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https://issues.apache.org/jira/browse/HBASE-4027?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Li Pi updated HBASE-4027:
-------------------------
Attachment: HBase-4027 (1).pdf
New updated benchmark results. Tested with 1gb dataset, as per todd's
suggestion. the FS cache does better, but still can't match the off heap cache.
> Enable direct byte buffers LruBlockCache
> ----------------------------------------
>
> Key: HBASE-4027
> URL: https://issues.apache.org/jira/browse/HBASE-4027
> Project: HBase
> Issue Type: Improvement
> Reporter: Jason Rutherglen
> Assignee: Li Pi
> Priority: Minor
> Attachments: 4027-v5.diff, 4027v7.diff, HBase-4027 (1).pdf,
> HBase-4027.pdf, hbase-4027v6.diff, slabcachepatch.diff,
> slabcachepatchv2.diff, slabcachepatchv3.1.diff, slabcachepatchv3.2.diff,
> slabcachepatchv3.diff, slabcachepatchv4.5.diff, slabcachepatchv4.diff
>
>
> Java offers the creation of direct byte buffers which are allocated outside
> of the heap.
> They need to be manually free'd, which can be accomplished using an
> documented {{clean}} method.
> The feature will be optional. After implementing, we can benchmark for
> differences in speed and garbage collection observances.
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