Jim Apple created IMPALA-6166:
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Summary: Investigate requiring support for newer instruction sets
Key: IMPALA-6166
URL: https://issues.apache.org/jira/browse/IMPALA-6166
Project: IMPALA
Issue Type: Task
Components: Perf Investigation
Reporter: Jim Apple
There may be performance benefit to compiling with flags allowing the compiler
to generate code for newer instruction sets like SSE4.1, AVX, CLMUL, and so on.
There will probably be code simplification, as well. See cpu-info.h.
We might consider doing this only at a new major version. It's also worth
investigating (a) when the last chips without these features were shipped, and
(b) if Xen, VirtualBox, and so on expose that true instruction sets available
via /proc/cpuinfo - sometimes these are masked out
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