RFR (M): 8207266: ThreadMXBean::getThreadAllocatedBytes() can be quicker for self thread

[Alan Bateman]

On 28/08/2019 20:22, Hohensee, Paul wrote:
>
> Please review a performance improvement for 
> ThreadMXBean.getThreadAllocatedBytes and the addition of 
> getCurrentThreadAllocatedBytes.
>
> JBS issue:https://bugs.openjdk.java.net/browse/JDK-8207266
>
> Webrev:http://cr.openjdk.java.net/~phh/8207266/webrev.00/
>
> CSR:https://bugs.openjdk.java.net/browse/JDK-8230311
>
> Previous email threads:
> https://mail.openjdk.java.net/pipermail/serviceability-dev/2018-July/024441.html
> https://mail.openjdk.java.net/pipermail/serviceability-dev/2018-August/024763.html
>
> The CSR is for adding ThreadMXBean.getCurrentThreadAllocatedBytes. I’d 
> be great for someone to review it.
>
I suspect the new method needs to be specified to be for the local 
management case only, and it might able to useful to specify it to be 
the equivalent of getThreadAllocatedBytes(Thread.currentThread().getId()).

-Alan
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