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https://issues.apache.org/jira/browse/LUCENE-5266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13791700#comment-13791700
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Robert Muir commented on LUCENE-5266:
-------------------------------------
FWIW I plugged in a "doublesort" to a macro-benchmark I have at work:
5000 hard queries (OrHighHighHigh) + sort by doubledocvalues field
||name||qps||avg||p10||p50||p90||p99||
|trunk|41.66|23ms|16ms|22ms|32ms|42ms|
|patch|45.32|21ms|15ms|21ms|29ms|38ms|
> Optimization of the direct PackedInts readers
> ---------------------------------------------
>
> Key: LUCENE-5266
> URL: https://issues.apache.org/jira/browse/LUCENE-5266
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Assignee: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-5266.patch, LUCENE-5266.patch
>
>
> Given that the initial focus for PackedInts readers was more on in-memory
> readers (for storing stuff like the mapping from old to new doc IDs at
> merging time), I never spent time trying to optimize the direct readers
> although it could be beneficial now that they are used for disk-based doc
> values.
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