RFR (M): (7u60): Backport of 8027476: Improve performance of Stringtable unlink, 8027455: Improve symbol table scan times during gc pauses

[Thomas Schatzl]

Hi,

On Thu, 2014-01-30 at 13:05 +0100, Thomas Schatzl wrote:
> Hi,
> 
> On Wed, 2014-01-29 at 11:55 -0800, Jon Masamitsu wrote:
> > Thomas,
> > 
> > Changes look good.
> 
>   thanks for the review :)
> 
> > 
> > Please run some simple test (does enough work to
> > exercise your changes) with -XX:+UseDynamicNumberOfGCThreads .
> 
> G1 seems to crash in all recent builds for 7u60, 8 and 9 when enabling
> UseDynamicNumberOfGCThreads at the first (young) GC. I filed a bug for
> that (https://bugs.openjdk.java.net/browse/JDK-8033228).

It's actually a duplicate of
https://bugs.openjdk.java.net/browse/JDK-8017462 .

Thomas