[jira] [Commented] (ROCKETMQ-334) improve spinlock performance

[ASF GitHub Bot (JIRA)]

    [ 
https://issues.apache.org/jira/browse/ROCKETMQ-334?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16303339#comment-16303339
 ] 

ASF GitHub Bot commented on ROCKETMQ-334:
-----------------------------------------

fucongchan commented on issue #206: [ROCKETMQ-334] spinlock performance 
improvement
URL: https://github.com/apache/rocketmq/pull/206#issuecomment-353884156
 
 
   @vsair 
   old version
   <img width="425" alt="old_version" 
src="https://user-images.githubusercontent.com/31920071/34342230-0a2740ae-e9e4-11e7-860e-c6114e5f6499.png";>
   
   new version
   <img width="422" alt="new_version" 
src="https://user-images.githubusercontent.com/31920071/34342231-1752403a-e9e4-11e7-9b26-c4ac2c61979c.png";>
   
   Thanks to 
http://gee.cs.oswego.edu/cgi-bin/viewcvs.cgi/jsr166/src/test/loops/SimpleMutexLoops.java?revision=1.1&view=markup
 , just replace Mutux to PutMessageSpinLock and make performance test.
   

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> improve spinlock performance
> ----------------------------
>
>                 Key: ROCKETMQ-334
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-334
>             Project: Apache RocketMQ
>          Issue Type: Improvement
>          Components: rocketmq-store
>    Affects Versions: 4.2.0
>            Reporter: fucongwang
>            Assignee: yukon
>            Priority: Minor
>             Fix For: 4.3.0
>
>
> Spin lock Implementation by CLH queue,



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