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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-17877) Replace/improve HBase's byte[] comparator
Date Wed, 05 Apr 2017 01:38:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-17877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15956166#comment-15956166
] 

Duo Zhang commented on HBASE-17877:
-----------------------------------

{noformat}
-        int j = minWords << 3; // Same as minWords * SIZEOF_LONG
-        for (int i = 0; i < j; i += SIZEOF_LONG) {
+        for (int i = 0; i < minWords * SIZEOF_LONG; i += SIZEOF_LONG) {
{noformat}

Why this change?

And mind sharing the code of your perf tests?

Thanks.

> Replace/improve HBase's byte[] comparator
> -----------------------------------------
>
>                 Key: HBASE-17877
>                 URL: https://issues.apache.org/jira/browse/HBASE-17877
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Vikas Vishwakarma
>         Attachments: 17877-1.2.patch
>
>
> [~vik.karma] did some extensive tests and found that Hadoop's version is faster - dramatically
faster in some cases.
> Patch forthcoming.



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