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authorFenghua Yu <fenghua.yu@intel.com>2020-01-16 13:32:40 -0800
committerShuah Khan <skhan@linuxfoundation.org>2020-02-10 18:42:46 -0700
commit01fee6b4d1f93247e806dddb0065b88317949085 (patch)
treeea8469cb32e4d0fc2cbd539f4f2a9968a57d9990 /tools/testing/selftests/resctrl/fill_buf.c
parentecdbb911f22d6cc5d422571dedf048b889d71417 (diff)
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/fill_buf.c')
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