Hello Kudu Jenkins, Adar Dembo, Grant Henke,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/14354
to look at the new patch set (#3).
Change subject: [WIP] KUDU-1938 Performance tuning pt 2
......................................................................
[WIP] KUDU-1938 Performance tuning pt 2
Adds Intel Intrinsics (up to SSE4.2) to speed up the processing of UTF8
character counting in the case of ASCII-only chunks (fast path) by
doubling the chunk size in a single pass from 64 to 128 bits.
Also optimizes the way non-fast-pathed chunks are processed.
Attilas-MacBook-Pro:debug charger$ ninja char_util-test && ./bin/char_util-test
[7/7] Linking CXX executable bin/char_util-test
[==========] Running 4 tests from 1 test case.
[----------] Global test environment set-up.
[----------] 4 tests from CharUtilTest
[ RUN ] CharUtilTest.CorrectnessTestUtf8
[ OK ] CharUtilTest.CorrectnessTestUtf8 (5 ms)
[ RUN ] CharUtilTest.CorrectnessTestAscii
[ OK ] CharUtilTest.CorrectnessTestAscii (1 ms)
[ RUN ] CharUtilTest.StressTestUtf8
[ OK ] CharUtilTest.StressTestUtf8 (3173 ms)
[ RUN ] CharUtilTest.StressTestAscii
[ OK ] CharUtilTest.StressTestAscii (659 ms)
[----------] 4 tests from CharUtilTest (3838 ms total)
[----------] Global test environment tear-down
[==========] 4 tests from 1 test case ran. (3838 ms total)
[ PASSED ] 4 tests.
Change-Id: I9a491157dd5c8b4815030bbda921a0afc0bafd28
---
M src/kudu/util/char_util.cc
1 file changed, 40 insertions(+), 16 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/54/14354/3
--
To view, visit http://gerrit.cloudera.org:8080/14354
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I9a491157dd5c8b4815030bbda921a0afc0bafd28
Gerrit-Change-Number: 14354
Gerrit-PatchSet: 3
Gerrit-Owner: Attila Bukor <[email protected]>
Gerrit-Reviewer: Adar Dembo <[email protected]>
Gerrit-Reviewer: Grant Henke <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
