Todd Lipcon created KUDU-1448:
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Summary: Improve bitshuffle to enable AVX2 at runtime
Key: KUDU-1448
URL: https://issues.apache.org/jira/browse/KUDU-1448
Project: Kudu
Issue Type: Improvement
Components: cfile, perf
Affects Versions: 0.8.0
Reporter: Todd Lipcon
I've been doing a little testing with the BITSHUFFLE encoding, and found that
scan performance is improved about 30% on a Haswell cluster by enabling AVX2
when building the bitshuffle library. Unfortunately, that would cause a crash
on earlier boxes, so we can't ship like that.
I filed https://github.com/kiyo-masui/bitshuffle/issues/41 to do the switching
at runtime.
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