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https://issues.apache.org/jira/browse/CASSANDRA-6697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13899559#comment-13899559
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Benedict commented on CASSANDRA-6697:
-------------------------------------
I've uploaded a preliminary patch
[here|https://github.com/belliottsmith/cassandra/tree/iss-6697] that makes the
change for Composite / CellName only.
It would be useful to get some feedback before I take the change to completion.
> Refactor Cell and CellName ByteBuffer accessors to avoid garbage allocation
> where possible
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6697
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6697
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Fix For: 2.1
>
>
> This is a prerequisite for CASSANDRA-6692.
> The basic idea is to, if unsafe is available, abuse it to modify preallocated
> ByteBuffers so that when they are short lived they do not need to be
> instantiated. Initially this will only be helpful for comparisons and lookups
> on the BBs, but with some modifications to the read path we should be able to
> reduce the need in CASSANDRA-6692 to construct BBs to pass to the native
> protocol (thrift may have to continue as is)
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