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https://issues.apache.org/jira/browse/HADOOP-7446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13098150#comment-13098150
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Hadoop QA commented on HADOOP-7446:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12493172/pipelined-crc.patch.txt
against trunk revision .
+1 @author. The patch does not contain any @author tags.
-1 tests included. The patch doesn't appear to include any new or modified
tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed unit tests in hadoop-common-project.
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-common.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-annotations.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//artifact/trunk/patchprocess/newPatchFindbugsWarningshadoop-auth-examples.html
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/140//console
This message is automatically generated.
> Implement CRC32C native code using SSE4.2 instructions
> ------------------------------------------------------
>
> Key: HADOOP-7446
> URL: https://issues.apache.org/jira/browse/HADOOP-7446
> Project: Hadoop Common
> Issue Type: Improvement
> Components: native
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Fix For: 0.23.0
>
> Attachments: crc-pipeline-fix.txt, hadoop-7446.txt, hadoop-7446.txt,
> hadoop-7446.txt, pipelined-crc.patch.txt, pipelined_on_todds_patch.txt,
> pipelined_with_todds_patch.txt
>
>
> Once HADOOP-7445 is implemented, we can get further performance improvements
> by implementing CRC32C using the hardware support available in SSE4.2. This
> support should be dynamically enabled based on CPU feature flags, and of
> course should be ifdeffed properly so that it doesn't break the build on
> architectures/platforms where it's not available.
--
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