Jim Apple has posted comments on this change. Change subject: IMPALA-4058: ByteSwap256 assumed memory was 16-byte aligned. ......................................................................
Patch Set 5: (2 comments) http://gerrit.cloudera.org:8080/#/c/4205/3/be/src/exprs/expr-test.cc File be/src/exprs/expr-test.cc: Line 1931: TestStringValue("reverse('abcdefg')", "gfedcba"); > I think let's just make it a separate test, the long functions are fine whe Done in PS 5. http://gerrit.cloudera.org:8080/#/c/4205/3/be/src/util/bit-util.cc File be/src/util/bit-util.cc: Line 161: _mm_storeu_si128(reinterpret_cast<__m128i*>(dst + 16), part1); > What's the perf impact? I assume we still benefit from specializing this r I ran the benchmark and the AVX2 version is still >3x faster than the SSSE3 version. -- To view, visit http://gerrit.cloudera.org:8080/4205 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: I39b2b47bb717d5ac9727512a24fcf8a8a6a8dcc6 Gerrit-PatchSet: 5 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: Tim Armstrong <[email protected]> Gerrit-Reviewer: Youwei Wang <[email protected]> Gerrit-HasComments: Yes
