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https://issues.apache.org/jira/browse/SCB-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16357786#comment-16357786
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ASF GitHub Bot commented on SCB-326:
------------------------------------
zhengyangyong commented on issue #548: [SCB-326] Using the EventManager directly
URL:
https://github.com/apache/incubator-servicecomb-java-chassis/pull/548#issuecomment-364299608
Performance test show use custom EventBus has better performance than use
EventBus in guava
**May cause by guava EventBus invoke subscribe method via java reflection
mechanism**
| | custom EventBus | guava EventBus |
| :---------- | :---------- | :---------- |
| tps | 1,000,000 + | 500,000 + |
| latency | 1ms | 1.8ms |
| consumer cpu | about 650% | about 500% |
| producer cpu | about 750% | about 800% |
more detail can found here (in comments) :
https://issues.apache.org/jira/projects/SCB/issues/SCB-326
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> Using the EventManager directly without creating another wrapper
> -----------------------------------------------------------------
>
> Key: SCB-326
> URL: https://issues.apache.org/jira/browse/SCB-326
> Project: Apache ServiceComb
> Issue Type: Sub-task
> Components: Java-Chassis
> Affects Versions: java-chassis-1.0.0-m1
> Reporter: yangyongzheng
> Assignee: yangyongzheng
> Priority: Major
> Fix For: java-chassis-1.0.0-m1
>
> Attachments: image-2018-02-08-18-39-42-739.png,
> image-2018-02-08-18-41-03-675.png, image-2018-02-08-18-42-40-219.png,
> image-2018-02-08-18-46-23-679.png, image-2018-02-08-18-47-07-285.png
>
>
> Remove custom EventBus because old EventManager with google EventBus is good
> enough
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