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https://issues.apache.org/jira/browse/SOLR-16531?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17686017#comment-17686017
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Ishan Chattopadhyaya commented on SOLR-16531:
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!Screenshot from 2023-02-08 23-31-18.png|width=700!
>From what I can see, after the recent fixes by Jason, performance is back to
>even better than when it was (when JAX RS was introduced). Not just restart
>times are better, but even collection creation times seem better.
That means in the intervening 4-5 months, there are some changes that made
things better substantially. Unfortunately, because the JAX RS integration was
not reverted when the performance degradation was first reported, we can't
exactly pin-point as to which commit(s) made the performance better now. Does
anyone have a clue/guesses?
> Performance degradation due to introduction of JAX-RS
> -----------------------------------------------------
>
> Key: SOLR-16531
> URL: https://issues.apache.org/jira/browse/SOLR-16531
> Project: Solr
> Issue Type: Bug
> Reporter: Ishan Chattopadhyaya
> Priority: Blocker
> Fix For: 9.2
>
> Attachments: Screenshot from 2022-11-09 11-20-44.png, Screenshot from
> 2023-02-08 23-31-18.png,
> jaxrs-integration-with-app-per-configset-flamegraph.html,
> results-with-patch.tar.gz, vanilla-jaxrs-integration-flamegraph.html
>
> Time Spent: 50m
> Remaining Estimate: 0h
>
> During performance benchmarking on branch_9x, I observed a slowdown in
> restart performance since commits in SOLR-16347. See attached screenshot.
> CC [~gerlowskija].
> http://mostly.cool/cluster-test-with-patch.html
> The benchmark is here:
> https://github.com/fullstorydev/solr-bench/blob/ishan/repeatable-jenkins/suites/cluster-test.json.
> This suite was run after retro-actively applying the parallelStream patch
> from SOLR-16414:
> https://github.com/apache/solr/commit/b33161d0cdd976fc0c3dc78c4afafceb4db671cf.diff
>
> Effort to automate these benchmarks is WIP and tracked here: SOLR-16525.
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