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https://issues.apache.org/jira/browse/LUCENE-10125?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-10125:
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Attachment: LUCENE-10125_hack.patch
Status: Open (was: Open)
[~uschindler] here is a very hacky prototype patch (could have correctness
issues) just to try to see the issues. I only did writeLong()
IMO we should add a check to the ctor of OutputStreamIndexOutput, and require
that buffer size is at least 8. This would simplify logic, e.g. in the bounds
check, instead of falling back to super.writeLong(), we could just force a
flush first, this way we always write efficiently.
> Investigate indexing throughput regression on NYC Taxis between 2021-04-12
> and 2021-05-24
> -----------------------------------------------------------------------------------------
>
> Key: LUCENE-10125
> URL: https://issues.apache.org/jira/browse/LUCENE-10125
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-10125_hack.patch
>
>
> There's been a significant drop in indexing throughput between 2021-04-12 and
> 2021-05-24 on the NYC Taxis benchmark. Unfortunately several suspects have
> been merged during that period of time so we might need to git bisect to
> figure out which one is responsible for the regression. Interestingly the
> sorted index looks less affected than the non-sorted indexes.
> https://home.apache.org/~mikemccand/lucenebench/sparseResults.html#index_throughput
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