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https://issues.apache.org/jira/browse/HBASE-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12588829#action_12588829
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stack commented on HBASE-576:
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We should check out Dennis's patch: HADOOP-3053
> Investigate IPC performance
> ---------------------------
>
> Key: HBASE-576
> URL: https://issues.apache.org/jira/browse/HBASE-576
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 0.2.0, 0.1.2, 0.1.0, 0.1.1
> Reporter: Jim Kellerman
>
> Turning off all file I/O, and running the PerformanceEvaluation test, of
> 1,048,576 sequential writes to HBase managed to achieve only 7,285 IPCs per
> second.
> Running PerformanceEvaluation sequential write test modified to do an abort
> instead of a commit, it was possible to do 68,337 operations per second. We
> are obviously spending a lot of time doing IPCs.
> We need to investigate to find the bottleneck. Marshalling and unmarshalling?
> Socket setup and teardown?
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