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Posted to commits@cassandra.apache.org by "Jason Rutherglen (Commented) (JIRA)" <ji...@apache.org> on 2011/10/22 17:49:32 UTC
[jira] [Commented] (CASSANDRA-3389) Evaluate CSLM alternatives for
improved cache or GC performance
[ 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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