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List:       openjdk-serviceability-dev
Subject:    Re: JDK-8022203 - Intermittent test failures in demo/jvmti/hprof
From:       Staffan Larsen <staffan.larsen () oracle ! com>
Date:       2014-02-20 11:22:31
Message-ID: AFB7E48F-FC39-4CAC-BEF7-51418EA6422B () oracle ! com
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Looks good!

Thanks,
/Staffan

On 20 feb 2014, at 11:41, Sergei Kovalev <sergei.kovalev@oracle.com> wrote:

> 
> Hello everyone,
> 
> I'm working for https://bugs.openjdk.java.net/browse/JDK-8022203.
> 
> As it was discussed, I prepared fix for the \
> issue:http://cr.openjdk.java.net/~anazarov/8022203/webrev.02/ 
> The failure caused by slippage in IO operation due to file system performance. To \
> avoid this situation we will use an unique file name for profiling dump. In this \
> case we will have zero probability that tests would overlapped by output file. By \
> default the file name for dump output builds from library name plus .java. prefix \
> and .txt suffix. Hprof tool supports "file" option that used for providing the \
> output file name. Therefore we can just add unique file name to options string for \
> each individual tests that used hprof. 
> Testing done:
> - single run of tests
> - Stability run of all modified tests
> - Modified stability run. I did some test modification that helped me to increase \
> reproducibility rating. It was 500-1000 iteration instead 10,000 in original case. \
> Test with modified options string ran 10,000 iteration. 
> Could you please approve the fix?
> 
> -- 
> With best regards,
> Sergei
> 


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