| // SPDX-License-Identifier: GPL-2.0 |
| #include "callchain.h" |
| #include "debug.h" |
| #include "dso.h" |
| #include "build-id.h" |
| #include "hist.h" |
| #include "map.h" |
| #include "map_symbol.h" |
| #include "branch.h" |
| #include "mem-events.h" |
| #include "session.h" |
| #include "namespaces.h" |
| #include "cgroup.h" |
| #include "sort.h" |
| #include "units.h" |
| #include "evlist.h" |
| #include "evsel.h" |
| #include "annotate.h" |
| #include "srcline.h" |
| #include "symbol.h" |
| #include "thread.h" |
| #include "block-info.h" |
| #include "ui/progress.h" |
| #include <errno.h> |
| #include <math.h> |
| #include <inttypes.h> |
| #include <sys/param.h> |
| #include <linux/rbtree.h> |
| #include <linux/string.h> |
| #include <linux/time64.h> |
| #include <linux/zalloc.h> |
| |
| static bool hists__filter_entry_by_dso(struct hists *hists, |
| struct hist_entry *he); |
| static bool hists__filter_entry_by_thread(struct hists *hists, |
| struct hist_entry *he); |
| static bool hists__filter_entry_by_symbol(struct hists *hists, |
| struct hist_entry *he); |
| static bool hists__filter_entry_by_socket(struct hists *hists, |
| struct hist_entry *he); |
| |
| u16 hists__col_len(struct hists *hists, enum hist_column col) |
| { |
| return hists->col_len[col]; |
| } |
| |
| void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len) |
| { |
| hists->col_len[col] = len; |
| } |
| |
| bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len) |
| { |
| if (len > hists__col_len(hists, col)) { |
| hists__set_col_len(hists, col, len); |
| return true; |
| } |
| return false; |
| } |
| |
| void hists__reset_col_len(struct hists *hists) |
| { |
| enum hist_column col; |
| |
| for (col = 0; col < HISTC_NR_COLS; ++col) |
| hists__set_col_len(hists, col, 0); |
| } |
| |
| static void hists__set_unres_dso_col_len(struct hists *hists, int dso) |
| { |
| const unsigned int unresolved_col_width = BITS_PER_LONG / 4; |
| |
| if (hists__col_len(hists, dso) < unresolved_col_width && |
| !symbol_conf.col_width_list_str && !symbol_conf.field_sep && |
| !symbol_conf.dso_list) |
| hists__set_col_len(hists, dso, unresolved_col_width); |
| } |
| |
| void hists__calc_col_len(struct hists *hists, struct hist_entry *h) |
| { |
| const unsigned int unresolved_col_width = BITS_PER_LONG / 4; |
| int symlen; |
| u16 len; |
| |
| if (h->block_info) |
| return; |
| /* |
| * +4 accounts for '[x] ' priv level info |
| * +2 accounts for 0x prefix on raw addresses |
| * +3 accounts for ' y ' symtab origin info |
| */ |
| if (h->ms.sym) { |
| symlen = h->ms.sym->namelen + 4; |
| if (verbose > 0) |
| symlen += BITS_PER_LONG / 4 + 2 + 3; |
| hists__new_col_len(hists, HISTC_SYMBOL, symlen); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_SYMBOL, symlen); |
| hists__set_unres_dso_col_len(hists, HISTC_DSO); |
| } |
| |
| len = thread__comm_len(h->thread); |
| if (hists__new_col_len(hists, HISTC_COMM, len)) |
| hists__set_col_len(hists, HISTC_THREAD, len + 8); |
| |
| if (h->ms.map) { |
| len = dso__name_len(h->ms.map->dso); |
| hists__new_col_len(hists, HISTC_DSO, len); |
| } |
| |
| if (h->parent) |
| hists__new_col_len(hists, HISTC_PARENT, h->parent->namelen); |
| |
| if (h->branch_info) { |
| if (h->branch_info->from.ms.sym) { |
| symlen = (int)h->branch_info->from.ms.sym->namelen + 4; |
| if (verbose > 0) |
| symlen += BITS_PER_LONG / 4 + 2 + 3; |
| hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen); |
| |
| symlen = dso__name_len(h->branch_info->from.ms.map->dso); |
| hists__new_col_len(hists, HISTC_DSO_FROM, symlen); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_SYMBOL_FROM, symlen); |
| hists__new_col_len(hists, HISTC_ADDR_FROM, symlen); |
| hists__set_unres_dso_col_len(hists, HISTC_DSO_FROM); |
| } |
| |
| if (h->branch_info->to.ms.sym) { |
| symlen = (int)h->branch_info->to.ms.sym->namelen + 4; |
| if (verbose > 0) |
| symlen += BITS_PER_LONG / 4 + 2 + 3; |
| hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen); |
| |
| symlen = dso__name_len(h->branch_info->to.ms.map->dso); |
| hists__new_col_len(hists, HISTC_DSO_TO, symlen); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_SYMBOL_TO, symlen); |
| hists__new_col_len(hists, HISTC_ADDR_TO, symlen); |
| hists__set_unres_dso_col_len(hists, HISTC_DSO_TO); |
| } |
| |
| if (h->branch_info->srcline_from) |
| hists__new_col_len(hists, HISTC_SRCLINE_FROM, |
| strlen(h->branch_info->srcline_from)); |
| if (h->branch_info->srcline_to) |
| hists__new_col_len(hists, HISTC_SRCLINE_TO, |
| strlen(h->branch_info->srcline_to)); |
| } |
| |
| if (h->mem_info) { |
| if (h->mem_info->daddr.ms.sym) { |
| symlen = (int)h->mem_info->daddr.ms.sym->namelen + 4 |
| + unresolved_col_width + 2; |
| hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, |
| symlen); |
| hists__new_col_len(hists, HISTC_MEM_DCACHELINE, |
| symlen + 1); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, |
| symlen); |
| hists__new_col_len(hists, HISTC_MEM_DCACHELINE, |
| symlen); |
| } |
| |
| if (h->mem_info->iaddr.ms.sym) { |
| symlen = (int)h->mem_info->iaddr.ms.sym->namelen + 4 |
| + unresolved_col_width + 2; |
| hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, |
| symlen); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, |
| symlen); |
| } |
| |
| if (h->mem_info->daddr.ms.map) { |
| symlen = dso__name_len(h->mem_info->daddr.ms.map->dso); |
| hists__new_col_len(hists, HISTC_MEM_DADDR_DSO, |
| symlen); |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO); |
| } |
| |
| hists__new_col_len(hists, HISTC_MEM_PHYS_DADDR, |
| unresolved_col_width + 4 + 2); |
| |
| hists__new_col_len(hists, HISTC_MEM_DATA_PAGE_SIZE, |
| unresolved_col_width + 4 + 2); |
| |
| } else { |
| symlen = unresolved_col_width + 4 + 2; |
| hists__new_col_len(hists, HISTC_MEM_DADDR_SYMBOL, symlen); |
| hists__new_col_len(hists, HISTC_MEM_IADDR_SYMBOL, symlen); |
| hists__set_unres_dso_col_len(hists, HISTC_MEM_DADDR_DSO); |
| } |
| |
| hists__new_col_len(hists, HISTC_CGROUP, 6); |
| hists__new_col_len(hists, HISTC_CGROUP_ID, 20); |
| hists__new_col_len(hists, HISTC_CPU, 3); |
| hists__new_col_len(hists, HISTC_SOCKET, 6); |
| hists__new_col_len(hists, HISTC_MEM_LOCKED, 6); |
| hists__new_col_len(hists, HISTC_MEM_TLB, 22); |
| hists__new_col_len(hists, HISTC_MEM_SNOOP, 12); |
| hists__new_col_len(hists, HISTC_MEM_LVL, 21 + 3); |
| hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12); |
| hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12); |
| hists__new_col_len(hists, HISTC_MEM_BLOCKED, 10); |
| hists__new_col_len(hists, HISTC_LOCAL_INS_LAT, 13); |
| hists__new_col_len(hists, HISTC_GLOBAL_INS_LAT, 13); |
| hists__new_col_len(hists, HISTC_LOCAL_P_STAGE_CYC, 13); |
| hists__new_col_len(hists, HISTC_GLOBAL_P_STAGE_CYC, 13); |
| |
| if (symbol_conf.nanosecs) |
| hists__new_col_len(hists, HISTC_TIME, 16); |
| else |
| hists__new_col_len(hists, HISTC_TIME, 12); |
| hists__new_col_len(hists, HISTC_CODE_PAGE_SIZE, 6); |
| |
| if (h->srcline) { |
| len = MAX(strlen(h->srcline), strlen(sort_srcline.se_header)); |
| hists__new_col_len(hists, HISTC_SRCLINE, len); |
| } |
| |
| if (h->srcfile) |
| hists__new_col_len(hists, HISTC_SRCFILE, strlen(h->srcfile)); |
| |
| if (h->transaction) |
| hists__new_col_len(hists, HISTC_TRANSACTION, |
| hist_entry__transaction_len()); |
| |
| if (h->trace_output) |
| hists__new_col_len(hists, HISTC_TRACE, strlen(h->trace_output)); |
| |
| if (h->cgroup) { |
| const char *cgrp_name = "unknown"; |
| struct cgroup *cgrp = cgroup__find(h->ms.maps->machine->env, |
| h->cgroup); |
| if (cgrp != NULL) |
| cgrp_name = cgrp->name; |
| |
| hists__new_col_len(hists, HISTC_CGROUP, strlen(cgrp_name)); |
| } |
| } |
| |
| void hists__output_recalc_col_len(struct hists *hists, int max_rows) |
| { |
| struct rb_node *next = rb_first_cached(&hists->entries); |
| struct hist_entry *n; |
| int row = 0; |
| |
| hists__reset_col_len(hists); |
| |
| while (next && row++ < max_rows) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| if (!n->filtered) |
| hists__calc_col_len(hists, n); |
| next = rb_next(&n->rb_node); |
| } |
| } |
| |
| static void he_stat__add_cpumode_period(struct he_stat *he_stat, |
| unsigned int cpumode, u64 period) |
| { |
| switch (cpumode) { |
| case PERF_RECORD_MISC_KERNEL: |
| he_stat->period_sys += period; |
| break; |
| case PERF_RECORD_MISC_USER: |
| he_stat->period_us += period; |
| break; |
| case PERF_RECORD_MISC_GUEST_KERNEL: |
| he_stat->period_guest_sys += period; |
| break; |
| case PERF_RECORD_MISC_GUEST_USER: |
| he_stat->period_guest_us += period; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static long hist_time(unsigned long htime) |
| { |
| unsigned long time_quantum = symbol_conf.time_quantum; |
| if (time_quantum) |
| return (htime / time_quantum) * time_quantum; |
| return htime; |
| } |
| |
| static void he_stat__add_period(struct he_stat *he_stat, u64 period) |
| { |
| he_stat->period += period; |
| he_stat->nr_events += 1; |
| } |
| |
| static void he_stat__add_stat(struct he_stat *dest, struct he_stat *src) |
| { |
| dest->period += src->period; |
| dest->period_sys += src->period_sys; |
| dest->period_us += src->period_us; |
| dest->period_guest_sys += src->period_guest_sys; |
| dest->period_guest_us += src->period_guest_us; |
| dest->nr_events += src->nr_events; |
| } |
| |
| static void he_stat__decay(struct he_stat *he_stat) |
| { |
| he_stat->period = (he_stat->period * 7) / 8; |
| he_stat->nr_events = (he_stat->nr_events * 7) / 8; |
| /* XXX need decay for weight too? */ |
| } |
| |
| static void hists__delete_entry(struct hists *hists, struct hist_entry *he); |
| |
| static bool hists__decay_entry(struct hists *hists, struct hist_entry *he) |
| { |
| u64 prev_period = he->stat.period; |
| u64 diff; |
| |
| if (prev_period == 0) |
| return true; |
| |
| he_stat__decay(&he->stat); |
| if (symbol_conf.cumulate_callchain) |
| he_stat__decay(he->stat_acc); |
| decay_callchain(he->callchain); |
| |
| diff = prev_period - he->stat.period; |
| |
| if (!he->depth) { |
| hists->stats.total_period -= diff; |
| if (!he->filtered) |
| hists->stats.total_non_filtered_period -= diff; |
| } |
| |
| if (!he->leaf) { |
| struct hist_entry *child; |
| struct rb_node *node = rb_first_cached(&he->hroot_out); |
| while (node) { |
| child = rb_entry(node, struct hist_entry, rb_node); |
| node = rb_next(node); |
| |
| if (hists__decay_entry(hists, child)) |
| hists__delete_entry(hists, child); |
| } |
| } |
| |
| return he->stat.period == 0; |
| } |
| |
| static void hists__delete_entry(struct hists *hists, struct hist_entry *he) |
| { |
| struct rb_root_cached *root_in; |
| struct rb_root_cached *root_out; |
| |
| if (he->parent_he) { |
| root_in = &he->parent_he->hroot_in; |
| root_out = &he->parent_he->hroot_out; |
| } else { |
| if (hists__has(hists, need_collapse)) |
| root_in = &hists->entries_collapsed; |
| else |
| root_in = hists->entries_in; |
| root_out = &hists->entries; |
| } |
| |
| rb_erase_cached(&he->rb_node_in, root_in); |
| rb_erase_cached(&he->rb_node, root_out); |
| |
| --hists->nr_entries; |
| if (!he->filtered) |
| --hists->nr_non_filtered_entries; |
| |
| hist_entry__delete(he); |
| } |
| |
| void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel) |
| { |
| struct rb_node *next = rb_first_cached(&hists->entries); |
| struct hist_entry *n; |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| next = rb_next(&n->rb_node); |
| if (((zap_user && n->level == '.') || |
| (zap_kernel && n->level != '.') || |
| hists__decay_entry(hists, n))) { |
| hists__delete_entry(hists, n); |
| } |
| } |
| } |
| |
| void hists__delete_entries(struct hists *hists) |
| { |
| struct rb_node *next = rb_first_cached(&hists->entries); |
| struct hist_entry *n; |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| next = rb_next(&n->rb_node); |
| |
| hists__delete_entry(hists, n); |
| } |
| } |
| |
| struct hist_entry *hists__get_entry(struct hists *hists, int idx) |
| { |
| struct rb_node *next = rb_first_cached(&hists->entries); |
| struct hist_entry *n; |
| int i = 0; |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node); |
| if (i == idx) |
| return n; |
| |
| next = rb_next(&n->rb_node); |
| i++; |
| } |
| |
| return NULL; |
| } |
| |
| /* |
| * histogram, sorted on item, collects periods |
| */ |
| |
| static int hist_entry__init(struct hist_entry *he, |
| struct hist_entry *template, |
| bool sample_self, |
| size_t callchain_size) |
| { |
| *he = *template; |
| he->callchain_size = callchain_size; |
| |
| if (symbol_conf.cumulate_callchain) { |
| he->stat_acc = malloc(sizeof(he->stat)); |
| if (he->stat_acc == NULL) |
| return -ENOMEM; |
| memcpy(he->stat_acc, &he->stat, sizeof(he->stat)); |
| if (!sample_self) |
| memset(&he->stat, 0, sizeof(he->stat)); |
| } |
| |
| map__get(he->ms.map); |
| |
| if (he->branch_info) { |
| /* |
| * This branch info is (a part of) allocated from |
| * sample__resolve_bstack() and will be freed after |
| * adding new entries. So we need to save a copy. |
| */ |
| he->branch_info = malloc(sizeof(*he->branch_info)); |
| if (he->branch_info == NULL) |
| goto err; |
| |
| memcpy(he->branch_info, template->branch_info, |
| sizeof(*he->branch_info)); |
| |
| map__get(he->branch_info->from.ms.map); |
| map__get(he->branch_info->to.ms.map); |
| } |
| |
| if (he->mem_info) { |
| map__get(he->mem_info->iaddr.ms.map); |
| map__get(he->mem_info->daddr.ms.map); |
| } |
| |
| if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) |
| callchain_init(he->callchain); |
| |
| if (he->raw_data) { |
| he->raw_data = memdup(he->raw_data, he->raw_size); |
| if (he->raw_data == NULL) |
| goto err_infos; |
| } |
| |
| if (he->srcline) { |
| he->srcline = strdup(he->srcline); |
| if (he->srcline == NULL) |
| goto err_rawdata; |
| } |
| |
| if (symbol_conf.res_sample) { |
| he->res_samples = calloc(sizeof(struct res_sample), |
| symbol_conf.res_sample); |
| if (!he->res_samples) |
| goto err_srcline; |
| } |
| |
| INIT_LIST_HEAD(&he->pairs.node); |
| thread__get(he->thread); |
| he->hroot_in = RB_ROOT_CACHED; |
| he->hroot_out = RB_ROOT_CACHED; |
| |
| if (!symbol_conf.report_hierarchy) |
| he->leaf = true; |
| |
| return 0; |
| |
| err_srcline: |
| zfree(&he->srcline); |
| |
| err_rawdata: |
| zfree(&he->raw_data); |
| |
| err_infos: |
| if (he->branch_info) { |
| map__put(he->branch_info->from.ms.map); |
| map__put(he->branch_info->to.ms.map); |
| zfree(&he->branch_info); |
| } |
| if (he->mem_info) { |
| map__put(he->mem_info->iaddr.ms.map); |
| map__put(he->mem_info->daddr.ms.map); |
| } |
| err: |
| map__zput(he->ms.map); |
| zfree(&he->stat_acc); |
| return -ENOMEM; |
| } |
| |
| static void *hist_entry__zalloc(size_t size) |
| { |
| return zalloc(size + sizeof(struct hist_entry)); |
| } |
| |
| static void hist_entry__free(void *ptr) |
| { |
| free(ptr); |
| } |
| |
| static struct hist_entry_ops default_ops = { |
| .new = hist_entry__zalloc, |
| .free = hist_entry__free, |
| }; |
| |
| static struct hist_entry *hist_entry__new(struct hist_entry *template, |
| bool sample_self) |
| { |
| struct hist_entry_ops *ops = template->ops; |
| size_t callchain_size = 0; |
| struct hist_entry *he; |
| int err = 0; |
| |
| if (!ops) |
| ops = template->ops = &default_ops; |
| |
| if (symbol_conf.use_callchain) |
| callchain_size = sizeof(struct callchain_root); |
| |
| he = ops->new(callchain_size); |
| if (he) { |
| err = hist_entry__init(he, template, sample_self, callchain_size); |
| if (err) { |
| ops->free(he); |
| he = NULL; |
| } |
| } |
| |
| return he; |
| } |
| |
| static u8 symbol__parent_filter(const struct symbol *parent) |
| { |
| if (symbol_conf.exclude_other && parent == NULL) |
| return 1 << HIST_FILTER__PARENT; |
| return 0; |
| } |
| |
| static void hist_entry__add_callchain_period(struct hist_entry *he, u64 period) |
| { |
| if (!hist_entry__has_callchains(he) || !symbol_conf.use_callchain) |
| return; |
| |
| he->hists->callchain_period += period; |
| if (!he->filtered) |
| he->hists->callchain_non_filtered_period += period; |
| } |
| |
| static struct hist_entry *hists__findnew_entry(struct hists *hists, |
| struct hist_entry *entry, |
| struct addr_location *al, |
| bool sample_self) |
| { |
| struct rb_node **p; |
| struct rb_node *parent = NULL; |
| struct hist_entry *he; |
| int64_t cmp; |
| u64 period = entry->stat.period; |
| bool leftmost = true; |
| |
| p = &hists->entries_in->rb_root.rb_node; |
| |
| while (*p != NULL) { |
| parent = *p; |
| he = rb_entry(parent, struct hist_entry, rb_node_in); |
| |
| /* |
| * Make sure that it receives arguments in a same order as |
| * hist_entry__collapse() so that we can use an appropriate |
| * function when searching an entry regardless which sort |
| * keys were used. |
| */ |
| cmp = hist_entry__cmp(he, entry); |
| |
| if (!cmp) { |
| if (sample_self) { |
| he_stat__add_period(&he->stat, period); |
| hist_entry__add_callchain_period(he, period); |
| } |
| if (symbol_conf.cumulate_callchain) |
| he_stat__add_period(he->stat_acc, period); |
| |
| /* |
| * This mem info was allocated from sample__resolve_mem |
| * and will not be used anymore. |
| */ |
| mem_info__zput(entry->mem_info); |
| |
| block_info__zput(entry->block_info); |
| |
| /* If the map of an existing hist_entry has |
| * become out-of-date due to an exec() or |
| * similar, update it. Otherwise we will |
| * mis-adjust symbol addresses when computing |
| * the history counter to increment. |
| */ |
| if (he->ms.map != entry->ms.map) { |
| map__put(he->ms.map); |
| he->ms.map = map__get(entry->ms.map); |
| } |
| goto out; |
| } |
| |
| if (cmp < 0) |
| p = &(*p)->rb_left; |
| else { |
| p = &(*p)->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| he = hist_entry__new(entry, sample_self); |
| if (!he) |
| return NULL; |
| |
| if (sample_self) |
| hist_entry__add_callchain_period(he, period); |
| hists->nr_entries++; |
| |
| rb_link_node(&he->rb_node_in, parent, p); |
| rb_insert_color_cached(&he->rb_node_in, hists->entries_in, leftmost); |
| out: |
| if (sample_self) |
| he_stat__add_cpumode_period(&he->stat, al->cpumode, period); |
| if (symbol_conf.cumulate_callchain) |
| he_stat__add_cpumode_period(he->stat_acc, al->cpumode, period); |
| return he; |
| } |
| |
| static unsigned random_max(unsigned high) |
| { |
| unsigned thresh = -high % high; |
| for (;;) { |
| unsigned r = random(); |
| if (r >= thresh) |
| return r % high; |
| } |
| } |
| |
| static void hists__res_sample(struct hist_entry *he, struct perf_sample *sample) |
| { |
| struct res_sample *r; |
| int j; |
| |
| if (he->num_res < symbol_conf.res_sample) { |
| j = he->num_res++; |
| } else { |
| j = random_max(symbol_conf.res_sample); |
| } |
| r = &he->res_samples[j]; |
| r->time = sample->time; |
| r->cpu = sample->cpu; |
| r->tid = sample->tid; |
| } |
| |
| static struct hist_entry* |
| __hists__add_entry(struct hists *hists, |
| struct addr_location *al, |
| struct symbol *sym_parent, |
| struct branch_info *bi, |
| struct mem_info *mi, |
| struct block_info *block_info, |
| struct perf_sample *sample, |
| bool sample_self, |
| struct hist_entry_ops *ops) |
| { |
| struct namespaces *ns = thread__namespaces(al->thread); |
| struct hist_entry entry = { |
| .thread = al->thread, |
| .comm = thread__comm(al->thread), |
| .cgroup_id = { |
| .dev = ns ? ns->link_info[CGROUP_NS_INDEX].dev : 0, |
| .ino = ns ? ns->link_info[CGROUP_NS_INDEX].ino : 0, |
| }, |
| .cgroup = sample->cgroup, |
| .ms = { |
| .maps = al->maps, |
| .map = al->map, |
| .sym = al->sym, |
| }, |
| .srcline = (char *) al->srcline, |
| .socket = al->socket, |
| .cpu = al->cpu, |
| .cpumode = al->cpumode, |
| .ip = al->addr, |
| .level = al->level, |
| .code_page_size = sample->code_page_size, |
| .stat = { |
| .nr_events = 1, |
| .period = sample->period, |
| }, |
| .parent = sym_parent, |
| .filtered = symbol__parent_filter(sym_parent) | al->filtered, |
| .hists = hists, |
| .branch_info = bi, |
| .mem_info = mi, |
| .block_info = block_info, |
| .transaction = sample->transaction, |
| .raw_data = sample->raw_data, |
| .raw_size = sample->raw_size, |
| .ops = ops, |
| .time = hist_time(sample->time), |
| .weight = sample->weight, |
| .ins_lat = sample->ins_lat, |
| .p_stage_cyc = sample->p_stage_cyc, |
| }, *he = hists__findnew_entry(hists, &entry, al, sample_self); |
| |
| if (!hists->has_callchains && he && he->callchain_size != 0) |
| hists->has_callchains = true; |
| if (he && symbol_conf.res_sample) |
| hists__res_sample(he, sample); |
| return he; |
| } |
| |
| struct hist_entry *hists__add_entry(struct hists *hists, |
| struct addr_location *al, |
| struct symbol *sym_parent, |
| struct branch_info *bi, |
| struct mem_info *mi, |
| struct perf_sample *sample, |
| bool sample_self) |
| { |
| return __hists__add_entry(hists, al, sym_parent, bi, mi, NULL, |
| sample, sample_self, NULL); |
| } |
| |
| struct hist_entry *hists__add_entry_ops(struct hists *hists, |
| struct hist_entry_ops *ops, |
| struct addr_location *al, |
| struct symbol *sym_parent, |
| struct branch_info *bi, |
| struct mem_info *mi, |
| struct perf_sample *sample, |
| bool sample_self) |
| { |
| return __hists__add_entry(hists, al, sym_parent, bi, mi, NULL, |
| sample, sample_self, ops); |
| } |
| |
| struct hist_entry *hists__add_entry_block(struct hists *hists, |
| struct addr_location *al, |
| struct block_info *block_info) |
| { |
| struct hist_entry entry = { |
| .block_info = block_info, |
| .hists = hists, |
| .ms = { |
| .maps = al->maps, |
| .map = al->map, |
| .sym = al->sym, |
| }, |
| }, *he = hists__findnew_entry(hists, &entry, al, false); |
| |
| return he; |
| } |
| |
| static int |
| iter_next_nop_entry(struct hist_entry_iter *iter __maybe_unused, |
| struct addr_location *al __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static int |
| iter_add_next_nop_entry(struct hist_entry_iter *iter __maybe_unused, |
| struct addr_location *al __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static int |
| iter_prepare_mem_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| struct perf_sample *sample = iter->sample; |
| struct mem_info *mi; |
| |
| mi = sample__resolve_mem(sample, al); |
| if (mi == NULL) |
| return -ENOMEM; |
| |
| iter->priv = mi; |
| return 0; |
| } |
| |
| static int |
| iter_add_single_mem_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| u64 cost; |
| struct mem_info *mi = iter->priv; |
| struct hists *hists = evsel__hists(iter->evsel); |
| struct perf_sample *sample = iter->sample; |
| struct hist_entry *he; |
| |
| if (mi == NULL) |
| return -EINVAL; |
| |
| cost = sample->weight; |
| if (!cost) |
| cost = 1; |
| |
| /* |
| * must pass period=weight in order to get the correct |
| * sorting from hists__collapse_resort() which is solely |
| * based on periods. We want sorting be done on nr_events * weight |
| * and this is indirectly achieved by passing period=weight here |
| * and the he_stat__add_period() function. |
| */ |
| sample->period = cost; |
| |
| he = hists__add_entry(hists, al, iter->parent, NULL, mi, |
| sample, true); |
| if (!he) |
| return -ENOMEM; |
| |
| iter->he = he; |
| return 0; |
| } |
| |
| static int |
| iter_finish_mem_entry(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused) |
| { |
| struct evsel *evsel = iter->evsel; |
| struct hists *hists = evsel__hists(evsel); |
| struct hist_entry *he = iter->he; |
| int err = -EINVAL; |
| |
| if (he == NULL) |
| goto out; |
| |
| hists__inc_nr_samples(hists, he->filtered); |
| |
| err = hist_entry__append_callchain(he, iter->sample); |
| |
| out: |
| /* |
| * We don't need to free iter->priv (mem_info) here since the mem info |
| * was either already freed in hists__findnew_entry() or passed to a |
| * new hist entry by hist_entry__new(). |
| */ |
| iter->priv = NULL; |
| |
| iter->he = NULL; |
| return err; |
| } |
| |
| static int |
| iter_prepare_branch_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| struct branch_info *bi; |
| struct perf_sample *sample = iter->sample; |
| |
| bi = sample__resolve_bstack(sample, al); |
| if (!bi) |
| return -ENOMEM; |
| |
| iter->curr = 0; |
| iter->total = sample->branch_stack->nr; |
| |
| iter->priv = bi; |
| return 0; |
| } |
| |
| static int |
| iter_add_single_branch_entry(struct hist_entry_iter *iter __maybe_unused, |
| struct addr_location *al __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static int |
| iter_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| struct branch_info *bi = iter->priv; |
| int i = iter->curr; |
| |
| if (bi == NULL) |
| return 0; |
| |
| if (iter->curr >= iter->total) |
| return 0; |
| |
| al->maps = bi[i].to.ms.maps; |
| al->map = bi[i].to.ms.map; |
| al->sym = bi[i].to.ms.sym; |
| al->addr = bi[i].to.addr; |
| return 1; |
| } |
| |
| static int |
| iter_add_next_branch_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| struct branch_info *bi; |
| struct evsel *evsel = iter->evsel; |
| struct hists *hists = evsel__hists(evsel); |
| struct perf_sample *sample = iter->sample; |
| struct hist_entry *he = NULL; |
| int i = iter->curr; |
| int err = 0; |
| |
| bi = iter->priv; |
| |
| if (iter->hide_unresolved && !(bi[i].from.ms.sym && bi[i].to.ms.sym)) |
| goto out; |
| |
| /* |
| * The report shows the percentage of total branches captured |
| * and not events sampled. Thus we use a pseudo period of 1. |
| */ |
| sample->period = 1; |
| sample->weight = bi->flags.cycles ? bi->flags.cycles : 1; |
| |
| he = hists__add_entry(hists, al, iter->parent, &bi[i], NULL, |
| sample, true); |
| if (he == NULL) |
| return -ENOMEM; |
| |
| hists__inc_nr_samples(hists, he->filtered); |
| |
| out: |
| iter->he = he; |
| iter->curr++; |
| return err; |
| } |
| |
| static int |
| iter_finish_branch_entry(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused) |
| { |
| zfree(&iter->priv); |
| iter->he = NULL; |
| |
| return iter->curr >= iter->total ? 0 : -1; |
| } |
| |
| static int |
| iter_prepare_normal_entry(struct hist_entry_iter *iter __maybe_unused, |
| struct addr_location *al __maybe_unused) |
| { |
| return 0; |
| } |
| |
| static int |
| iter_add_single_normal_entry(struct hist_entry_iter *iter, struct addr_location *al) |
| { |
| struct evsel *evsel = iter->evsel; |
| struct perf_sample *sample = iter->sample; |
| struct hist_entry *he; |
| |
| he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL, |
| sample, true); |
| if (he == NULL) |
| return -ENOMEM; |
| |
| iter->he = he; |
| return 0; |
| } |
| |
| static int |
| iter_finish_normal_entry(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused) |
| { |
| struct hist_entry *he = iter->he; |
| struct evsel *evsel = iter->evsel; |
| struct perf_sample *sample = iter->sample; |
| |
| if (he == NULL) |
| return 0; |
| |
| iter->he = NULL; |
| |
| hists__inc_nr_samples(evsel__hists(evsel), he->filtered); |
| |
| return hist_entry__append_callchain(he, sample); |
| } |
| |
| static int |
| iter_prepare_cumulative_entry(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused) |
| { |
| struct hist_entry **he_cache; |
| |
| callchain_cursor_commit(&callchain_cursor); |
| |
| /* |
| * This is for detecting cycles or recursions so that they're |
| * cumulated only one time to prevent entries more than 100% |
| * overhead. |
| */ |
| he_cache = malloc(sizeof(*he_cache) * (callchain_cursor.nr + 1)); |
| if (he_cache == NULL) |
| return -ENOMEM; |
| |
| iter->priv = he_cache; |
| iter->curr = 0; |
| |
| return 0; |
| } |
| |
| static int |
| iter_add_single_cumulative_entry(struct hist_entry_iter *iter, |
| struct addr_location *al) |
| { |
| struct evsel *evsel = iter->evsel; |
| struct hists *hists = evsel__hists(evsel); |
| struct perf_sample *sample = iter->sample; |
| struct hist_entry **he_cache = iter->priv; |
| struct hist_entry *he; |
| int err = 0; |
| |
| he = hists__add_entry(hists, al, iter->parent, NULL, NULL, |
| sample, true); |
| if (he == NULL) |
| return -ENOMEM; |
| |
| iter->he = he; |
| he_cache[iter->curr++] = he; |
| |
| hist_entry__append_callchain(he, sample); |
| |
| /* |
| * We need to re-initialize the cursor since callchain_append() |
| * advanced the cursor to the end. |
| */ |
| callchain_cursor_commit(&callchain_cursor); |
| |
| hists__inc_nr_samples(hists, he->filtered); |
| |
| return err; |
| } |
| |
| static int |
| iter_next_cumulative_entry(struct hist_entry_iter *iter, |
| struct addr_location *al) |
| { |
| struct callchain_cursor_node *node; |
| |
| node = callchain_cursor_current(&callchain_cursor); |
| if (node == NULL) |
| return 0; |
| |
| return fill_callchain_info(al, node, iter->hide_unresolved); |
| } |
| |
| static bool |
| hist_entry__fast__sym_diff(struct hist_entry *left, |
| struct hist_entry *right) |
| { |
| struct symbol *sym_l = left->ms.sym; |
| struct symbol *sym_r = right->ms.sym; |
| |
| if (!sym_l && !sym_r) |
| return left->ip != right->ip; |
| |
| return !!_sort__sym_cmp(sym_l, sym_r); |
| } |
| |
| |
| static int |
| iter_add_next_cumulative_entry(struct hist_entry_iter *iter, |
| struct addr_location *al) |
| { |
| struct evsel *evsel = iter->evsel; |
| struct perf_sample *sample = iter->sample; |
| struct hist_entry **he_cache = iter->priv; |
| struct hist_entry *he; |
| struct hist_entry he_tmp = { |
| .hists = evsel__hists(evsel), |
| .cpu = al->cpu, |
| .thread = al->thread, |
| .comm = thread__comm(al->thread), |
| .ip = al->addr, |
| .ms = { |
| .maps = al->maps, |
| .map = al->map, |
| .sym = al->sym, |
| }, |
| .srcline = (char *) al->srcline, |
| .parent = iter->parent, |
| .raw_data = sample->raw_data, |
| .raw_size = sample->raw_size, |
| }; |
| int i; |
| struct callchain_cursor cursor; |
| bool fast = hists__has(he_tmp.hists, sym); |
| |
| callchain_cursor_snapshot(&cursor, &callchain_cursor); |
| |
| callchain_cursor_advance(&callchain_cursor); |
| |
| /* |
| * Check if there's duplicate entries in the callchain. |
| * It's possible that it has cycles or recursive calls. |
| */ |
| for (i = 0; i < iter->curr; i++) { |
| /* |
| * For most cases, there are no duplicate entries in callchain. |
| * The symbols are usually different. Do a quick check for |
| * symbols first. |
| */ |
| if (fast && hist_entry__fast__sym_diff(he_cache[i], &he_tmp)) |
| continue; |
| |
| if (hist_entry__cmp(he_cache[i], &he_tmp) == 0) { |
| /* to avoid calling callback function */ |
| iter->he = NULL; |
| return 0; |
| } |
| } |
| |
| he = hists__add_entry(evsel__hists(evsel), al, iter->parent, NULL, NULL, |
| sample, false); |
| if (he == NULL) |
| return -ENOMEM; |
| |
| iter->he = he; |
| he_cache[iter->curr++] = he; |
| |
| if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) |
| callchain_append(he->callchain, &cursor, sample->period); |
| return 0; |
| } |
| |
| static int |
| iter_finish_cumulative_entry(struct hist_entry_iter *iter, |
| struct addr_location *al __maybe_unused) |
| { |
| zfree(&iter->priv); |
| iter->he = NULL; |
| |
| return 0; |
| } |
| |
| const struct hist_iter_ops hist_iter_mem = { |
| .prepare_entry = iter_prepare_mem_entry, |
| .add_single_entry = iter_add_single_mem_entry, |
| .next_entry = iter_next_nop_entry, |
| .add_next_entry = iter_add_next_nop_entry, |
| .finish_entry = iter_finish_mem_entry, |
| }; |
| |
| const struct hist_iter_ops hist_iter_branch = { |
| .prepare_entry = iter_prepare_branch_entry, |
| .add_single_entry = iter_add_single_branch_entry, |
| .next_entry = iter_next_branch_entry, |
| .add_next_entry = iter_add_next_branch_entry, |
| .finish_entry = iter_finish_branch_entry, |
| }; |
| |
| const struct hist_iter_ops hist_iter_normal = { |
| .prepare_entry = iter_prepare_normal_entry, |
| .add_single_entry = iter_add_single_normal_entry, |
| .next_entry = iter_next_nop_entry, |
| .add_next_entry = iter_add_next_nop_entry, |
| .finish_entry = iter_finish_normal_entry, |
| }; |
| |
| const struct hist_iter_ops hist_iter_cumulative = { |
| .prepare_entry = iter_prepare_cumulative_entry, |
| .add_single_entry = iter_add_single_cumulative_entry, |
| .next_entry = iter_next_cumulative_entry, |
| .add_next_entry = iter_add_next_cumulative_entry, |
| .finish_entry = iter_finish_cumulative_entry, |
| }; |
| |
| int hist_entry_iter__add(struct hist_entry_iter *iter, struct addr_location *al, |
| int max_stack_depth, void *arg) |
| { |
| int err, err2; |
| struct map *alm = NULL; |
| |
| if (al) |
| alm = map__get(al->map); |
| |
| err = sample__resolve_callchain(iter->sample, &callchain_cursor, &iter->parent, |
| iter->evsel, al, max_stack_depth); |
| if (err) { |
| map__put(alm); |
| return err; |
| } |
| |
| err = iter->ops->prepare_entry(iter, al); |
| if (err) |
| goto out; |
| |
| err = iter->ops->add_single_entry(iter, al); |
| if (err) |
| goto out; |
| |
| if (iter->he && iter->add_entry_cb) { |
| err = iter->add_entry_cb(iter, al, true, arg); |
| if (err) |
| goto out; |
| } |
| |
| while (iter->ops->next_entry(iter, al)) { |
| err = iter->ops->add_next_entry(iter, al); |
| if (err) |
| break; |
| |
| if (iter->he && iter->add_entry_cb) { |
| err = iter->add_entry_cb(iter, al, false, arg); |
| if (err) |
| goto out; |
| } |
| } |
| |
| out: |
| err2 = iter->ops->finish_entry(iter, al); |
| if (!err) |
| err = err2; |
| |
| map__put(alm); |
| |
| return err; |
| } |
| |
| int64_t |
| hist_entry__cmp(struct hist_entry *left, struct hist_entry *right) |
| { |
| struct hists *hists = left->hists; |
| struct perf_hpp_fmt *fmt; |
| int64_t cmp = 0; |
| |
| hists__for_each_sort_list(hists, fmt) { |
| if (perf_hpp__is_dynamic_entry(fmt) && |
| !perf_hpp__defined_dynamic_entry(fmt, hists)) |
| continue; |
| |
| cmp = fmt->cmp(fmt, left, right); |
| if (cmp) |
| break; |
| } |
| |
| return cmp; |
| } |
| |
| int64_t |
| hist_entry__collapse(struct hist_entry *left, struct hist_entry *right) |
| { |
| struct hists *hists = left->hists; |
| struct perf_hpp_fmt *fmt; |
| int64_t cmp = 0; |
| |
| hists__for_each_sort_list(hists, fmt) { |
| if (perf_hpp__is_dynamic_entry(fmt) && |
| !perf_hpp__defined_dynamic_entry(fmt, hists)) |
| continue; |
| |
| cmp = fmt->collapse(fmt, left, right); |
| if (cmp) |
| break; |
| } |
| |
| return cmp; |
| } |
| |
| void hist_entry__delete(struct hist_entry *he) |
| { |
| struct hist_entry_ops *ops = he->ops; |
| |
| thread__zput(he->thread); |
| map__zput(he->ms.map); |
| |
| if (he->branch_info) { |
| map__zput(he->branch_info->from.ms.map); |
| map__zput(he->branch_info->to.ms.map); |
| free_srcline(he->branch_info->srcline_from); |
| free_srcline(he->branch_info->srcline_to); |
| zfree(&he->branch_info); |
| } |
| |
| if (he->mem_info) { |
| map__zput(he->mem_info->iaddr.ms.map); |
| map__zput(he->mem_info->daddr.ms.map); |
| mem_info__zput(he->mem_info); |
| } |
| |
| if (he->block_info) |
| block_info__zput(he->block_info); |
| |
| zfree(&he->res_samples); |
| zfree(&he->stat_acc); |
| free_srcline(he->srcline); |
| if (he->srcfile && he->srcfile[0]) |
| zfree(&he->srcfile); |
| free_callchain(he->callchain); |
| zfree(&he->trace_output); |
| zfree(&he->raw_data); |
| ops->free(he); |
| } |
| |
| /* |
| * If this is not the last column, then we need to pad it according to the |
| * pre-calculated max length for this column, otherwise don't bother adding |
| * spaces because that would break viewing this with, for instance, 'less', |
| * that would show tons of trailing spaces when a long C++ demangled method |
| * names is sampled. |
| */ |
| int hist_entry__snprintf_alignment(struct hist_entry *he, struct perf_hpp *hpp, |
| struct perf_hpp_fmt *fmt, int printed) |
| { |
| if (!list_is_last(&fmt->list, &he->hists->hpp_list->fields)) { |
| const int width = fmt->width(fmt, hpp, he->hists); |
| if (printed < width) { |
| advance_hpp(hpp, printed); |
| printed = scnprintf(hpp->buf, hpp->size, "%-*s", width - printed, " "); |
| } |
| } |
| |
| return printed; |
| } |
| |
| /* |
| * collapse the histogram |
| */ |
| |
| static void hists__apply_filters(struct hists *hists, struct hist_entry *he); |
| static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *he, |
| enum hist_filter type); |
| |
| typedef bool (*fmt_chk_fn)(struct perf_hpp_fmt *fmt); |
| |
| static bool check_thread_entry(struct perf_hpp_fmt *fmt) |
| { |
| return perf_hpp__is_thread_entry(fmt) || perf_hpp__is_comm_entry(fmt); |
| } |
| |
| static void hist_entry__check_and_remove_filter(struct hist_entry *he, |
| enum hist_filter type, |
| fmt_chk_fn check) |
| { |
| struct perf_hpp_fmt *fmt; |
| bool type_match = false; |
| struct hist_entry *parent = he->parent_he; |
| |
| switch (type) { |
| case HIST_FILTER__THREAD: |
| if (symbol_conf.comm_list == NULL && |
| symbol_conf.pid_list == NULL && |
| symbol_conf.tid_list == NULL) |
| return; |
| break; |
| case HIST_FILTER__DSO: |
| if (symbol_conf.dso_list == NULL) |
| return; |
| break; |
| case HIST_FILTER__SYMBOL: |
| if (symbol_conf.sym_list == NULL) |
| return; |
| break; |
| case HIST_FILTER__PARENT: |
| case HIST_FILTER__GUEST: |
| case HIST_FILTER__HOST: |
| case HIST_FILTER__SOCKET: |
| case HIST_FILTER__C2C: |
| default: |
| return; |
| } |
| |
| /* if it's filtered by own fmt, it has to have filter bits */ |
| perf_hpp_list__for_each_format(he->hpp_list, fmt) { |
| if (check(fmt)) { |
| type_match = true; |
| break; |
| } |
| } |
| |
| if (type_match) { |
| /* |
| * If the filter is for current level entry, propagate |
| * filter marker to parents. The marker bit was |
| * already set by default so it only needs to clear |
| * non-filtered entries. |
| */ |
| if (!(he->filtered & (1 << type))) { |
| while (parent) { |
| parent->filtered &= ~(1 << type); |
| parent = parent->parent_he; |
| } |
| } |
| } else { |
| /* |
| * If current entry doesn't have matching formats, set |
| * filter marker for upper level entries. it will be |
| * cleared if its lower level entries is not filtered. |
| * |
| * For lower-level entries, it inherits parent's |
| * filter bit so that lower level entries of a |
| * non-filtered entry won't set the filter marker. |
| */ |
| if (parent == NULL) |
| he->filtered |= (1 << type); |
| else |
| he->filtered |= (parent->filtered & (1 << type)); |
| } |
| } |
| |
| static void hist_entry__apply_hierarchy_filters(struct hist_entry *he) |
| { |
| hist_entry__check_and_remove_filter(he, HIST_FILTER__THREAD, |
| check_thread_entry); |
| |
| hist_entry__check_and_remove_filter(he, HIST_FILTER__DSO, |
| perf_hpp__is_dso_entry); |
| |
| hist_entry__check_and_remove_filter(he, HIST_FILTER__SYMBOL, |
| perf_hpp__is_sym_entry); |
| |
| hists__apply_filters(he->hists, he); |
| } |
| |
| static struct hist_entry *hierarchy_insert_entry(struct hists *hists, |
| struct rb_root_cached *root, |
| struct hist_entry *he, |
| struct hist_entry *parent_he, |
| struct perf_hpp_list *hpp_list) |
| { |
| struct rb_node **p = &root->rb_root.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter, *new; |
| struct perf_hpp_fmt *fmt; |
| int64_t cmp; |
| bool leftmost = true; |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node_in); |
| |
| cmp = 0; |
| perf_hpp_list__for_each_sort_list(hpp_list, fmt) { |
| cmp = fmt->collapse(fmt, iter, he); |
| if (cmp) |
| break; |
| } |
| |
| if (!cmp) { |
| he_stat__add_stat(&iter->stat, &he->stat); |
| return iter; |
| } |
| |
| if (cmp < 0) |
| p = &parent->rb_left; |
| else { |
| p = &parent->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| new = hist_entry__new(he, true); |
| if (new == NULL) |
| return NULL; |
| |
| hists->nr_entries++; |
| |
| /* save related format list for output */ |
| new->hpp_list = hpp_list; |
| new->parent_he = parent_he; |
| |
| hist_entry__apply_hierarchy_filters(new); |
| |
| /* some fields are now passed to 'new' */ |
| perf_hpp_list__for_each_sort_list(hpp_list, fmt) { |
| if (perf_hpp__is_trace_entry(fmt) || perf_hpp__is_dynamic_entry(fmt)) |
| he->trace_output = NULL; |
| else |
| new->trace_output = NULL; |
| |
| if (perf_hpp__is_srcline_entry(fmt)) |
| he->srcline = NULL; |
| else |
| new->srcline = NULL; |
| |
| if (perf_hpp__is_srcfile_entry(fmt)) |
| he->srcfile = NULL; |
| else |
| new->srcfile = NULL; |
| } |
| |
| rb_link_node(&new->rb_node_in, parent, p); |
| rb_insert_color_cached(&new->rb_node_in, root, leftmost); |
| return new; |
| } |
| |
| static int hists__hierarchy_insert_entry(struct hists *hists, |
| struct rb_root_cached *root, |
| struct hist_entry *he) |
| { |
| struct perf_hpp_list_node *node; |
| struct hist_entry *new_he = NULL; |
| struct hist_entry *parent = NULL; |
| int depth = 0; |
| int ret = 0; |
| |
| list_for_each_entry(node, &hists->hpp_formats, list) { |
| /* skip period (overhead) and elided columns */ |
| if (node->level == 0 || node->skip) |
| continue; |
| |
| /* insert copy of 'he' for each fmt into the hierarchy */ |
| new_he = hierarchy_insert_entry(hists, root, he, parent, &node->hpp); |
| if (new_he == NULL) { |
| ret = -1; |
| break; |
| } |
| |
| root = &new_he->hroot_in; |
| new_he->depth = depth++; |
| parent = new_he; |
| } |
| |
| if (new_he) { |
| new_he->leaf = true; |
| |
| if (hist_entry__has_callchains(new_he) && |
| symbol_conf.use_callchain) { |
| callchain_cursor_reset(&callchain_cursor); |
| if (callchain_merge(&callchain_cursor, |
| new_he->callchain, |
| he->callchain) < 0) |
| ret = -1; |
| } |
| } |
| |
| /* 'he' is no longer used */ |
| hist_entry__delete(he); |
| |
| /* return 0 (or -1) since it already applied filters */ |
| return ret; |
| } |
| |
| static int hists__collapse_insert_entry(struct hists *hists, |
| struct rb_root_cached *root, |
| struct hist_entry *he) |
| { |
| struct rb_node **p = &root->rb_root.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| int64_t cmp; |
| bool leftmost = true; |
| |
| if (symbol_conf.report_hierarchy) |
| return hists__hierarchy_insert_entry(hists, root, he); |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node_in); |
| |
| cmp = hist_entry__collapse(iter, he); |
| |
| if (!cmp) { |
| int ret = 0; |
| |
| he_stat__add_stat(&iter->stat, &he->stat); |
| if (symbol_conf.cumulate_callchain) |
| he_stat__add_stat(iter->stat_acc, he->stat_acc); |
| |
| if (hist_entry__has_callchains(he) && symbol_conf.use_callchain) { |
| callchain_cursor_reset(&callchain_cursor); |
| if (callchain_merge(&callchain_cursor, |
| iter->callchain, |
| he->callchain) < 0) |
| ret = -1; |
| } |
| hist_entry__delete(he); |
| return ret; |
| } |
| |
| if (cmp < 0) |
| p = &(*p)->rb_left; |
| else { |
| p = &(*p)->rb_right; |
| leftmost = false; |
| } |
| } |
| hists->nr_entries++; |
| |
| rb_link_node(&he->rb_node_in, parent, p); |
| rb_insert_color_cached(&he->rb_node_in, root, leftmost); |
| return 1; |
| } |
| |
| struct rb_root_cached *hists__get_rotate_entries_in(struct hists *hists) |
| { |
| struct rb_root_cached *root; |
| |
| pthread_mutex_lock(&hists->lock); |
| |
| root = hists->entries_in; |
| if (++hists->entries_in > &hists->entries_in_array[1]) |
| hists->entries_in = &hists->entries_in_array[0]; |
| |
| pthread_mutex_unlock(&hists->lock); |
| |
| return root; |
| } |
| |
| static void hists__apply_filters(struct hists *hists, struct hist_entry *he) |
| { |
| hists__filter_entry_by_dso(hists, he); |
| hists__filter_entry_by_thread(hists, he); |
| hists__filter_entry_by_symbol(hists, he); |
| hists__filter_entry_by_socket(hists, he); |
| } |
| |
| int hists__collapse_resort(struct hists *hists, struct ui_progress *prog) |
| { |
| struct rb_root_cached *root; |
| struct rb_node *next; |
| struct hist_entry *n; |
| int ret; |
| |
| if (!hists__has(hists, need_collapse)) |
| return 0; |
| |
| hists->nr_entries = 0; |
| |
| root = hists__get_rotate_entries_in(hists); |
| |
| next = rb_first_cached(root); |
| |
| while (next) { |
| if (session_done()) |
| break; |
| n = rb_entry(next, struct hist_entry, rb_node_in); |
| next = rb_next(&n->rb_node_in); |
| |
| rb_erase_cached(&n->rb_node_in, root); |
| ret = hists__collapse_insert_entry(hists, &hists->entries_collapsed, n); |
| if (ret < 0) |
| return -1; |
| |
| if (ret) { |
| /* |
| * If it wasn't combined with one of the entries already |
| * collapsed, we need to apply the filters that may have |
| * been set by, say, the hist_browser. |
| */ |
| hists__apply_filters(hists, n); |
| } |
| if (prog) |
| ui_progress__update(prog, 1); |
| } |
| return 0; |
| } |
| |
| static int64_t hist_entry__sort(struct hist_entry *a, struct hist_entry *b) |
| { |
| struct hists *hists = a->hists; |
| struct perf_hpp_fmt *fmt; |
| int64_t cmp = 0; |
| |
| hists__for_each_sort_list(hists, fmt) { |
| if (perf_hpp__should_skip(fmt, a->hists)) |
| continue; |
| |
| cmp = fmt->sort(fmt, a, b); |
| if (cmp) |
| break; |
| } |
| |
| return cmp; |
| } |
| |
| static void hists__reset_filter_stats(struct hists *hists) |
| { |
| hists->nr_non_filtered_entries = 0; |
| hists->stats.total_non_filtered_period = 0; |
| } |
| |
| void hists__reset_stats(struct hists *hists) |
| { |
| hists->nr_entries = 0; |
| hists->stats.total_period = 0; |
| |
| hists__reset_filter_stats(hists); |
| } |
| |
| static void hists__inc_filter_stats(struct hists *hists, struct hist_entry *h) |
| { |
| hists->nr_non_filtered_entries++; |
| hists->stats.total_non_filtered_period += h->stat.period; |
| } |
| |
| void hists__inc_stats(struct hists *hists, struct hist_entry *h) |
| { |
| if (!h->filtered) |
| hists__inc_filter_stats(hists, h); |
| |
| hists->nr_entries++; |
| hists->stats.total_period += h->stat.period; |
| } |
| |
| static void hierarchy_recalc_total_periods(struct hists *hists) |
| { |
| struct rb_node *node; |
| struct hist_entry *he; |
| |
| node = rb_first_cached(&hists->entries); |
| |
| hists->stats.total_period = 0; |
| hists->stats.total_non_filtered_period = 0; |
| |
| /* |
| * recalculate total period using top-level entries only |
| * since lower level entries only see non-filtered entries |
| * but upper level entries have sum of both entries. |
| */ |
| while (node) { |
| he = rb_entry(node, struct hist_entry, rb_node); |
| node = rb_next(node); |
| |
| hists->stats.total_period += he->stat.period; |
| if (!he->filtered) |
| hists->stats.total_non_filtered_period += he->stat.period; |
| } |
| } |
| |
| static void hierarchy_insert_output_entry(struct rb_root_cached *root, |
| struct hist_entry *he) |
| { |
| struct rb_node **p = &root->rb_root.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| struct perf_hpp_fmt *fmt; |
| bool leftmost = true; |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node); |
| |
| if (hist_entry__sort(he, iter) > 0) |
| p = &parent->rb_left; |
| else { |
| p = &parent->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color_cached(&he->rb_node, root, leftmost); |
| |
| /* update column width of dynamic entry */ |
| perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) { |
| if (perf_hpp__is_dynamic_entry(fmt)) |
| fmt->sort(fmt, he, NULL); |
| } |
| } |
| |
| static void hists__hierarchy_output_resort(struct hists *hists, |
| struct ui_progress *prog, |
| struct rb_root_cached *root_in, |
| struct rb_root_cached *root_out, |
| u64 min_callchain_hits, |
| bool use_callchain) |
| { |
| struct rb_node *node; |
| struct hist_entry *he; |
| |
| *root_out = RB_ROOT_CACHED; |
| node = rb_first_cached(root_in); |
| |
| while (node) { |
| he = rb_entry(node, struct hist_entry, rb_node_in); |
| node = rb_next(node); |
| |
| hierarchy_insert_output_entry(root_out, he); |
| |
| if (prog) |
| ui_progress__update(prog, 1); |
| |
| hists->nr_entries++; |
| if (!he->filtered) { |
| hists->nr_non_filtered_entries++; |
| hists__calc_col_len(hists, he); |
| } |
| |
| if (!he->leaf) { |
| hists__hierarchy_output_resort(hists, prog, |
| &he->hroot_in, |
| &he->hroot_out, |
| min_callchain_hits, |
| use_callchain); |
| continue; |
| } |
| |
| if (!use_callchain) |
| continue; |
| |
| if (callchain_param.mode == CHAIN_GRAPH_REL) { |
| u64 total = he->stat.period; |
| |
| if (symbol_conf.cumulate_callchain) |
| total = he->stat_acc->period; |
| |
| min_callchain_hits = total * (callchain_param.min_percent / 100); |
| } |
| |
| callchain_param.sort(&he->sorted_chain, he->callchain, |
| min_callchain_hits, &callchain_param); |
| } |
| } |
| |
| static void __hists__insert_output_entry(struct rb_root_cached *entries, |
| struct hist_entry *he, |
| u64 min_callchain_hits, |
| bool use_callchain) |
| { |
| struct rb_node **p = &entries->rb_root.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| struct perf_hpp_fmt *fmt; |
| bool leftmost = true; |
| |
| if (use_callchain) { |
| if (callchain_param.mode == CHAIN_GRAPH_REL) { |
| u64 total = he->stat.period; |
| |
| if (symbol_conf.cumulate_callchain) |
| total = he->stat_acc->period; |
| |
| min_callchain_hits = total * (callchain_param.min_percent / 100); |
| } |
| callchain_param.sort(&he->sorted_chain, he->callchain, |
| min_callchain_hits, &callchain_param); |
| } |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node); |
| |
| if (hist_entry__sort(he, iter) > 0) |
| p = &(*p)->rb_left; |
| else { |
| p = &(*p)->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color_cached(&he->rb_node, entries, leftmost); |
| |
| perf_hpp_list__for_each_sort_list(&perf_hpp_list, fmt) { |
| if (perf_hpp__is_dynamic_entry(fmt) && |
| perf_hpp__defined_dynamic_entry(fmt, he->hists)) |
| fmt->sort(fmt, he, NULL); /* update column width */ |
| } |
| } |
| |
| static void output_resort(struct hists *hists, struct ui_progress *prog, |
| bool use_callchain, hists__resort_cb_t cb, |
| void *cb_arg) |
| { |
| struct rb_root_cached *root; |
| struct rb_node *next; |
| struct hist_entry *n; |
| u64 callchain_total; |
| u64 min_callchain_hits; |
| |
| callchain_total = hists->callchain_period; |
| if (symbol_conf.filter_relative) |
| callchain_total = hists->callchain_non_filtered_period; |
| |
| min_callchain_hits = callchain_total * (callchain_param.min_percent / 100); |
| |
| hists__reset_stats(hists); |
| hists__reset_col_len(hists); |
| |
| if (symbol_conf.report_hierarchy) { |
| hists__hierarchy_output_resort(hists, prog, |
| &hists->entries_collapsed, |
| &hists->entries, |
| min_callchain_hits, |
| use_callchain); |
| hierarchy_recalc_total_periods(hists); |
| return; |
| } |
| |
| if (hists__has(hists, need_collapse)) |
| root = &hists->entries_collapsed; |
| else |
| root = hists->entries_in; |
| |
| next = rb_first_cached(root); |
| hists->entries = RB_ROOT_CACHED; |
| |
| while (next) { |
| n = rb_entry(next, struct hist_entry, rb_node_in); |
| next = rb_next(&n->rb_node_in); |
| |
| if (cb && cb(n, cb_arg)) |
| continue; |
| |
| __hists__insert_output_entry(&hists->entries, n, min_callchain_hits, use_callchain); |
| hists__inc_stats(hists, n); |
| |
| if (!n->filtered) |
| hists__calc_col_len(hists, n); |
| |
| if (prog) |
| ui_progress__update(prog, 1); |
| } |
| } |
| |
| void evsel__output_resort_cb(struct evsel *evsel, struct ui_progress *prog, |
| hists__resort_cb_t cb, void *cb_arg) |
| { |
| bool use_callchain; |
| |
| if (evsel && symbol_conf.use_callchain && !symbol_conf.show_ref_callgraph) |
| use_callchain = evsel__has_callchain(evsel); |
| else |
| use_callchain = symbol_conf.use_callchain; |
| |
| use_callchain |= symbol_conf.show_branchflag_count; |
| |
| output_resort(evsel__hists(evsel), prog, use_callchain, cb, cb_arg); |
| } |
| |
| void evsel__output_resort(struct evsel *evsel, struct ui_progress *prog) |
| { |
| return evsel__output_resort_cb(evsel, prog, NULL, NULL); |
| } |
| |
| void hists__output_resort(struct hists *hists, struct ui_progress *prog) |
| { |
| output_resort(hists, prog, symbol_conf.use_callchain, NULL, NULL); |
| } |
| |
| void hists__output_resort_cb(struct hists *hists, struct ui_progress *prog, |
| hists__resort_cb_t cb) |
| { |
| output_resort(hists, prog, symbol_conf.use_callchain, cb, NULL); |
| } |
| |
| static bool can_goto_child(struct hist_entry *he, enum hierarchy_move_dir hmd) |
| { |
| if (he->leaf || hmd == HMD_FORCE_SIBLING) |
| return false; |
| |
| if (he->unfolded || hmd == HMD_FORCE_CHILD) |
| return true; |
| |
| return false; |
| } |
| |
| struct rb_node *rb_hierarchy_last(struct rb_node *node) |
| { |
| struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node); |
| |
| while (can_goto_child(he, HMD_NORMAL)) { |
| node = rb_last(&he->hroot_out.rb_root); |
| he = rb_entry(node, struct hist_entry, rb_node); |
| } |
| return node; |
| } |
| |
| struct rb_node *__rb_hierarchy_next(struct rb_node *node, enum hierarchy_move_dir hmd) |
| { |
| struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node); |
| |
| if (can_goto_child(he, hmd)) |
| node = rb_first_cached(&he->hroot_out); |
| else |
| node = rb_next(node); |
| |
| while (node == NULL) { |
| he = he->parent_he; |
| if (he == NULL) |
| break; |
| |
| node = rb_next(&he->rb_node); |
| } |
| return node; |
| } |
| |
| struct rb_node *rb_hierarchy_prev(struct rb_node *node) |
| { |
| struct hist_entry *he = rb_entry(node, struct hist_entry, rb_node); |
| |
| node = rb_prev(node); |
| if (node) |
| return rb_hierarchy_last(node); |
| |
| he = he->parent_he; |
| if (he == NULL) |
| return NULL; |
| |
| return &he->rb_node; |
| } |
| |
| bool hist_entry__has_hierarchy_children(struct hist_entry *he, float limit) |
| { |
| struct rb_node *node; |
| struct hist_entry *child; |
| float percent; |
| |
| if (he->leaf) |
| return false; |
| |
| node = rb_first_cached(&he->hroot_out); |
| child = rb_entry(node, struct hist_entry, rb_node); |
| |
| while (node && child->filtered) { |
| node = rb_next(node); |
| child = rb_entry(node, struct hist_entry, rb_node); |
| } |
| |
| if (node) |
| percent = hist_entry__get_percent_limit(child); |
| else |
| percent = 0; |
| |
| return node && percent >= limit; |
| } |
| |
| static void hists__remove_entry_filter(struct hists *hists, struct hist_entry *h, |
| enum hist_filter filter) |
| { |
| h->filtered &= ~(1 << filter); |
| |
| if (symbol_conf.report_hierarchy) { |
| struct hist_entry *parent = h->parent_he; |
| |
| while (parent) { |
| he_stat__add_stat(&parent->stat, &h->stat); |
| |
| parent->filtered &= ~(1 << filter); |
| |
| if (parent->filtered) |
| goto next; |
| |
| /* force fold unfiltered entry for simplicity */ |
| parent->unfolded = false; |
| parent->has_no_entry = false; |
| parent->row_offset = 0; |
| parent->nr_rows = 0; |
| next: |
| parent = parent->parent_he; |
| } |
| } |
| |
| if (h->filtered) |
| return; |
| |
| /* force fold unfiltered entry for simplicity */ |
| h->unfolded = false; |
| h->has_no_entry = false; |
| h->row_offset = 0; |
| h->nr_rows = 0; |
| |
| hists->stats.nr_non_filtered_samples += h->stat.nr_events; |
| |
| hists__inc_filter_stats(hists, h); |
| hists__calc_col_len(hists, h); |
| } |
| |
| |
| static bool hists__filter_entry_by_dso(struct hists *hists, |
| struct hist_entry *he) |
| { |
| if (hists->dso_filter != NULL && |
| (he->ms.map == NULL || he->ms.map->dso != hists->dso_filter)) { |
| he->filtered |= (1 << HIST_FILTER__DSO); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool hists__filter_entry_by_thread(struct hists *hists, |
| struct hist_entry *he) |
| { |
| if (hists->thread_filter != NULL && |
| he->thread != hists->thread_filter) { |
| he->filtered |= (1 << HIST_FILTER__THREAD); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool hists__filter_entry_by_symbol(struct hists *hists, |
| struct hist_entry *he) |
| { |
| if (hists->symbol_filter_str != NULL && |
| (!he->ms.sym || strstr(he->ms.sym->name, |
| hists->symbol_filter_str) == NULL)) { |
| he->filtered |= (1 << HIST_FILTER__SYMBOL); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static bool hists__filter_entry_by_socket(struct hists *hists, |
| struct hist_entry *he) |
| { |
| if ((hists->socket_filter > -1) && |
| (he->socket != hists->socket_filter)) { |
| he->filtered |= (1 << HIST_FILTER__SOCKET); |
| return true; |
| } |
| |
| return false; |
| } |
| |
| typedef bool (*filter_fn_t)(struct hists *hists, struct hist_entry *he); |
| |
| static void hists__filter_by_type(struct hists *hists, int type, filter_fn_t filter) |
| { |
| struct rb_node *nd; |
| |
| hists->stats.nr_non_filtered_samples = 0; |
| |
| hists__reset_filter_stats(hists); |
| hists__reset_col_len(hists); |
| |
| for (nd = rb_first_cached(&hists->entries); nd; nd = rb_next(nd)) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| if (filter(hists, h)) |
| continue; |
| |
| hists__remove_entry_filter(hists, h, type); |
| } |
| } |
| |
| static void resort_filtered_entry(struct rb_root_cached *root, |
| struct hist_entry *he) |
| { |
| struct rb_node **p = &root->rb_root.rb_node; |
| struct rb_node *parent = NULL; |
| struct hist_entry *iter; |
| struct rb_root_cached new_root = RB_ROOT_CACHED; |
| struct rb_node *nd; |
| bool leftmost = true; |
| |
| while (*p != NULL) { |
| parent = *p; |
| iter = rb_entry(parent, struct hist_entry, rb_node); |
| |
| if (hist_entry__sort(he, iter) > 0) |
| p = &(*p)->rb_left; |
| else { |
| p = &(*p)->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| rb_link_node(&he->rb_node, parent, p); |
| rb_insert_color_cached(&he->rb_node, root, leftmost); |
| |
| if (he->leaf || he->filtered) |
| return; |
| |
| nd = rb_first_cached(&he->hroot_out); |
| while (nd) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| nd = rb_next(nd); |
| rb_erase_cached(&h->rb_node, &he->hroot_out); |
| |
| resort_filtered_entry(&new_root, h); |
| } |
| |
| he->hroot_out = new_root; |
| } |
| |
| static void hists__filter_hierarchy(struct hists *hists, int type, const void *arg) |
| { |
| struct rb_node *nd; |
| struct rb_root_cached new_root = RB_ROOT_CACHED; |
| |
| hists->stats.nr_non_filtered_samples = 0; |
| |
| hists__reset_filter_stats(hists); |
| hists__reset_col_len(hists); |
| |
| nd = rb_first_cached(&hists->entries); |
| while (nd) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| int ret; |
| |
| ret = hist_entry__filter(h, type, arg); |
| |
| /* |
| * case 1. non-matching type |
| * zero out the period, set filter marker and move to child |
| */ |
| if (ret < 0) { |
| memset(&h->stat, 0, sizeof(h->stat)); |
| h->filtered |= (1 << type); |
| |
| nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_CHILD); |
| } |
| /* |
| * case 2. matched type (filter out) |
| * set filter marker and move to next |
| */ |
| else if (ret == 1) { |
| h->filtered |= (1 << type); |
| |
| nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING); |
| } |
| /* |
| * case 3. ok (not filtered) |
| * add period to hists and parents, erase the filter marker |
| * and move to next sibling |
| */ |
| else { |
| hists__remove_entry_filter(hists, h, type); |
| |
| nd = __rb_hierarchy_next(&h->rb_node, HMD_FORCE_SIBLING); |
| } |
| } |
| |
| hierarchy_recalc_total_periods(hists); |
| |
| /* |
| * resort output after applying a new filter since filter in a lower |
| * hierarchy can change periods in a upper hierarchy. |
| */ |
| nd = rb_first_cached(&hists->entries); |
| while (nd) { |
| struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); |
| |
| nd = rb_next(nd); |
| rb_erase_cached(&h->rb_node, &hists->entries); |
| |
| resort_filtered_entry(&new_root, h); |
| } |
| |
| hists->entries = new_root; |
| } |
| |
| void hists__filter_by_thread(struct hists *hists) |
| { |
| if (symbol_conf.report_hierarchy) |
| hists__filter_hierarchy(hists, HIST_FILTER__THREAD, |
| hists->thread_filter); |
| else |
| hists__filter_by_type(hists, HIST_FILTER__THREAD, |
| hists__filter_entry_by_thread); |
| } |
| |
| void hists__filter_by_dso(struct hists *hists) |
| { |
| if (symbol_conf.report_hierarchy) |
| hists__filter_hierarchy(hists, HIST_FILTER__DSO, |
| hists->dso_filter); |
| else |
| hists__filter_by_type(hists, HIST_FILTER__DSO, |
| hists__filter_entry_by_dso); |
| } |
| |
| void hists__filter_by_symbol(struct hists *hists) |
| { |
| if (symbol_conf.report_hierarchy) |
| hists__filter_hierarchy(hists, HIST_FILTER__SYMBOL, |
| hists->symbol_filter_str); |
| else |
| hists__filter_by_type(hists, HIST_FILTER__SYMBOL, |
| hists__filter_entry_by_symbol); |
| } |
| |
| void hists__filter_by_socket(struct hists *hists) |
| { |
| if (symbol_conf.report_hierarchy) |
| hists__filter_hierarchy(hists, HIST_FILTER__SOCKET, |
| &hists->socket_filter); |
| else |
| hists__filter_by_type(hists, HIST_FILTER__SOCKET, |
| hists__filter_entry_by_socket); |
| } |
| |
| void events_stats__inc(struct events_stats *stats, u32 type) |
| { |
| ++stats->nr_events[0]; |
| ++stats->nr_events[type]; |
| } |
| |
| static void hists_stats__inc(struct hists_stats *stats) |
| { |
| ++stats->nr_samples; |
| } |
| |
| void hists__inc_nr_events(struct hists *hists) |
| { |
| hists_stats__inc(&hists->stats); |
| } |
| |
| void hists__inc_nr_samples(struct hists *hists, bool filtered) |
| { |
| hists_stats__inc(&hists->stats); |
| if (!filtered) |
| hists->stats.nr_non_filtered_samples++; |
| } |
| |
| static struct hist_entry *hists__add_dummy_entry(struct hists *hists, |
| struct hist_entry *pair) |
| { |
| struct rb_root_cached *root; |
| struct rb_node **p; |
| struct rb_node *parent = NULL; |
| struct hist_entry *he; |
| int64_t cmp; |
| bool leftmost = true; |
| |
| if (hists__has(hists, need_collapse)) |
| root = &hists->entries_collapsed; |
| else |
| root = hists->entries_in; |
| |
| p = &root->rb_root.rb_node; |
| |
| while (*p != NULL) { |
| parent = *p; |
| he = rb_entry(parent, struct hist_entry, rb_node_in); |
| |
| cmp = hist_entry__collapse(he, pair); |
| |
| if (!cmp) |
| goto out; |
| |
| if (cmp < 0) |
| p = &(*p)->rb_left; |
| else { |
| p = &(*p)->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| he = hist_entry__new(pair, true); |
| if (he) { |
| memset(&he->stat, 0, sizeof(he->stat)); |
| he->hists = hists; |
| if (symbol_conf.cumulate_callchain) |
| memset(he->stat_acc, 0, sizeof(he->stat)); |
| rb_link_node(&he->rb_node_in, parent, p); |
| rb_insert_color_cached(&he->rb_node_in, root, leftmost); |
| hists__inc_stats(hists, he); |
| he->dummy = true; |
| } |
| out: |
| return he; |
| } |
| |
| static struct hist_entry *add_dummy_hierarchy_entry(struct hists *hists, |
| struct rb_root_cached *root, |
| struct hist_entry *pair) |
| { |
| struct rb_node **p; |
| struct rb_node *parent = NULL; |
| struct hist_entry *he; |
| struct perf_hpp_fmt *fmt; |
| bool leftmost = true; |
| |
| p = &root->rb_root.rb_node; |
| while (*p != NULL) { |
| int64_t cmp = 0; |
| |
| parent = *p; |
| he = rb_entry(parent, struct hist_entry, rb_node_in); |
| |
| perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) { |
| cmp = fmt->collapse(fmt, he, pair); |
| if (cmp) |
| break; |
| } |
| if (!cmp) |
| goto out; |
| |
| if (cmp < 0) |
| p = &parent->rb_left; |
| else { |
| p = &parent->rb_right; |
| leftmost = false; |
| } |
| } |
| |
| he = hist_entry__new(pair, true); |
| if (he) { |
| rb_link_node(&he->rb_node_in, parent, p); |
| rb_insert_color_cached(&he->rb_node_in, root, leftmost); |
| |
| he->dummy = true; |
| he->hists = hists; |
| memset(&he->stat, 0, sizeof(he->stat)); |
| hists__inc_stats(hists, he); |
| } |
| out: |
| return he; |
| } |
| |
| static struct hist_entry *hists__find_entry(struct hists *hists, |
| struct hist_entry *he) |
| { |
| struct rb_node *n; |
| |
| if (hists__has(hists, need_collapse)) |
| n = hists->entries_collapsed.rb_root.rb_node; |
| else |
| n = hists->entries_in->rb_root.rb_node; |
| |
| while (n) { |
| struct hist_entry *iter = rb_entry(n, struct hist_entry, rb_node_in); |
| int64_t cmp = hist_entry__collapse(iter, he); |
| |
| if (cmp < 0) |
| n = n->rb_left; |
| else if (cmp > 0) |
| n = n->rb_right; |
| else |
| return iter; |
| } |
| |
| return NULL; |
| } |
| |
| static struct hist_entry *hists__find_hierarchy_entry(struct rb_root_cached *root, |
| struct hist_entry *he) |
| { |
| struct rb_node *n = root->rb_root.rb_node; |
| |
| while (n) { |
| struct hist_entry *iter; |
| struct perf_hpp_fmt *fmt; |
| int64_t cmp = 0; |
| |
| iter = rb_entry(n, struct hist_entry, rb_node_in); |
| perf_hpp_list__for_each_sort_list(he->hpp_list, fmt) { |
| cmp = fmt->collapse(fmt, iter, he); |
| if (cmp) |
| break; |
| } |
| |
| if (cmp < 0) |
| n = n->rb_left; |
| else if (cmp > 0) |
| n = n->rb_right; |
| else |
| return iter; |
| } |
| |
| return NULL; |
| } |
| |
| static void hists__match_hierarchy(struct rb_root_cached *leader_root, |
| struct rb_root_cached *other_root) |
| { |
| struct rb_node *nd; |
| struct hist_entry *pos, *pair; |
| |
| for (nd = rb_first_cached(leader_root); nd; nd = rb_next(nd)) { |
| pos = rb_entry(nd, struct hist_entry, rb_node_in); |
| pair = hists__find_hierarchy_entry(other_root, pos); |
| |
| if (pair) { |
| hist_entry__add_pair(pair, pos); |
| hists__match_hierarchy(&pos->hroot_in, &pair->hroot_in); |
| } |
| } |
| } |
| |
| /* |
| * Look for pairs to link to the leader buckets (hist_entries): |
| */ |
| void hists__match(struct hists *leader, struct hists *other) |
| { |
| struct rb_root_cached *root; |
| struct rb_node *nd; |
| struct hist_entry *pos, *pair; |
| |
| if (symbol_conf.report_hierarchy) { |
| /* hierarchy report always collapses entries */ |
| return hists__match_hierarchy(&leader->entries_collapsed, |
| &other->entries_collapsed); |
| } |
| |
| if (hists__has(leader, need_collapse)) |
| root = &leader->entries_collapsed; |
| else |
| root = leader->entries_in; |
| |
| for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) { |
| pos = rb_entry(nd, struct hist_entry, rb_node_in); |
| pair = hists__find_entry(other, pos); |
| |
| if (pair) |
| hist_entry__add_pair(pair, pos); |
| } |
| } |
| |
| static int hists__link_hierarchy(struct hists *leader_hists, |
| struct hist_entry *parent, |
| struct rb_root_cached *leader_root, |
| struct rb_root_cached *other_root) |
| { |
| struct rb_node *nd; |
| struct hist_entry *pos, *leader; |
| |
| for (nd = rb_first_cached(other_root); nd; nd = rb_next(nd)) { |
| pos = rb_entry(nd, struct hist_entry, rb_node_in); |
| |
| if (hist_entry__has_pairs(pos)) { |
| bool found = false; |
| |
| list_for_each_entry(leader, &pos->pairs.head, pairs.node) { |
| if (leader->hists == leader_hists) { |
| found = true; |
| break; |
| } |
| } |
| if (!found) |
| return -1; |
| } else { |
| leader = add_dummy_hierarchy_entry(leader_hists, |
| leader_root, pos); |
| if (leader == NULL) |
| return -1; |
| |
| /* do not point parent in the pos */ |
| leader->parent_he = parent; |
| |
| hist_entry__add_pair(pos, leader); |
| } |
| |
| if (!pos->leaf) { |
| if (hists__link_hierarchy(leader_hists, leader, |
| &leader->hroot_in, |
| &pos->hroot_in) < 0) |
| return -1; |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * Look for entries in the other hists that are not present in the leader, if |
| * we find them, just add a dummy entry on the leader hists, with period=0, |
| * nr_events=0, to serve as the list header. |
| */ |
| int hists__link(struct hists *leader, struct hists *other) |
| { |
| struct rb_root_cached *root; |
| struct rb_node *nd; |
| struct hist_entry *pos, *pair; |
| |
| if (symbol_conf.report_hierarchy) { |
| /* hierarchy report always collapses entries */ |
| return hists__link_hierarchy(leader, NULL, |
| &leader->entries_collapsed, |
| &other->entries_collapsed); |
| } |
| |
| if (hists__has(other, need_collapse)) |
| root = &other->entries_collapsed; |
| else |
| root = other->entries_in; |
| |
| for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) { |
| pos = rb_entry(nd, struct hist_entry, rb_node_in); |
| |
| if (!hist_entry__has_pairs(pos)) { |
| pair = hists__add_dummy_entry(leader, pos); |
| if (pair == NULL) |
| return -1; |
| hist_entry__add_pair(pos, pair); |
| } |
| } |
| |
| return 0; |
| } |
| |
| int hists__unlink(struct hists *hists) |
| { |
| struct rb_root_cached *root; |
| struct rb_node *nd; |
| struct hist_entry *pos; |
| |
| if (hists__has(hists, need_collapse)) |
| root = &hists->entries_collapsed; |
| else |
| root = hists->entries_in; |
| |
| for (nd = rb_first_cached(root); nd; nd = rb_next(nd)) { |
| pos = rb_entry(nd, struct hist_entry, rb_node_in); |
| list_del_init(&pos->pairs.node); |
| } |
| |
| return 0; |
| } |
| |
| void hist__account_cycles(struct branch_stack *bs, struct addr_location *al, |
| struct perf_sample *sample, bool nonany_branch_mode, |
| u64 *total_cycles) |
| { |
| struct branch_info *bi; |
| struct branch_entry *entries = perf_sample__branch_entries(sample); |
| |
| /* If we have branch cycles always annotate them. */ |
| if (bs && bs->nr && entries[0].flags.cycles) { |
| int i; |
| |
| bi = sample__resolve_bstack(sample, al); |
| if (bi) { |
| struct addr_map_symbol *prev = NULL; |
| |
| /* |
| * Ignore errors, still want to process the |
| * other entries. |
| * |
| * For non standard branch modes always |
| * force no IPC (prev == NULL) |
| * |
| * Note that perf stores branches reversed from |
| * program order! |
| */ |
| for (i = bs->nr - 1; i >= 0; i--) { |
| addr_map_symbol__account_cycles(&bi[i].from, |
| nonany_branch_mode ? NULL : prev, |
| bi[i].flags.cycles); |
| prev = &bi[i].to; |
| |
| if (total_cycles) |
| *total_cycles += bi[i].flags.cycles; |
| } |
| free(bi); |
| } |
| } |
| } |
| |
| size_t evlist__fprintf_nr_events(struct evlist *evlist, FILE *fp, |
| bool skip_empty) |
| { |
| struct evsel *pos; |
| size_t ret = 0; |
| |
| evlist__for_each_entry(evlist, pos) { |
| struct hists *hists = evsel__hists(pos); |
| |
| if (skip_empty && !hists->stats.nr_samples) |
| continue; |
| |
| ret += fprintf(fp, "%s stats:\n", evsel__name(pos)); |
| ret += fprintf(fp, "%16s events: %10d\n", |
| "SAMPLE", hists->stats.nr_samples); |
| } |
| |
| return ret; |
| } |
| |
| |
| u64 hists__total_period(struct hists *hists) |
| { |
| return symbol_conf.filter_relative ? hists->stats.total_non_filtered_period : |
| hists->stats.total_period; |
| } |
| |
| int __hists__scnprintf_title(struct hists *hists, char *bf, size_t size, bool show_freq) |
| { |
| char unit; |
| int printed; |
| const struct dso *dso = hists->dso_filter; |
| struct thread *thread = hists->thread_filter; |
| int socket_id = hists->socket_filter; |
| unsigned long nr_samples = hists->stats.nr_samples; |
| u64 nr_events = hists->stats.total_period; |
| struct evsel *evsel = hists_to_evsel(hists); |
| const char *ev_name = evsel__name(evsel); |
| char buf[512], sample_freq_str[64] = ""; |
| size_t buflen = sizeof(buf); |
| char ref[30] = " show reference callgraph, "; |
| bool enable_ref = false; |
| |
| if (symbol_conf.filter_relative) { |
| nr_samples = hists->stats.nr_non_filtered_samples; |
| nr_events = hists->stats.total_non_filtered_period; |
| } |
| |
| if (evsel__is_group_event(evsel)) { |
| struct evsel *pos; |
| |
| evsel__group_desc(evsel, buf, buflen); |
| ev_name = buf; |
| |
| for_each_group_member(pos, evsel) { |
| struct hists *pos_hists = evsel__hists(pos); |
| |
| if (symbol_conf.filter_relative) { |
| nr_samples += pos_hists->stats.nr_non_filtered_samples; |
| nr_events += pos_hists->stats.total_non_filtered_period; |
| } else { |
| nr_samples += pos_hists->stats.nr_samples; |
| nr_events += pos_hists->stats.total_period; |
| } |
| } |
| } |
| |
| if (symbol_conf.show_ref_callgraph && |
| strstr(ev_name, "call-graph=no")) |
| enable_ref = true; |
| |
| if (show_freq) |
| scnprintf(sample_freq_str, sizeof(sample_freq_str), " %d Hz,", evsel->core.attr.sample_freq); |
| |
| nr_samples = convert_unit(nr_samples, &unit); |
| printed = scnprintf(bf, size, |
| "Samples: %lu%c of event%s '%s',%s%sEvent count (approx.): %" PRIu64, |
| nr_samples, unit, evsel->core.nr_members > 1 ? "s" : "", |
| ev_name, sample_freq_str, enable_ref ? ref : " ", nr_events); |
| |
| |
| if (hists->uid_filter_str) |
| printed += snprintf(bf + printed, size - printed, |
| ", UID: %s", hists->uid_filter_str); |
| if (thread) { |
| if (hists__has(hists, thread)) { |
| printed += scnprintf(bf + printed, size - printed, |
| ", Thread: %s(%d)", |
| (thread->comm_set ? thread__comm_str(thread) : ""), |
| thread->tid); |
| } else { |
| printed += scnprintf(bf + printed, size - printed, |
| ", Thread: %s", |
| (thread->comm_set ? thread__comm_str(thread) : "")); |
| } |
| } |
| if (dso) |
| printed += scnprintf(bf + printed, size - printed, |
| ", DSO: %s", dso->short_name); |
| if (socket_id > -1) |
| printed += scnprintf(bf + printed, size - printed, |
| ", Processor Socket: %d", socket_id); |
| |
| return printed; |
| } |
| |
| int parse_filter_percentage(const struct option *opt __maybe_unused, |
| const char *arg, int unset __maybe_unused) |
| { |
| if (!strcmp(arg, "relative")) |
| symbol_conf.filter_relative = true; |
| else if (!strcmp(arg, "absolute")) |
| symbol_conf.filter_relative = false; |
| else { |
| pr_debug("Invalid percentage: %s\n", arg); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| int perf_hist_config(const char *var, const char *value) |
| { |
| if (!strcmp(var, "hist.percentage")) |
| return parse_filter_percentage(NULL, value, 0); |
| |
| return 0; |
| } |
| |
| int __hists__init(struct hists *hists, struct perf_hpp_list *hpp_list) |
| { |
| memset(hists, 0, sizeof(*hists)); |
| hists->entries_in_array[0] = hists->entries_in_array[1] = RB_ROOT_CACHED; |
| hists->entries_in = &hists->entries_in_array[0]; |
| hists->entries_collapsed = RB_ROOT_CACHED; |
| hists->entries = RB_ROOT_CACHED; |
| pthread_mutex_init(&hists->lock, NULL); |
| hists->socket_filter = -1; |
| hists->hpp_list = hpp_list; |
| INIT_LIST_HEAD(&hists->hpp_formats); |
| return 0; |
| } |
| |
| static void hists__delete_remaining_entries(struct rb_root_cached *root) |
| { |
| struct rb_node *node; |
| struct hist_entry *he; |
| |
| while (!RB_EMPTY_ROOT(&root->rb_root)) { |
| node = rb_first_cached(root); |
| rb_erase_cached(node, root); |
| |
| he = rb_entry(node, struct hist_entry, rb_node_in); |
| hist_entry__delete(he); |
| } |
| } |
| |
| static void hists__delete_all_entries(struct hists *hists) |
| { |
| hists__delete_entries(hists); |
| hists__delete_remaining_entries(&hists->entries_in_array[0]); |
| hists__delete_remaining_entries(&hists->entries_in_array[1]); |
| hists__delete_remaining_entries(&hists->entries_collapsed); |
| } |
| |
| static void hists_evsel__exit(struct evsel *evsel) |
| { |
| struct hists *hists = evsel__hists(evsel); |
| struct perf_hpp_fmt *fmt, *pos; |
| struct perf_hpp_list_node *node, *tmp; |
| |
| hists__delete_all_entries(hists); |
| |
| list_for_each_entry_safe(node, tmp, &hists->hpp_formats, list) { |
| perf_hpp_list__for_each_format_safe(&node->hpp, fmt, pos) { |
| list_del_init(&fmt->list); |
| free(fmt); |
| } |
| list_del_init(&node->list); |
| free(node); |
| } |
| } |
| |
| static int hists_evsel__init(struct evsel *evsel) |
| { |
| struct hists *hists = evsel__hists(evsel); |
| |
| __hists__init(hists, &perf_hpp_list); |
| return 0; |
| } |
| |
| /* |
| * XXX We probably need a hists_evsel__exit() to free the hist_entries |
| * stored in the rbtree... |
| */ |
| |
| int hists__init(void) |
| { |
| int err = evsel__object_config(sizeof(struct hists_evsel), |
| hists_evsel__init, hists_evsel__exit); |
| if (err) |
| fputs("FATAL ERROR: Couldn't setup hists class\n", stderr); |
| |
| return err; |
| } |
| |
| void perf_hpp_list__init(struct perf_hpp_list *list) |
| { |
| INIT_LIST_HEAD(&list->fields); |
| INIT_LIST_HEAD(&list->sorts); |
| } |