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https://issues.apache.org/jira/browse/SOLR-2889?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255108#comment-13255108
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austin collins commented on SOLR-2889:
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@Shawn I have been reading though your comments. Well done for taking on this
project, it sounds like a good achievement and addition to the open-s-c.
You set out with a goal, and I guess this was to make performance gains.
However you don't sound confident you have achieved this when you ask for
someone to provide some speed optimization.
Would you mind posting some information about the results of your work and how
much performance gain you made. If you have benchmark results this would be
ideal. Did you notice any increase/decrease in memory and CPU demand?
> Implement Adaptive Replacement Cache
> ------------------------------------
>
> Key: SOLR-2889
> URL: https://issues.apache.org/jira/browse/SOLR-2889
> Project: Solr
> Issue Type: New Feature
> Components: search
> Affects Versions: 3.4
> Reporter: Shawn Heisey
> Priority: Minor
>
> Currently Solr's caches are LRU, which doesn't look at hitcount to decide
> which entries are most important. There is a method that takes both
> frequency and time of cache hits into account:
> http://en.wikipedia.org/wiki/Adaptive_Replacement_Cache
> If it's feasible, this could be a good addition to Solr/Lucene.
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