8162795: was: Re: [8u-dev] Request for approval: backport 8152271: MemberNameTable doesn't purge stale entries

[Rob McKenna]

Approved. Please add an appropriate noreg label to the main bug.

    -Rob

On 24/02/17 11:06, Kevin Walls wrote:
> Hi again,
> 
> I'm back: 8152271 has been re-applied to 9.  While it did cause a
> microbenchmark regression, certain apps have a more serious regression
> between jdk7 and 8, which is remedied by 8152271.  The bug for the
> re-application is:
> 
> 8162795: [REDO] MemberNameTable doesn't purge stale entries
> https://bugs.openjdk.java.net/browse/JDK-8162795
> 
> 
> So this is a request for approval to backport 8162795 into jdk8u-dev.  The 9
> changeset imports directly except for one copyright year difference.
> 
> approval mails in 9: http://mail.openjdk.java.net/pipermail/hotspot-runtime-dev/2017-February/022620.html
> 9 changeset: http://hg.openjdk.java.net/jdk9/dev/hotspot/rev/b1606e8fee8c
> (which is Coleen's original change from JDK-8152271 with one copyright year
> change)
> 
> Many thanks
> Kevin
> 
> 
> On 27/01/2017 12:48, Kevin Walls wrote:
> >
> >Oh, thanks David.  There was me getting excited it solved all my
> >problems...
> >
> >Thanks
> >Kevin
> >
> >
> >On 27/01/2017 11:04, David Holmes wrote:
> >>Hi Kevin,
> >>
> >>On 27/01/2017 8:25 PM, Kevin Walls wrote:
> >>>Hi,
> >>>
> >>>I'd like to backport the following to 8u-dev.
> >>>
> >>>8152271: MemberNameTable doesn't purge stale entries
> >>>
> >>>https://bugs.openjdk.java.net/browse/JDK-8152271
> >>
> >>That change was backed out again:
> >>
> >>https://bugs.openjdk.java.net/browse/JDK-8161445
> >>
> >>David
> >>-----
> >>
> >>>An hg import from the 9 changeset:
> >>>
> >>>http://hg.openjdk.java.net/jdk9/jdk9/hotspot/rev/13b2c7ac95a5
> >>>
> >>>...works and tests well in jprt and with a manual testcase that showed
> >>>a
> >>>gc slowdown before the fix.
> >>>
> >>>
> >>>Thanks
> >>>Kevin
> >>>
> >>>
> >
>