RFR 8080232: Eagerly promote objects in nmethod to reduce scanning in ParNew

[Carsten Varming]

Dear GC members,

I would like to contribute a fix for JDK-8080232. The bug is marked as
resolved because it was withdrawn. The fix is simple, so I would like to
reopen the ticket. At Twitter we have seen the time to fix relocations
after a ParNew cycle drop by three to four orders of magnitude with this
patch.

I have put a webrev here:
http://cr.openjdk.java.net/~cvarming/prune_scavengable_nmethods/0/webrev/

I will need a sponsor.

Carsten
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.openjdk.org/pipermail/hotspot-gc-dev/attachments/20160215/39ced163/attachment.htm>