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

[Coleen Phillimore]

This looks good.  Still working on your other review.
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