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https://issues.apache.org/jira/browse/OAK-3343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14738804#comment-14738804
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Thomas Mueller commented on OAK-3343:
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http://svn.apache.org/r1702259 (trunk; adding a disabled performance test)
I noticed the Guava cache we use also uses a segment mechanism, same as the
LIRS cache. My tests show that the LIRS cache is almost always faster than the
Guava cache (average 30%). The default settings for the LIRS cache is 16
segments, and for the Guava cache also 16. So I consider this closed.
> LIRS Cache: investigate concurrency behavior
> --------------------------------------------
>
> Key: OAK-3343
> URL: https://issues.apache.org/jira/browse/OAK-3343
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: cache, core
> Reporter: Thomas Mueller
> Assignee: Thomas Mueller
> Fix For: 1.3.7
>
>
> I have a report that the LIRS cache (in combination with the persistent
> cache) does not perform well when using 50 threads that concurrently access
> it. The Guava cache might not be affected (as much).
> I would like to investigate, with a simple test case, what is the behavior of
> the LIRS and Guava cache with highly concurrent use cases, in combination
> with a cache loader.
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