2 Commits

Author	SHA1	Message	Date
Fenghua Yu	cd29eef127	selftests/resctrl: Clean up resctrl features check ... [ Upstream commit 2428673638ea28fa93d2a38b1c3e8d70122b00ee ] Checking resctrl features call strcmp() to compare feature strings (e.g. "mba", "cat" etc). The checkings are error prone and don't have good coding style. Define the constant strings in macros and call strncmp() to solve the potential issues. Suggested-by: Shuah Khan <skhan@linuxfoundation.org> Tested-by: Babu Moger <babu.moger@amd.com> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-05-11 14:47:27 +02:00
Fenghua Yu	01fee6b4d1	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>	2020-02-10 18:42:46 -07:00