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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14315) Save one call to KeyValueHeap.peek per row
Date Fri, 28 Aug 2015 23:55:45 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14720808#comment-14720808
] 

Hudson commented on HBASE-14315:
--------------------------------

FAILURE: Integrated in HBase-1.0 #1034 (See [https://builds.apache.org/job/HBase-1.0/1034/])
HBASE-14315 Save one call to KeyValueHeap.peek per row. (larsh: rev 89b106231f6f10a13a2fbc317c5770a3841db7ab)
* hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/StoreScanner.java


> Save one call to KeyValueHeap.peek per row
> ------------------------------------------
>
>                 Key: HBASE-14315
>                 URL: https://issues.apache.org/jira/browse/HBASE-14315
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 2.0.0, 1.1.2, 1.3.0, 0.98.15, 1.2.1, 1.0.3
>
>         Attachments: 14315-0.98.txt, 14315-master.txt
>
>
> Another one of my micro optimizations.
> In StoreScanner.next(...) we can actually save a call to KeyValueHeap.peek, which in
my runs of scan heavy loads shows up at top.
> Based on the run and data this can safe between 3 and 10% of runtime.



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