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| author | Fenghua Yu <fenghua.yu@intel.com> | 2020-01-17 00:32:42 +0300 |
|---|---|---|
| committer | Shuah Khan <skhan@linuxfoundation.org> | 2020-02-11 04:43:07 +0300 |
| commit | 790bf585b0eeec9aa0e680ba090142b98da7f948 (patch) | |
| tree | f1b40393432f99083d2ab610c9ebb3cf541b6e34 /tools/testing/selftests/resctrl/resctrl.h | |
| parent | 78941183d1b151317beb37b25690b7d87fe2596d (diff) | |
| download | linux-790bf585b0eeec9aa0e680ba090142b98da7f948.tar.xz | |
selftests/resctrl: Add Cache Allocation Technology (CAT) selftest
Cache Allocation Technology (CAT) selftest allocates a portion of
last level cache and starts a benchmark to read each cache
line in this portion of cache. Measure the cache misses in perf and
the misses should be equal to the number of cache lines in this
portion of cache.
We don't use CQM to calculate cache usage because some CAT enabled
platforms don't have CQM.
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 | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h index d326c7e95862..e8399389f3ad 100644 --- a/tools/testing/selftests/resctrl/resctrl.h +++ b/tools/testing/selftests/resctrl/resctrl.h @@ -94,6 +94,9 @@ void mba_test_cleanup(void); int get_cbm_mask(char *cache_type); int get_cache_size(int cpu_no, char *cache_type, unsigned long *cache_size); void ctrlc_handler(int signum, siginfo_t *info, void *ptr); +int cat_val(struct resctrl_val_param *param); +void cat_test_cleanup(void); +int cat_perf_miss_val(int cpu_no, int no_of_bits, char *cache_type); int cqm_resctrl_val(int cpu_no, int n, char **benchmark_cmd); unsigned int count_bits(unsigned long n); void cqm_test_cleanup(void); |