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Feature #16018
openUse power crc32-vpmsum to accelerate crc32c performance on power8 platform
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Description
https://github.com/antonblanchard/crc32-vpmsum, provide a fast way to calculate crc32c on power8 platform.
This feature will integrate this fast way into ceph.
So when running ceph on power8 platform, crc32 can be accelerated by crc32-vpmsum.
the pull request is
https://github.com/ceph/ceph/pull/9321
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