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| author |   Fenghua Yu <fenghua.yu@intel.com> | 2020-01-16 13:32:40 -0800 |
|---|---|---|
| committer |   Shuah Khan <skhan@linuxfoundation.org> | 2020-02-10 18:42:46 -0700 |
| commit | 01fee6b4d1f93247e806dddb0065b88317949085 (patch) | |
| tree | ea8469cb32e4d0fc2cbd539f4f2a9968a57d9990 /tools/testing/selftests/resctrl/resctrl.h | |
| parent | selftests/resctrl: Add MBM test (diff) | |
| download | linux-dev-01fee6b4d1f93247e806dddb0065b88317949085.tar.xz linux-dev-01fee6b4d1f93247e806dddb0065b88317949085.zip | |
selftests/resctrl: Add MBA test
MBA (Memory Bandwidth Allocation) test starts a stressful memory
bandwidth benchmark and allocates memory bandwidth from 100% down
to 10% for the benchmark process. For each allocation, compare
perf IMC counter and mbm total bytes from resctrl. The difference
between the two values should be within a threshold to pass the test.
Default benchmark is built-in fill_buf. But users can specify their
own benchmark by option "-b".
We can add memory bandwidth allocation for multiple processes in the
future.
Co-developed-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Signed-off-by: Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>
Co-developed-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Babu Moger <babu.moger@amd.com>
Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools/testing/selftests/resctrl/resctrl.h')
| -rw-r--r-- | tools/testing/selftests/resctrl/resctrl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index c92bc50c6751..a6196ab6b59f 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -81,5 +81,7 @@ int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param); int mbm_bw_change(int span, int cpu_no, char *bw_report, char **benchmark_cmd); void tests_cleanup(void); void mbm_test_cleanup(void); +int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd); +void mba_test_cleanup(void); #endif /* RESCTRL_H */ |