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From "Stu Hood (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CASSANDRA-675) TcpReader is slow because of using Exception handling in the normal path
Date Fri, 08 Jan 2010 17:46:54 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12798093#action_12798093
] 

Stu Hood commented on CASSANDRA-675:
------------------------------------

Since this patch has a relatively low surface area, and such huge benefits for performance,
perhaps we could backport it to the 0.5 branch as well, to encourage people not to jump ship
for trunk quite yet?

> TcpReader is slow because of using Exception handling in the normal path
> ------------------------------------------------------------------------
>
>                 Key: CASSANDRA-675
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-675
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: 0.9
>            Reporter: Jun Rao
>            Assignee: Jun Rao
>             Fix For: 0.9
>
>         Attachments: issue675.patchv1, issue675.patchv2
>
>
> TcpReader has the overhead of 1-2ms per message reading. This makes quorum reads too
slow.

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