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From "Jonathan Ellis (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-3997) Make SerializingCache Memory Pluggable
Date Wed, 07 Mar 2012 17:28:58 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-3997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13224525#comment-13224525
] 

Jonathan Ellis commented on CASSANDRA-3997:
-------------------------------------------

bq. JEMAlloc hasn't segfault in any of my tests 

What did you mean then by "both TCMalloc and JEMalloc are kind of single threaded (at-least
they crash in my test otherwise)?"
                
> Make SerializingCache Memory Pluggable
> --------------------------------------
>
>                 Key: CASSANDRA-3997
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3997
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Vijay
>            Assignee: Vijay
>            Priority: Minor
>              Labels: cache
>             Fix For: 1.2
>
>         Attachments: jna.zip
>
>
> Serializing cache uses native malloc and free by making FM pluggable, users will have
a choice of gcc malloc, TCMalloc or JEMalloc as needed. 
> Initial tests shows less fragmentation in JEMalloc but the only issue with it is that
(both TCMalloc and JEMalloc) are kind of single threaded (at-least they crash in my test otherwise).

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