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Posted to dev@lucene.apache.org by "Michael McCandless (JIRA)" <ji...@apache.org> on 2013/10/08 23:57:42 UTC
[jira] [Commented] (LUCENE-5265) Make BlockPackedWriter constructor
take an acceptable overhead ratio
[ https://issues.apache.org/jira/browse/LUCENE-5265?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13789757#comment-13789757 ]
Michael McCandless commented on LUCENE-5265:
--------------------------------------------
+1
I was also wondering if we could somehow, if the acceptable overhead ratio is "high enough", not use any blocking and just make a single packed ints array. This is even more RAM wasting, since you lose the per-block compression, but w/ a high acceptable overhead ratio, that's the idea ... or, we could make a separate DVF for this case.
> Make BlockPackedWriter constructor take an acceptable overhead ratio
> --------------------------------------------------------------------
>
> Key: LUCENE-5265
> URL: https://issues.apache.org/jira/browse/LUCENE-5265
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
>
> Follow-up of http://search-lucene.com/m/SjmSW1CZYuZ1
> MemoryDocValuesFormat takes an acceptable overhead ratio but it is only used when doing table compression. It should be used for all compression methods, especially DELTA_COMPRESSED whose encoding is based on BlockPackedWriter.
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