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https://issues.apache.org/jira/browse/FLINK-23593?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17392298#comment-17392298
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Piotr Nowojski commented on FLINK-23593:
----------------------------------------
{quote}
I'd like to understand why the regression happens due to FLINK-23372 before
deciding whether it is really a problem.
{quote}
+1 for that.
I would be also curious why [one input
benchmark|http://codespeed.dak8s.net:8000/timeline/?ben=sortedOneInput&env=2]
is not showing the same regression. Why is it different? It might have
something to do with the number of available task slots and one input case
requiring fewer of slots? In other words {{sortedOneInput}} case executes all
tasks at once, while {{sortedTowInput}} and {{sortedMultipleInput}} need to
schedule some tasks one after another?
> Performance regression on 15.07.2021
> ------------------------------------
>
> Key: FLINK-23593
> URL: https://issues.apache.org/jira/browse/FLINK-23593
> Project: Flink
> Issue Type: Bug
> Components: API / DataStream, Benchmarks
> Affects Versions: 1.14.0
> Reporter: Piotr Nowojski
> Assignee: Timo Walther
> Priority: Blocker
> Fix For: 1.14.0
>
>
> http://codespeed.dak8s.net:8000/timeline/?ben=sortedMultiInput&env=2
> http://codespeed.dak8s.net:8000/timeline/?ben=sortedTwoInput&env=2
> {noformat}
> pnowojski@piotr-mbp: [~/flink - ((no branch, bisect started on pr/16589))] $
> git ls f4afbf3e7de..eb8100f7afe
> eb8100f7afe [4 weeks ago] (pn/bad, bad, refs/bisect/bad)
> [FLINK-22017][coordination] Allow BLOCKING result partition to be
> individually consumable [Thesharing]
> d2005268b1e [4 weeks ago] (HEAD, pn/bisect-4, bisect-4)
> [FLINK-22017][coordination] Get the ConsumedPartitionGroup that
> IntermediateResultPartition and DefaultResultPartition belong to [Thesharing]
> d8b1a6fd368 [3 weeks ago] [FLINK-23372][streaming-java] Disable
> AllVerticesInSameSlotSharingGroupByDefault in batch mode [Timo Walther]
> 4a78097d038 [3 weeks ago] (pn/bisect-3, bisect-3,
> refs/bisect/good-4a78097d0385749daceafd8326930c8cc5f26f1a)
> [FLINK-21928][clients][runtime] Introduce static method constructors of
> DuplicateJobSubmissionException for better readability. [David Moravek]
> 172b9e32215 [3 weeks ago] [FLINK-21928][clients] JobManager failover should
> succeed, when trying to resubmit already terminated job in application mode.
> [David Moravek]
> f483008db86 [3 weeks ago] [FLINK-21928][core] Introduce
> org.apache.flink.util.concurrent.FutureUtils#handleException method, that
> allows future to recover from the specied exception. [David Moravek]
> d7ac08c2ac0 [3 weeks ago] (pn/bisect-2, bisect-2,
> refs/bisect/good-d7ac08c2ac06b9ff31707f3b8f43c07817814d4f)
> [FLINK-22843][docs-zh] Document and code are inconsistent [ZhiJie Yang]
> 16c3ea427df [3 weeks ago] [hotfix] Split the final checkpoint related tests
> to a separate test class. [Yun Gao]
> 31b3d37a22c [7 weeks ago] [FLINK-21089][runtime] Skip the execution of new
> sources if finished on restore [Yun Gao]
> 20fe062e1b5 [3 weeks ago] [FLINK-21089][runtime] Skip execution for the
> legacy source task if finished on restore [Yun Gao]
> 874c627114b [3 weeks ago] [FLINK-21089][runtime] Skip the lifecycle method of
> operators if finished on restore [Yun Gao]
> ceaf24b1d88 [3 weeks ago] (pn/bisect-1, bisect-1,
> refs/bisect/good-ceaf24b1d881c2345a43f305d40435519a09cec9) [hotfix] Fix
> isClosed() for operator wrapper and proxy operator close to the operator
> chain [Yun Gao]
> 41ea591a6db [3 weeks ago] [FLINK-22627][runtime] Remove unused slot request
> protocol [Yangze Guo]
> 489346b60f8 [3 months ago] [FLINK-22627][runtime] Remove PendingSlotRequest
> [Yangze Guo]
> 8ffb4d2af36 [3 months ago] [FLINK-22627][runtime] Remove TaskManagerSlot
> [Yangze Guo]
> 72073741588 [3 months ago] [FLINK-22627][runtime] Remove SlotManagerImpl and
> its related tests [Yangze Guo]
> bdb3b7541b3 [3 months ago] [hotfix][yarn] Remove unused internal options in
> YarnConfigOptionsInternal [Yangze Guo]
> a6a9b192eac [3 weeks ago] [FLINK-23201][streaming] Reset alignment only for
> the currently processed checkpoint [Anton Kalashnikov]
> b35701a35c7 [3 weeks ago] [FLINK-23201][streaming] Calculate checkpoint
> alignment time only for last started checkpoint [Anton Kalashnikov]
> 3abec22c536 [3 weeks ago] [FLINK-23107][table-runtime] Separate
> implementation of deduplicate rank from other rank functions [Shuo Cheng]
> 1a195f5cc59 [3 weeks ago] [FLINK-16093][docs-zh] Translate "System Functions"
> page of "Functions" into Chinese (#16348) [ZhiJie Yang]
> {noformat}
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