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https://issues.apache.org/jira/browse/CASSANDRA-3997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vijay updated CASSANDRA-3997:
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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
cassandra-env.sh with
export LD_LIBRARY_PATH=~/jemalloc/lib/
JVM_OPTS="-Djava.library.path=~/jemalloc/lib/"
cassandra.yaml with
memory_allocator: org.apache.cassandra.io.util.JEMallocAllocator
> 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: 1.3
>
> Attachments: 0001-CASSANDRA-3997.patch, 0001-CASSANDRA-3997-v2.patch,
> 0001-CASSANDRA-3997-v3.patch, 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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