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https://issues.apache.org/jira/browse/CASSANDRA-7096?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Branimir Lambov updated CASSANDRA-7096:
---------------------------------------
Attachment: 7096.patch
Rebased patch attached, comparison
[here|https://github.com/blambov/cassandra/compare/7096-cache-hash-rebased].
> Evaluate murmur hash of token only once
> ---------------------------------------
>
> Key: CASSANDRA-7096
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7096
> Project: Cassandra
> Issue Type: Improvement
> Components: Core
> Reporter: Benedict
> Assignee: Branimir Lambov
> Priority: Minor
> Labels: performance
> Fix For: 3.0
>
> Attachments: 7096.patch
>
>
> Every bloom filter lookup we perform recalculates the murmur hash for the
> token. I propose we extend DecoratedKey for the purposes of reads only, and
> attach the full murmur hash to it so that we can pass these directly to the
> bloom filter.
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