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From "clockfly (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7884) ByteBloomFilter's performance can be improved by avoiding multiplication when generating hash
Date Mon, 25 Feb 2013 03:54:13 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13585606#comment-13585606
] 

clockfly commented on HBASE-7884:
---------------------------------

Hi Ted, 

the patch for 0.94 is already attached.

patch for 0.94.6: https://issues.apache.org/jira/secure/attachment/12570054/bloom_performance_tunning.patch
patch for trunk: https://issues.apache.org/jira/secure/attachment/12570247/bloom_optimization_trunk_patch.patch
                
> ByteBloomFilter's performance can be improved by avoiding multiplication when generating
hash 
> ----------------------------------------------------------------------------------------------
>
>                 Key: HBASE-7884
>                 URL: https://issues.apache.org/jira/browse/HBASE-7884
>             Project: HBase
>          Issue Type: Bug
>          Components: Performance
>    Affects Versions: 0.94.5
>            Reporter: clockfly
>            Priority: Minor
>             Fix For: 0.96.0, 0.94.6
>
>         Attachments: bloom_optimization_trunk_patch.patch, bloom_performance_tunning.patch,
hbase-7884-performance-report.pdf, TestByteBloom.java
>
>
> ByteBloomFilter's performance can be optimized by avoiding multiplication operation when
generating hash 

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