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https://issues.apache.org/jira/browse/CAMEL-4476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen resolved CAMEL-4476.
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Resolution: Fixed
Fix Version/s: 2.9.0
2.8.2
Thanks for reporting.
I added a test AggregateSimpleExpressionIssueTest which is similar to yours. It
can be run manually. And the test now runs as fast for constant/simple language.
> Camel splitter/aggregator 2x slower in 2.8.1 vs 2.7.3
> -----------------------------------------------------
>
> Key: CAMEL-4476
> URL: https://issues.apache.org/jira/browse/CAMEL-4476
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.8.1
> Environment: Oracle JDK 1.6.0_26 64-bit, CentOS 6 64-bit
> Reporter: Bryan Keller
> Assignee: Claus Ibsen
> Fix For: 2.8.2, 2.9.0
>
>
> I noticed a sharp decline in the performance of my application when I
> upgraded from Camel 2.7.3 to 2.8.1. I discovered that the splitter/aggregator
> had become the bottleneck in my app. I have created a sample app that
> demonstrates the issue. The aggregator uses a lock, and I suspect lock
> contention may be at the root of this, but didn't notice any changes around
> that in the code diff between the versions.
> I uploaded the sample app to http://www.vancameron.net/CamelPerf.zip. It uses
> gradle. Unzip to a directory then run "gradle" from the command line. To
> change the version from 2.8.1 to 2.7.3, edit the build.gradle file and run
> again.
> The app loads 10 files with 100k lines each. It prints the current time in
> msec per batch.
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