Review request: 8025996: Track metaspace usage when metaspace is expanded

[Stefan Karlsson]

On 10/8/13 11:19 PM, Coleen Phillimore wrote:
>
> This looks good.  Still working on your other review.

Thanks, Coleen.

StefanK
>
> Coleen
>
> On 10/08/2013 04:58 AM, Stefan Karlsson wrote:
>> http://cr.openjdk.java.net/~stefank/8025996/webrev.00
>>
>> Previously, the Metaspace memory usage was only tracked at the end of 
>> the GCs. This causes the MemoryPoolMXBean.getUsageThreshold(…) 
>> functionality to fail for the Metaspace memory pools. This patch adds 
>> tracking of Metaspace usage when a new Metachunk is fetched.
>>
>> This patch builds upon the patch in:
>> http://mail.openjdk.java.net/pipermail/hotspot-dev/2013-October/011166.html 
>>
>> Review request: 8024547: MaxMetaspaceSize should limit the committed 
>> memory used by the metaspaces
>>
>> This patch has been tested with the fix for:
>> https://bugs.openjdk.java.net/browse/JDK-7196801
>> NPG: Fix java/lang/management/MemoryMXBean/LowMemoryTest2
>>
>> The fix for 7196801 will be done in a separate review request since 
>> the test is located in jdk repository and the fix for 8025996 is done 
>> in the hotspot repository.
>>
>> thanks,
>> StefanK
>