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From "Joshua McKenzie (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8714) row-cache: use preloaded jemalloc w/ Unsafe
Date Thu, 26 Feb 2015 17:35:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8714?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14338753#comment-14338753
] 

Joshua McKenzie commented on CASSANDRA-8714:
--------------------------------------------

Yeah - the lack of respectable LD_PRELOAD alternative means we'll likely sit tight on this
effort for a bit.  I compiled jemalloc-win32 and ran their benchmarks and it's reported numbers
are considerably faster (82+%), but I haven't dug into what their benchmarks are actually
measuring w/regards to contention and sampling, etc.  I'll make a note to look into this after
3.0 hits once I start seriously looking into performance optimizations on the platform.

> row-cache: use preloaded jemalloc w/ Unsafe
> -------------------------------------------
>
>                 Key: CASSANDRA-8714
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8714
>             Project: Cassandra
>          Issue Type: Sub-task
>            Reporter: Robert Stupp
>            Assignee: Robert Stupp
>             Fix For: 3.0
>
>         Attachments: 8714-2.txt, 8714-3.txt, 8714-4.txt, 8714.txt
>
>
> Using jemalloc via Java's {{Unsafe}} is a better alternative on Linux than using jemalloc
via JNA.



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