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authorFenghua Yu <fenghua.yu@intel.com>2020-01-17 00:32:39 +0300
committerShuah Khan <skhan@linuxfoundation.org>2020-02-11 04:42:29 +0300
commitecdbb911f22d6cc5d422571dedf048b889d71417 (patch)
treefec76c9957f0335f20c5a4a5ad0ae5d3efe8afac /block/bounce.c
parenta2561b12fe392e0024e3187d325dbcbde7b99c04 (diff)
downloadlinux-ecdbb911f22d6cc5d422571dedf048b889d71417.tar.xz
selftests/resctrl: Add MBM test
MBM (Memory Bandwidth Monitoring) test is the first implemented selftest. It starts a stressful memory bandwidth benchmark and assigns the bandwidth pid in a resctrl monitoring group. Read and compare perf IMC counter and MBM total bytes for the benchmark. The numbers should be close enough 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 monitoring 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 'block/bounce.c')
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