RFR: JDK-8132849: Increased stop time in cleanup phase because of single-threaded walk of thread stacks in NMethodSweeper::mark_active_nmethods()

David Holmes david.holmes at oracle.com
Tue Sep 25 21:32:57 UTC 2018


Filed: JDK-8211129

David

On 25/09/2018 5:27 PM, David Holmes wrote:
> Hi Roman,
> 
> This change seems to have broken a test:
> 
> compiler/whitebox/ForceNMethodSweepTest.java
> 
> on exception 'sweep after deoptimization should decrease usage: expected 
> that 1477504 < 1477504':
> 
> I'm assuming the test is assuming (it is a whitebox test afterall) that 
> the cleanup is happening synchronously.
> 
> No bug filed yet.
> 
> Thanks,
> David
> 
> On 25/09/2018 4:17 AM, Roman Kennke wrote:
>> Thanks Tobias for reviewing!
>>
>> Erik: Is this good for you too?
>>
>> Thanks,
>> Roman
>>
>>> Hi Roman,
>>>
>>> On 24.09.2018 18:46, Roman Kennke wrote:
>>>> http://cr.openjdk.java.net/~rkennke/JDK-8132849/webrev.05/
>>>
>>> This looks good to me!
>>>
>>> Best regards,
>>> Tobias
>>>
>>
>>


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