RFR: JDK-8008790 - Promotion failed tracing event for all GCs

Jesper Wilhelmsson jesper.wilhelmsson at oracle.com
Tue Feb 26 15:54:04 UTC 2013


After some internal feedback a new version of the webrev is available at:


The biggest change is that the promotion failed event now is sent once per 
thread instead of merging the info into one event.


On 25/2/13 1:53 PM, Jesper Wilhelmsson wrote:
> Hi,
> I'm looking for a couple of reviews for the promotion failed tracing event, now
> implemented for ParNew and Serial GC.
> I have replaced the existing counters and booleans with a PromotionFailedInfo
> object and uses that throughout, so now promotion failed reporting (through the
> tracing framework) looks the same and reports the same data for all young
> collectors.
> I have added two new fields to the promotion failed event: firstSize as reported
> by ParNew logging, and smallestSize which is the smallest object size that
> failed to promote.
> Webrew: http://cr.openjdk.java.net/~jwilhelm/8008790
> Testing: Passes JPRT and the existing promotion failed tests with all collectors.
> Thanks,
> /Jesper

More information about the hotspot-gc-dev mailing list