Dan Hecht has posted comments on this change. Change subject: Experiment: glibc strncmp/memcmp appears much faster than SSE4.2 ......................................................................
Patch Set 1: (1 comment) http://gerrit.cloudera.org:8080/#/c/6768/1//COMMIT_MSG Commit Message: PS1, Line 17: memcmp is sse4.1-based > Yes, it looks like it: The particular query test wouldn't likely cover all the places we use memcpy. Probably our targeted perf tests and tpcds/tpch in the cluster benchmarks would give good coverage. -- To view, visit http://gerrit.cloudera.org:8080/6768 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Ie4786a4a75fdaffedd6e17cf076b5368ba4b4e3e Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Jim Apple <[email protected]> Gerrit-Reviewer: Dan Hecht <[email protected]> Gerrit-Reviewer: Jim Apple <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-HasComments: Yes
