RFR(XXS) 8187629: NMT: Memory miscounting in compiler (C2)

[Chris Plummer]

Looks good. Seems to follow a pattern used elsewhere.

thanks,

Chris

On 9/18/17 12:17 PM, Zhengyu Gu wrote:
> Compiler (C2) uses ResourceArea instead of Arena in some 
> circumstances, so it can take advantage of ResourceMark. However, 
> ResourceArea is tagged as mtThread, that results those memory is 
> miscounted by NMT
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8187629
> Webrev: http://cr.openjdk.java.net/~zgu/8187629/webrev.00/
>
>
> Test:
>
>   hotspot_tier1 (fastdebug and release) on Linux x64
>
>
> Thanks,
>
> -Zhengyu