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From "Jason Rutherglen (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3389) Evaluate CSLM alternatives for improved cache or GC performance
Date Sat, 22 Oct 2011 15:49:32 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3389?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13133420#comment-13133420
] 

Jason Rutherglen commented on CASSANDRA-3389:
---------------------------------------------

For GC improvements, a strict array based approach could work well.  I was going to test this
in LUCENE-2312 for the terms dict.  The idea is to merge sort arrays into larger structures.
 It's admittedly crude however in some tests it's very fast.  Arrays can be easily pooled,
further reducing garbage collection.
                
> Evaluate CSLM alternatives for improved cache or GC performance
> ---------------------------------------------------------------
>
>                 Key: CASSANDRA-3389
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3389
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 1.1
>
>
> Ben Manes commented on http://www.datastax.com/dev/blog/whats-new-in-cassandra-1-0-performance
that it's worth evaluating https://github.com/mspiegel/lockfreeskiptree and https://github.com/nbronson/snaptree
as CSLM replacements.

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