RFR 8150013: ParNew: Prune nmethods scavengable list

[Carsten Varming]

Dear Hotspot developers,

Any chance of a review of this patch? The patch cut between 7ms and 10ms of
every ParNew with one application at Twitter and I expect a 1-2ms
improvement for most applications.

I touch the code cache and GenCollectedHeap, so I assume I need reviews
from both gc and compiler reviewers. Thank you Tony Printezis for the
review (posted on the hotspot-gc-dev list).

I also need a sponsor.

Carsten

On Fri, Feb 19, 2016 at 10:52 AM, Carsten Varming <varming at gmail.com> wrote:

> Dear Hotspot developers,
>
> I would like to contribute a patch for JDK-8150013
> <https://bugs.openjdk.java.net/browse/JDK-8150013>. The current webrev
> can be found here:
> http://cr.openjdk.java.net/~cvarming/scavenge_nmethods_auto_prune/2/.
>
> Suggestions for improvements are very welcome.
>
> Carsten
>