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https://issues.apache.org/jira/browse/LUCENE-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654812#action_12654812
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Mark Miller commented on LUCENE-1483:
-------------------------------------
I'll be sure to include that info with the next set of results.
I don't think those results represent getting lucky though: its 4 rounds and 2
runs with the same results (17% both runs). Nothing scientific, just did it
real quick to get a base feel of the slowdown before the patch is finished up.
Here is the alg I used:
{noformat}
merge.factor=mrg:50
compound=false
sort.rng=20000:10000:20000:10000
analyzer=org.apache.lucene.analysis.standard.StandardAnalyzer
directory=FSDirectory
#directory=RamDirectory
doc.stored=true
doc.tokenized=true
doc.term.vector=false
doc.add.log.step=100000
docs.dir=reuters-out
doc.maker=org.apache.lucene.benchmark.byTask.feeds.SortableSimpleDocMaker
query.maker=org.apache.lucene.benchmark.byTask.feeds.SimpleQueryMaker
# task at this depth or less would print when they start
task.max.depth.log=2
log.queries=true
#
-------------------------------------------------------------------------------------
{ "Rounds"
{ "Run"
ResetSystemErase
{ "Populate"
-CreateIndex
{ "MAddDocs" AddDoc(100) > : 500000
-Optimize
-CloseIndex
}
{ "TestSortSpeed"
OpenReader
{ "LoadFieldCacheAndSearch" SearchWithSort(sort_field:int) > : 1
{ "SearchWithSort" SearchWithSort(sort_field) > : 5000
CloseReader
}
NewRound
} : 4
}
RepSumByName
{noformat}
> Change IndexSearcher to use MultiSearcher semantics for sorted searches
> -----------------------------------------------------------------------
>
> Key: LUCENE-1483
> URL: https://issues.apache.org/jira/browse/LUCENE-1483
> Project: Lucene - Java
> Issue Type: Improvement
> Affects Versions: 2.9
> Reporter: Mark Miller
> Priority: Minor
> Attachments: LUCENE-1483.patch
>
>
> Here is a quick test patch. FieldCache for sorting is done at the individual
> IndexReader level and reloading the fieldcache on reopen can be much faster
> as only changed segments need to be reloaded.
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