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From "Pavel Yaskevich (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1714) zero-copy reads
Date Tue, 28 Dec 2010 19:47:48 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pavel Yaskevich updated CASSANDRA-1714:
---------------------------------------

    Remaining Estimate: 96h
     Original Estimate: 96h

> zero-copy reads
> ---------------
>
>                 Key: CASSANDRA-1714
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1714
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Pavel Yaskevich
>             Fix For: 0.7.1
>
>         Attachments: zerocopy.txt
>
>   Original Estimate: 96h
>  Remaining Estimate: 96h
>
> Since we are already using mmap'd ByteBuffers in MappedFileDataInput we should be able
to do zero-copy reads (via buffer.slice()), which would give us better performance than CASSANDRA-1651
without having to worry about buffer management.

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