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https://issues.apache.org/jira/browse/SOLR-15666?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17422392#comment-17422392
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Mark Robert Miller commented on SOLR-15666:
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That's a single thread for those results - if you bump to 5 concurrent threads,
it's over a 40% improvement in qps. There are a lot of cases that would need to
be covered though.
> Heavily reduce faceting ram usage for many cases.
> -------------------------------------------------
>
> Key: SOLR-15666
> URL: https://issues.apache.org/jira/browse/SOLR-15666
> Project: Solr
> Issue Type: Sub-task
> Reporter: Mark Robert Miller
> Assignee: Mark Robert Miller
> Priority: Major
>
> Spinning this out of various efforts from the parallel segments search
> branches.
> Would require a bit more tuning and a much more extensive benchmark
> verification effort.
> This has performance impact as well given gc costs of faceting.
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