lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Yonik Seeley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-2092) Use a native priority queue to order facet results
Date Fri, 03 Sep 2010 15:33:32 GMT

    [ https://issues.apache.org/jira/browse/SOLR-2092?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905938#action_12905938
] 

Yonik Seeley commented on SOLR-2092:
------------------------------------

Performance results:

Faceting on a single valued field with 100K unique values.
Base doc set size = 100K docs.
facet.limit=10
8 request threads (CPU = 4 core Phenom II)
Average response time was measured externally (i.e. includes all request parsing, response
writing, etc)

|facet.offset|ms trunk|ms patch
|0|18|17
|100|18|17
|1000|23|17
|10000|70|20
|100000|211|26

So as expected, most of the performance benefit is when you are paging deep, but there are
also slight improvements across the board.

I plan on committing soon.

> Use a native priority queue to order facet results
> --------------------------------------------------
>
>                 Key: SOLR-2092
>                 URL: https://issues.apache.org/jira/browse/SOLR-2092
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Yonik Seeley
>         Attachments: SOLR-2092.patch, SOLR-2092.patch
>
>
> Deep paging into facets can be improved via use of a native priority queue.
> Comparisons will be faster, and there will be less GC.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message