RFR: 8236153: ZGC: gc/z/TestUncommit.java fails with java.lang.Exception: Uncommitted too fast

Per Liden per.liden at oracle.com
Tue Jan 14 09:41:35 UTC 2020


Thanks Erik!

/Per

On 1/14/20 10:33 AM, erik.osterlund at oracle.com wrote:
> Hi Per,
> 
> Looks good.
> 
> /Erik
> 
> On 1/13/20 4:12 PM, Per Liden wrote:
>> The test gc/z/TestUncommit.java fails now and then on Windows when 
>> using -Xcomp. This test can fail if it's severely starved on CPU, as 
>> it will cause the timing to be off. The logs confirms that the test 
>> took an unusually long time to execute, suggesting it was starved on 
>> CPU. This only happens in test tiers using -Xcomp, which is likely 
>> causing the unusually high load. This patch disables this test when 
>> using -Xcomp. I've enabled some GC logging, which should helpful if 
>> this test ever fails again.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8236153
>> Webrev: http://cr.openjdk.java.net/~pliden/8236153/webrev.0
>>
>> /Per
> 


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