95af128225
Summary: This speeds up CRC computation significantly on hardware that supports it. Enabled via -msse4. Note: the binary won't be usable on older CPUs that don't support the instruction. Test Plan: crc32c_test Reviewers: dhruba Reviewed By: dhruba Differential Revision: https://reviews.facebook.net/D3201
11 lines
245 B
Plaintext
11 lines
245 B
Plaintext
* How to compile using fbcode and jemalloc
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source fbcode.sh
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make
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* Compiling for CPUs with SSE4 support
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make OPT='-O2 -DNDEBUG -msse4'
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This makes CRC computation much faster, but
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binaries won't run on CPUs that don't support it.
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