RFR: JDK-8055845 - Add trace event for promoted objects

Dmitry Fazunenko dmitry.fazunenko at oracle.com
Wed Aug 27 11:08:03 UTC 2014


Hi Staffan,

Thanks for submitting RFE and implementing it! This event seems to be 
used widely.
So it's very important to design it correctly.
May I ask you to provide some extra information:
- format of event
   (this could be included in the CR description)
- regression tests for that event will be also required
- please include hotspot-dev on CC

Thanks,
Dima

On 25.08.2014 20:28, Staffan Friberg wrote:
> Hi,
>
> Could I please get reviews for this RFE that adds a trace event for 
> aging and promotion for young collections in G1, CMS and Parallel GC.
> It works similarly to allocation events, and generates the event on 
> the slow path when either a direct copy occurs or a new PLAB is request.
>
> Since I'm adding an event I cc:ed the serviceability list in case 
> anyone has any comments on the event and changes to trace.xml.
>
> RFE: https://bugs.openjdk.java.net/browse/JDK-8055845
> Webrev: http://cr.openjdk.java.net/~brutisso/8055845/webrev.00
>
> Bengt has been kind and agreed to both sponsor and host the the webrev.
>
> Thanks,
> Staffan
>



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