[
https://issues.apache.org/jira/browse/SOLR-667?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12643988#action_12643988
]
Todd Feak commented on SOLR-667:
--------------------------------
I'll hook up profiling and see if my GC overhead has changed, or is seeing big
peaks. Should be later today.
My document cache is only 4000 for that test, but only about 3300 documents are
in it. I wanted to focus on the overhead of getting things out of LRUCache, as
in production we get >97% hit rates. I verified it's at 100% hit rate (warming
fills it).
> Alternate LRUCache implementation
> ---------------------------------
>
> Key: SOLR-667
> URL: https://issues.apache.org/jira/browse/SOLR-667
> Project: Solr
> Issue Type: New Feature
> Components: search
> Affects Versions: 1.3
> Reporter: Noble Paul
> Assignee: Shalin Shekhar Mangar
> Fix For: 1.4
>
> Attachments: ConcurrentLRUCache.java, ConcurrentLRUCache.java,
> ConcurrentLRUCache.java, SOLR-667-updates.patch, SOLR-667.patch,
> SOLR-667.patch, SOLR-667.patch, SOLR-667.patch, SOLR-667.patch,
> SOLR-667.patch, SOLR-667.patch
>
>
> The only available SolrCache i.e LRUCache is based on _LinkedHashMap_ which
> has _get()_ also synchronized. This can cause severe bottlenecks for faceted
> search. Any alternate implementation which can be faster/better must be
> considered.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
