Jim Apple has posted comments on this change. Change subject: Use AVX2 operations to speedup Bloom filter insert by 10-50%. ......................................................................
Patch Set 4: > It looks like it hit this on one of the builds: > > 11:45:59 /tmp/cc4RuPOa.s: Assembler messages: > 11:45:59 /tmp/cc4RuPOa.s:19102: Error: no such instruction: > `vpsrlvq -208(%rbp),%ymm0,%ymm0' > 11:45:59 /tmp/cc4RuPOa.s:19115: Error: operand type mismatch for > `vpand' > 11:45:59 /tmp/cc4RuPOa.s:19128: Error: no such instruction: > `vpsllvq -336(%rbp),%ymm0,%ymm0' > 11:45:59 /tmp/cc4RuPOa.s:19148: Error: operand type mismatch for > `vpor' > > That's an avx2 instruction, so I guess on some systems it's trying > to use some assembler that doesn't support AVX2? I filed https://jira.cloudera.com/browse/RELENG-734 to ask for newer linkers on all build machines. Also, I spent some time trying to recreate a query that speeds up either end-to-end or in the build time of a hash join, but did not succeed in finding one. -- To view, visit http://gerrit.cloudera.org:8080/3338 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I6fef4f6652876f8fd7e3f0e41431702380418c98 Gerrit-PatchSet: 4 Gerrit-Project: Impala Gerrit-Branch: cdh5-trunk Gerrit-Owner: Jim Apple <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-HasComments: No
