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Posted to commits@cassandra.apache.org by "Benedict (JIRA)" <ji...@apache.org> on 2014/06/30 18:08:24 UTC
[jira] [Resolved] (CASSANDRA-6804) Consolidate on-disk and
NativeCell layouts so that reads from disk require less memory
[ https://issues.apache.org/jira/browse/CASSANDRA-6804?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Benedict resolved CASSANDRA-6804.
---------------------------------
Resolution: Won't Fix
CASSANDRA-7447 probably makes this impossible, or at least undesirable, since we will not store all necessary data for a single cell contiguously.
> Consolidate on-disk and NativeCell layouts so that reads from disk require less memory
> --------------------------------------------------------------------------------------
>
> Key: CASSANDRA-6804
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6804
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Benedict
> Fix For: 3.0
>
>
> If the on-disk Cell representation were the same as we use for NativeCell, we could easily allocate a NativeCell instead of a BufferCell, immediately reducing the amount of garbage generated on reads. With further work we may also be able to reach a zero-copy allocation as well, reducing further the read costs.
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