| resctrl_tests - resctrl file system test suit | |
| Authors: | |
| Fenghua Yu <fenghua.yu@intel.com> | |
| Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>, | |
| resctrl_tests tests various resctrl functionalities and interfaces including | |
| both software and hardware. | |
| Currently it supports Memory Bandwidth Monitoring test and Memory Bandwidth | |
| Allocation test on Intel RDT hardware. More tests will be added in the future. | |
| And the test suit can be extended to cover AMD QoS and ARM MPAM hardware | |
| as well. | |
| BUILD | |
| ----- | |
| Run "make" to build executable file "resctrl_tests". | |
| RUN | |
| --- | |
| To use resctrl_tests, root or sudoer privileges are required. This is because | |
| the test needs to mount resctrl file system and change contents in the file | |
| system. | |
| Executing the test without any parameter will run all supported tests: | |
| sudo ./resctrl_tests | |
| OVERVIEW OF EXECUTION | |
| --------------------- | |
| A test case has four stages: | |
| - setup: mount resctrl file system, create group, setup schemata, move test | |
| process pids to tasks, start benchmark. | |
| - execute: let benchmark run | |
| - verify: get resctrl data and verify the data with another source, e.g. | |
| perf event. | |
| - teardown: umount resctrl and clear temporary files. | |
| ARGUMENTS | |
| --------- | |
| Parameter '-h' shows usage information. | |
| usage: resctrl_tests [-h] [-b "benchmark_cmd [options]"] [-t test list] [-n no_of_bits] | |
| -b benchmark_cmd [options]: run specified benchmark for MBM, MBA and CQM default benchmark is builtin fill_buf | |
| -t test list: run tests specified in the test list, e.g. -t mbm, mba, cqm, cat | |
| -n no_of_bits: run cache tests using specified no of bits in cache bit mask | |
| -p cpu_no: specify CPU number to run the test. 1 is default | |
| -h: help |