| #!/usr/bin/env python |
| # SPDX-License-Identifier: GPL-2.0-only |
| # -*- coding: utf-8 -*- |
| # |
| """ This utility can be used to debug and tune the performance of the |
| intel_pstate driver. This utility can be used in two ways: |
| - If there is Linux trace file with pstate_sample events enabled, then |
| this utility can parse the trace file and generate performance plots. |
| - If user has not specified a trace file as input via command line parameters, |
| then this utility enables and collects trace data for a user specified interval |
| and generates performance plots. |
| |
| Prerequisites: |
| Python version 2.7.x or higher |
| gnuplot 5.0 or higher |
| gnuplot-py 1.8 or higher |
| (Most of the distributions have these required packages. They may be called |
| gnuplot-py, phython-gnuplot or phython3-gnuplot, gnuplot-nox, ... ) |
| |
| HWP (Hardware P-States are disabled) |
| Kernel config for Linux trace is enabled |
| |
| see print_help(): for Usage and Output details |
| |
| """ |
| from __future__ import print_function |
| from datetime import datetime |
| import subprocess |
| import os |
| import time |
| import re |
| import signal |
| import sys |
| import getopt |
| import Gnuplot |
| from numpy import * |
| from decimal import * |
| |
| __author__ = "Srinivas Pandruvada" |
| __copyright__ = " Copyright (c) 2017, Intel Corporation. " |
| __license__ = "GPL version 2" |
| |
| |
| MAX_CPUS = 256 |
| |
| # Define the csv file columns |
| C_COMM = 18 |
| C_GHZ = 17 |
| C_ELAPSED = 16 |
| C_SAMPLE = 15 |
| C_DURATION = 14 |
| C_LOAD = 13 |
| C_BOOST = 12 |
| C_FREQ = 11 |
| C_TSC = 10 |
| C_APERF = 9 |
| C_MPERF = 8 |
| C_TO = 7 |
| C_FROM = 6 |
| C_SCALED = 5 |
| C_CORE = 4 |
| C_USEC = 3 |
| C_SEC = 2 |
| C_CPU = 1 |
| |
| global sample_num, last_sec_cpu, last_usec_cpu, start_time, testname, trace_file |
| |
| # 11 digits covers uptime to 115 days |
| getcontext().prec = 11 |
| |
| sample_num =0 |
| last_sec_cpu = [0] * MAX_CPUS |
| last_usec_cpu = [0] * MAX_CPUS |
| |
| def print_help(driver_name): |
| print('%s_tracer.py:'%driver_name) |
| print(' Usage:') |
| print(' If the trace file is available, then to simply parse and plot, use (sudo not required):') |
| print(' ./%s_tracer.py [-c cpus] -t <trace_file> -n <test_name>'%driver_name) |
| print(' Or') |
| print(' ./%s_tracer.py [--cpu cpus] ---trace_file <trace_file> --name <test_name>'%driver_name) |
| print(' To generate trace file, parse and plot, use (sudo required):') |
| print(' sudo ./%s_tracer.py [-c cpus] -i <interval> -n <test_name> -m <kbytes>'%driver_name) |
| print(' Or') |
| print(' sudo ./%s_tracer.py [--cpu cpus] --interval <interval> --name <test_name> --memory <kbytes>'%driver_name) |
| print(' Optional argument:') |
| print(' cpus: comma separated list of CPUs') |
| print(' kbytes: Kilo bytes of memory per CPU to allocate to the trace buffer. Default: 10240') |
| print(' Output:') |
| print(' If not already present, creates a "results/test_name" folder in the current working directory with:') |
| print(' cpu.csv - comma seperated values file with trace contents and some additional calculations.') |
| print(' cpu???.csv - comma seperated values file for CPU number ???.') |
| print(' *.png - a variety of PNG format plot files created from the trace contents and the additional calculations.') |
| print(' Notes:') |
| print(' Avoid the use of _ (underscore) in test names, because in gnuplot it is a subscript directive.') |
| print(' Maximum number of CPUs is {0:d}. If there are more the script will abort with an error.'.format(MAX_CPUS)) |
| print(' Off-line CPUs cause the script to list some warnings, and create some empty files. Use the CPU mask feature for a clean run.') |
| print(' Empty y range warnings for autoscaled plots can occur and can be ignored.') |
| |
| def plot_perf_busy_with_sample(cpu_index): |
| """ Plot method to per cpu information """ |
| |
| file_name = 'cpu{:0>3}.csv'.format(cpu_index) |
| if os.path.exists(file_name): |
| output_png = "cpu%03d_perf_busy_vs_samples.png" % cpu_index |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y1 range |
| g_plot('set y2range [0:200]') |
| g_plot('set y2tics 0, 10') |
| g_plot('set title "{} : cpu perf busy vs. sample : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) |
| # Override common |
| g_plot('set xlabel "Samples"') |
| g_plot('set ylabel "P-State"') |
| g_plot('set y2label "Scaled Busy/performance/io-busy(%)"') |
| set_4_plot_linestyles(g_plot) |
| g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_SAMPLE, C_CORE)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_SAMPLE, C_SCALED)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_SAMPLE, C_BOOST)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_SAMPLE, C_TO)) |
| |
| def plot_perf_busy(cpu_index): |
| """ Plot some per cpu information """ |
| |
| file_name = 'cpu{:0>3}.csv'.format(cpu_index) |
| if os.path.exists(file_name): |
| output_png = "cpu%03d_perf_busy.png" % cpu_index |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y1 range |
| g_plot('set y2range [0:200]') |
| g_plot('set y2tics 0, 10') |
| g_plot('set title "{} : perf busy : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) |
| g_plot('set ylabel "P-State"') |
| g_plot('set y2label "Scaled Busy/performance/io-busy(%)"') |
| set_4_plot_linestyles(g_plot) |
| g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y2 title "performance",\\'.format(C_ELAPSED, C_CORE)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 2 axis x1y2 title "scaled-busy",\\'.format(C_ELAPSED, C_SCALED)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 3 axis x1y2 title "io-boost",\\'.format(C_ELAPSED, C_BOOST)) |
| g_plot('"' + file_name + '" using {:d}:{:d} with linespoints linestyle 4 axis x1y1 title "P-State"'.format(C_ELAPSED, C_TO)) |
| |
| def plot_durations(cpu_index): |
| """ Plot per cpu durations """ |
| |
| file_name = 'cpu{:0>3}.csv'.format(cpu_index) |
| if os.path.exists(file_name): |
| output_png = "cpu%03d_durations.png" % cpu_index |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set title "{} : durations : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) |
| g_plot('set ylabel "Timer Duration (MilliSeconds)"') |
| # override common |
| g_plot('set key off') |
| set_4_plot_linestyles(g_plot) |
| g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_DURATION)) |
| |
| def plot_loads(cpu_index): |
| """ Plot per cpu loads """ |
| |
| file_name = 'cpu{:0>3}.csv'.format(cpu_index) |
| if os.path.exists(file_name): |
| output_png = "cpu%03d_loads.png" % cpu_index |
| g_plot = common_all_gnuplot_settings(output_png) |
| g_plot('set yrange [0:100]') |
| g_plot('set ytics 0, 10') |
| g_plot('set title "{} : loads : CPU {:0>3} : {:%F %H:%M}"'.format(testname, cpu_index, datetime.now())) |
| g_plot('set ylabel "CPU load (percent)"') |
| # override common |
| g_plot('set key off') |
| set_4_plot_linestyles(g_plot) |
| g_plot('plot "' + file_name + '" using {:d}:{:d} with linespoints linestyle 1 axis x1y1'.format(C_ELAPSED, C_LOAD)) |
| |
| def plot_pstate_cpu_with_sample(): |
| """ Plot all cpu information """ |
| |
| if os.path.exists('cpu.csv'): |
| output_png = 'all_cpu_pstates_vs_samples.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| # override common |
| g_plot('set xlabel "Samples"') |
| g_plot('set ylabel "P-State"') |
| g_plot('set title "{} : cpu pstate vs. sample : {:%F %H:%M}"'.format(testname, datetime.now())) |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_SAMPLE, C_TO) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_pstate_cpu(): |
| """ Plot all cpu information from csv files """ |
| |
| output_png = 'all_cpu_pstates.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set ylabel "P-State"') |
| g_plot('set title "{} : cpu pstates : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| # the following command is really cool, but doesn't work with the CPU masking option because it aborts on the first missing file. |
| # plot_str = 'plot for [i=0:*] file=sprintf("cpu%03d.csv",i) title_s=sprintf("cpu%03d",i) file using 16:7 pt 7 ps 1 title title_s' |
| # |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_TO) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_load_cpu(): |
| """ Plot all cpu loads """ |
| |
| output_png = 'all_cpu_loads.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| g_plot('set yrange [0:100]') |
| g_plot('set ylabel "CPU load (percent)"') |
| g_plot('set title "{} : cpu loads : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_LOAD) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_frequency_cpu(): |
| """ Plot all cpu frequencies """ |
| |
| output_png = 'all_cpu_frequencies.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set ylabel "CPU Frequency (GHz)"') |
| g_plot('set title "{} : cpu frequencies : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_FREQ) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_duration_cpu(): |
| """ Plot all cpu durations """ |
| |
| output_png = 'all_cpu_durations.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set ylabel "Timer Duration (MilliSeconds)"') |
| g_plot('set title "{} : cpu durations : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_DURATION) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_scaled_cpu(): |
| """ Plot all cpu scaled busy """ |
| |
| output_png = 'all_cpu_scaled.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set ylabel "Scaled Busy (Unitless)"') |
| g_plot('set title "{} : cpu scaled busy : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_SCALED) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_boost_cpu(): |
| """ Plot all cpu IO Boosts """ |
| |
| output_png = 'all_cpu_boost.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| g_plot('set yrange [0:100]') |
| g_plot('set ylabel "CPU IO Boost (percent)"') |
| g_plot('set title "{} : cpu io boost : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_BOOST) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def plot_ghz_cpu(): |
| """ Plot all cpu tsc ghz """ |
| |
| output_png = 'all_cpu_ghz.png' |
| g_plot = common_all_gnuplot_settings(output_png) |
| # autoscale this one, no set y range |
| g_plot('set ylabel "TSC Frequency (GHz)"') |
| g_plot('set title "{} : cpu TSC Frequencies (Sanity check calculation) : {:%F %H:%M}"'.format(testname, datetime.now())) |
| |
| title_list = subprocess.check_output('ls cpu???.csv | sed -e \'s/.csv//\'',shell=True).decode('utf-8').replace('\n', ' ') |
| plot_str = "plot for [i in title_list] i.'.csv' using {:d}:{:d} pt 7 ps 1 title i".format(C_ELAPSED, C_GHZ) |
| g_plot('title_list = "{}"'.format(title_list)) |
| g_plot(plot_str) |
| |
| def common_all_gnuplot_settings(output_png): |
| """ common gnuplot settings for multiple CPUs one one graph. """ |
| |
| g_plot = common_gnuplot_settings() |
| g_plot('set output "' + output_png + '"') |
| return(g_plot) |
| |
| def common_gnuplot_settings(): |
| """ common gnuplot settings. """ |
| |
| g_plot = Gnuplot.Gnuplot(persist=1) |
| # The following line is for rigor only. It seems to be assumed for .csv files |
| g_plot('set datafile separator \",\"') |
| g_plot('set ytics nomirror') |
| g_plot('set xtics nomirror') |
| g_plot('set xtics font ", 10"') |
| g_plot('set ytics font ", 10"') |
| g_plot('set tics out scale 1.0') |
| g_plot('set grid') |
| g_plot('set key out horiz') |
| g_plot('set key bot center') |
| g_plot('set key samplen 2 spacing .8 font ", 9"') |
| g_plot('set term png size 1200, 600') |
| g_plot('set title font ", 11"') |
| g_plot('set ylabel font ", 10"') |
| g_plot('set xlabel font ", 10"') |
| g_plot('set xlabel offset 0, 0.5') |
| g_plot('set xlabel "Elapsed Time (Seconds)"') |
| return(g_plot) |
| |
| def set_4_plot_linestyles(g_plot): |
| """ set the linestyles used for 4 plots in 1 graphs. """ |
| |
| g_plot('set style line 1 linetype 1 linecolor rgb "green" pointtype -1') |
| g_plot('set style line 2 linetype 1 linecolor rgb "red" pointtype -1') |
| g_plot('set style line 3 linetype 1 linecolor rgb "purple" pointtype -1') |
| g_plot('set style line 4 linetype 1 linecolor rgb "blue" pointtype -1') |
| |
| def store_csv(cpu_int, time_pre_dec, time_post_dec, core_busy, scaled, _from, _to, mperf, aperf, tsc, freq_ghz, io_boost, common_comm, load, duration_ms, sample_num, elapsed_time, tsc_ghz, cpu_mask): |
| """ Store master csv file information """ |
| |
| global graph_data_present |
| |
| if cpu_mask[cpu_int] == 0: |
| return |
| |
| try: |
| f_handle = open('cpu.csv', 'a') |
| string_buffer = "CPU_%03u, %05u, %06u, %u, %u, %u, %u, %u, %u, %u, %.4f, %u, %.2f, %.3f, %u, %.3f, %.3f, %s\n" % (cpu_int, int(time_pre_dec), int(time_post_dec), int(core_busy), int(scaled), int(_from), int(_to), int(mperf), int(aperf), int(tsc), freq_ghz, int(io_boost), load, duration_ms, sample_num, elapsed_time, tsc_ghz, common_comm) |
| f_handle.write(string_buffer); |
| f_handle.close() |
| except: |
| print('IO error cpu.csv') |
| return |
| |
| graph_data_present = True; |
| |
| def split_csv(current_max_cpu, cpu_mask): |
| """ seperate the all csv file into per CPU csv files. """ |
| |
| if os.path.exists('cpu.csv'): |
| for index in range(0, current_max_cpu + 1): |
| if cpu_mask[int(index)] != 0: |
| os.system('grep -m 1 common_cpu cpu.csv > cpu{:0>3}.csv'.format(index)) |
| os.system('grep CPU_{:0>3} cpu.csv >> cpu{:0>3}.csv'.format(index, index)) |
| |
| def fix_ownership(path): |
| """Change the owner of the file to SUDO_UID, if required""" |
| |
| uid = os.environ.get('SUDO_UID') |
| gid = os.environ.get('SUDO_GID') |
| if uid is not None: |
| os.chown(path, int(uid), int(gid)) |
| |
| def cleanup_data_files(): |
| """ clean up existing data files """ |
| |
| if os.path.exists('cpu.csv'): |
| os.remove('cpu.csv') |
| f_handle = open('cpu.csv', 'a') |
| f_handle.write('common_cpu, common_secs, common_usecs, core_busy, scaled_busy, from, to, mperf, aperf, tsc, freq, boost, load, duration_ms, sample_num, elapsed_time, tsc_ghz, common_comm') |
| f_handle.write('\n') |
| f_handle.close() |
| |
| def clear_trace_file(): |
| """ Clear trace file """ |
| |
| try: |
| f_handle = open('/sys/kernel/tracing/trace', 'w') |
| f_handle.close() |
| except: |
| print('IO error clearing trace file ') |
| sys.exit(2) |
| |
| def enable_trace(trace_file): |
| """ Enable trace """ |
| |
| try: |
| open(trace_file,'w').write("1") |
| except: |
| print('IO error enabling trace ') |
| sys.exit(2) |
| |
| def disable_trace(trace_file): |
| """ Disable trace """ |
| |
| try: |
| open(trace_file, 'w').write("0") |
| except: |
| print('IO error disabling trace ') |
| sys.exit(2) |
| |
| def set_trace_buffer_size(memory): |
| """ Set trace buffer size """ |
| |
| try: |
| with open('/sys/kernel/tracing/buffer_size_kb', 'w') as fp: |
| fp.write(memory) |
| except: |
| print('IO error setting trace buffer size ') |
| sys.exit(2) |
| |
| def free_trace_buffer(): |
| """ Free the trace buffer memory """ |
| |
| try: |
| open('/sys/kernel/tracing/buffer_size_kb' |
| , 'w').write("1") |
| except: |
| print('IO error freeing trace buffer ') |
| sys.exit(2) |
| |
| def read_trace_data(filename, cpu_mask): |
| """ Read and parse trace data """ |
| |
| global current_max_cpu |
| global sample_num, last_sec_cpu, last_usec_cpu, start_time |
| |
| try: |
| data = open(filename, 'r').read() |
| except: |
| print('Error opening ', filename) |
| sys.exit(2) |
| |
| for line in data.splitlines(): |
| search_obj = \ |
| re.search(r'(^(.*?)\[)((\d+)[^\]])(.*?)(\d+)([.])(\d+)(.*?core_busy=)(\d+)(.*?scaled=)(\d+)(.*?from=)(\d+)(.*?to=)(\d+)(.*?mperf=)(\d+)(.*?aperf=)(\d+)(.*?tsc=)(\d+)(.*?freq=)(\d+)' |
| , line) |
| |
| if search_obj: |
| cpu = search_obj.group(3) |
| cpu_int = int(cpu) |
| cpu = str(cpu_int) |
| |
| time_pre_dec = search_obj.group(6) |
| time_post_dec = search_obj.group(8) |
| core_busy = search_obj.group(10) |
| scaled = search_obj.group(12) |
| _from = search_obj.group(14) |
| _to = search_obj.group(16) |
| mperf = search_obj.group(18) |
| aperf = search_obj.group(20) |
| tsc = search_obj.group(22) |
| freq = search_obj.group(24) |
| common_comm = search_obj.group(2).replace(' ', '') |
| |
| # Not all kernel versions have io_boost field |
| io_boost = '0' |
| search_obj = re.search(r'.*?io_boost=(\d+)', line) |
| if search_obj: |
| io_boost = search_obj.group(1) |
| |
| if sample_num == 0 : |
| start_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) |
| sample_num += 1 |
| |
| if last_sec_cpu[cpu_int] == 0 : |
| last_sec_cpu[cpu_int] = time_pre_dec |
| last_usec_cpu[cpu_int] = time_post_dec |
| else : |
| duration_us = (int(time_pre_dec) - int(last_sec_cpu[cpu_int])) * 1000000 + (int(time_post_dec) - int(last_usec_cpu[cpu_int])) |
| duration_ms = Decimal(duration_us) / Decimal(1000) |
| last_sec_cpu[cpu_int] = time_pre_dec |
| last_usec_cpu[cpu_int] = time_post_dec |
| elapsed_time = Decimal(time_pre_dec) + Decimal(time_post_dec) / Decimal(1000000) - start_time |
| load = Decimal(int(mperf)*100)/ Decimal(tsc) |
| freq_ghz = Decimal(freq)/Decimal(1000000) |
| # Sanity check calculation, typically anomalies indicate missed samples |
| # However, check for 0 (should never occur) |
| tsc_ghz = Decimal(0) |
| if duration_ms != Decimal(0) : |
| tsc_ghz = Decimal(tsc)/duration_ms/Decimal(1000000) |
| store_csv(cpu_int, time_pre_dec, time_post_dec, core_busy, scaled, _from, _to, mperf, aperf, tsc, freq_ghz, io_boost, common_comm, load, duration_ms, sample_num, elapsed_time, tsc_ghz, cpu_mask) |
| |
| if cpu_int > current_max_cpu: |
| current_max_cpu = cpu_int |
| # End of for each trace line loop |
| # Now seperate the main overall csv file into per CPU csv files. |
| split_csv(current_max_cpu, cpu_mask) |
| |
| def signal_handler(signal, frame): |
| print(' SIGINT: Forcing cleanup before exit.') |
| if interval: |
| disable_trace(trace_file) |
| clear_trace_file() |
| # Free the memory |
| free_trace_buffer() |
| sys.exit(0) |
| |
| if __name__ == "__main__": |
| trace_file = "/sys/kernel/tracing/events/power/pstate_sample/enable" |
| signal.signal(signal.SIGINT, signal_handler) |
| |
| interval = "" |
| filename = "" |
| cpu_list = "" |
| testname = "" |
| memory = "10240" |
| graph_data_present = False; |
| |
| valid1 = False |
| valid2 = False |
| |
| cpu_mask = zeros((MAX_CPUS,), dtype=int) |
| |
| try: |
| opts, args = getopt.getopt(sys.argv[1:],"ht:i:c:n:m:",["help","trace_file=","interval=","cpu=","name=","memory="]) |
| except getopt.GetoptError: |
| print_help('intel_pstate') |
| sys.exit(2) |
| for opt, arg in opts: |
| if opt == '-h': |
| print_help('intel_pstate') |
| sys.exit() |
| elif opt in ("-t", "--trace_file"): |
| valid1 = True |
| location = os.path.realpath(os.path.join(os.getcwd(), os.path.dirname(__file__))) |
| filename = os.path.join(location, arg) |
| elif opt in ("-i", "--interval"): |
| valid1 = True |
| interval = arg |
| elif opt in ("-c", "--cpu"): |
| cpu_list = arg |
| elif opt in ("-n", "--name"): |
| valid2 = True |
| testname = arg |
| elif opt in ("-m", "--memory"): |
| memory = arg |
| |
| if not (valid1 and valid2): |
| print_help('intel_pstate') |
| sys.exit() |
| |
| if cpu_list: |
| for p in re.split("[,]", cpu_list): |
| if int(p) < MAX_CPUS : |
| cpu_mask[int(p)] = 1 |
| else: |
| for i in range (0, MAX_CPUS): |
| cpu_mask[i] = 1 |
| |
| if not os.path.exists('results'): |
| os.mkdir('results') |
| # The regular user needs to own the directory, not root. |
| fix_ownership('results') |
| |
| os.chdir('results') |
| if os.path.exists(testname): |
| print('The test name directory already exists. Please provide a unique test name. Test re-run not supported, yet.') |
| sys.exit() |
| os.mkdir(testname) |
| # The regular user needs to own the directory, not root. |
| fix_ownership(testname) |
| os.chdir(testname) |
| |
| # Temporary (or perhaps not) |
| cur_version = sys.version_info |
| print('python version (should be >= 2.7):') |
| print(cur_version) |
| |
| # Left as "cleanup" for potential future re-run ability. |
| cleanup_data_files() |
| |
| if interval: |
| filename = "/sys/kernel/tracing/trace" |
| clear_trace_file() |
| set_trace_buffer_size(memory) |
| enable_trace(trace_file) |
| print('Sleeping for ', interval, 'seconds') |
| time.sleep(int(interval)) |
| disable_trace(trace_file) |
| |
| current_max_cpu = 0 |
| |
| read_trace_data(filename, cpu_mask) |
| |
| if interval: |
| clear_trace_file() |
| # Free the memory |
| free_trace_buffer() |
| |
| if graph_data_present == False: |
| print('No valid data to plot') |
| sys.exit(2) |
| |
| for cpu_no in range(0, current_max_cpu + 1): |
| plot_perf_busy_with_sample(cpu_no) |
| plot_perf_busy(cpu_no) |
| plot_durations(cpu_no) |
| plot_loads(cpu_no) |
| |
| plot_pstate_cpu_with_sample() |
| plot_pstate_cpu() |
| plot_load_cpu() |
| plot_frequency_cpu() |
| plot_duration_cpu() |
| plot_scaled_cpu() |
| plot_boost_cpu() |
| plot_ghz_cpu() |
| |
| # It is preferrable, but not necessary, that the regular user owns the files, not root. |
| for root, dirs, files in os.walk('.'): |
| for f in files: |
| fix_ownership(f) |
| |
| os.chdir('../../') |
