RFR(XS): 8229407: Avoid ConcurrentHashMap resizes during bootstrap

Alan Bateman Alan.Bateman at oracle.com
Mon Aug 12 10:44:28 UTC 2019

On 12/08/2019 11:13, Claes Redestad wrote:
> Hi core-libs,
> analysis shows that a handful of small ConcurrentHashMaps used during
> bootstrap is subject to some amount of resizing. Initializing these to
> slightly larger values improves startup metrics measurably on default
> images without regressing performance on minimal images.
> Bug:    https://bugs.openjdk.java.net/browse/JDK-8229407
> Webrev: http://cr.openjdk.java.net/~redestad/8229407/webrev.00/
This looks okay.


More information about the core-libs-dev mailing list