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https://issues.apache.org/jira/browse/SOLR-12699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671361#comment-16671361
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Stanislav Livotov commented on SOLR-12699:
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Hi [~cpoerschke], I took a look at your patch and I don't have any concerns
from my side. And thank you one more time for helping with that!
> make LTRScoringModel immutable (to allow hashCode caching)
> ----------------------------------------------------------
>
> Key: SOLR-12699
> URL: https://issues.apache.org/jira/browse/SOLR-12699
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: contrib - LTR
> Reporter: Stanislav Livotov
> Priority: Major
> Attachments: SOLR-12699.patch, SOLR-12699.patch, SOLR-12699.patch,
> SOLR-12699.patch
>
>
> [~slivotov] wrote in SOLR-12688:
> bq. ... LTRScoringModel was a mutable object. It was leading to the
> calculation of hashcode on each query, which in turn can consume a lot of
> time ... So I decided to make LTRScoringModel immutable and cache hashCode
> calculation. ...
> (Please see SOLR-12688 description for overall context and analysis results.)
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