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<title>user/sven/linux.git/tools/testing/selftests/resctrl/mba_test.c, branch v5.7.7</title>
<subtitle>Linux Kernel
</subtitle>
<id>https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v5.7.7</id>
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<updated>2020-02-11T01:42:46Z</updated>
<entry>
<title>selftests/resctrl: Add MBA test</title>
<updated>2020-02-11T01:42:46Z</updated>
<author>
<name>Fenghua Yu</name>
<email>fenghua.yu@intel.com</email>
</author>
<published>2020-01-16T21:32:40Z</published>
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<id>urn:sha1:01fee6b4d1f93247e806dddb0065b88317949085</id>
<content type='text'>
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 &lt;sai.praneeth.prakhya@intel.com&gt;
Signed-off-by: Sai Praneeth Prakhya &lt;sai.praneeth.prakhya@intel.com&gt;
Co-developed-by: Babu Moger &lt;babu.moger@amd.com&gt;
Signed-off-by: Babu Moger &lt;babu.moger@amd.com&gt;
Signed-off-by: Fenghua Yu &lt;fenghua.yu@intel.com&gt;
Signed-off-by: Shuah Khan &lt;skhan@linuxfoundation.org&gt;
</content>
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