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From "Vijay (JIRA)" <>
Subject [jira] [Updated] (CASSANDRA-3997) Make SerializingCache Memory Pluggable
Date Tue, 11 Sep 2012 05:36:07 GMT


Vijay updated CASSANDRA-3997:

    Attachment: 0001-CASSANDRA-3997-v3.patch

Hi Paul, Sorry somehow missed update on the ticket... Rebased in v3

FYI: To enable JEMalloc we need to update with
export LD_LIBRARY_PATH=~/jemalloc/lib/

cassandra.yaml with

> Make SerializingCache Memory Pluggable
> --------------------------------------
>                 Key: CASSANDRA-3997
>                 URL:
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: Vijay
>            Assignee: Vijay
>            Priority: Minor
>              Labels: cache
>             Fix For: 1.3
>         Attachments: 0001-CASSANDRA-3997.patch, 0001-CASSANDRA-3997-v2.patch, 0001-CASSANDRA-3997-v3.patch,
> 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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