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https://issues.apache.org/jira/browse/CASSANDRA-1651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924053#action_12924053
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Stu Hood commented on CASSANDRA-1651:
-------------------------------------

I'm not sure how I feel about slab allocation... we're setting ourselves up to 
deal with fragmentation in slabs, etc. Pools of ByteBuffers (similar to Lucene) 
would be my preference.

> Improve read performance by using byte array slabs
> --------------------------------------------------
>
>                 Key: CASSANDRA-1651
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1651
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Core
>            Reporter: T Jake Luciani
>            Priority: Minor
>         Attachments: 1651_v1.txt
>
>
> Now that the code has switched to byte buffers internally,  it should be 
> possible to improve read performance by reducing the number of byte array 
> allocations.
> This patch accomplishes this by and re-using sections of a larger byte array 
> slab.
> I've benchmarked it locally and seen a slight improvement on reads, a larger 
> scale benchmark should be performed.
> Also the size of a slab can be configured in cassandra.yaml

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