JEP 144: Reduce GC Latency for Large Heaps

Tony Printezis tony.printezis at oracle.com
Wed Feb 29 12:14:35 PST 2012


Todd,

The fix should be on all the open repos by now and should also be 
included in the upcoming 7u4 release (i.e., it's in hotspot 23).

Tony

On 02/29/2012 03:04 PM, Todd Lipcon wrote:
> On Wed, Feb 29, 2012 at 9:23 AM, Tony Printezis
> <tony.printezis at oracle.com>  wrote:
>> Todd,
>>
>> I recently pushed a change that causes G1 to be more aggressive when
>> choosing which old regions to collect during mixed GCs. I think it still
>> needs a bit more fine-tuning but it's much better compared to what we had
>> before which I admit it was sub-optimal and fiddly. It should address both
>> issues you mentioned below.
>>
> Thanks for the update, Tony. Are these fixes in the latest JDK7
> releases? Or do I need to build from hg? (is there a snapshot/nightly
> build from hg I could try if the latter to avoid the pain of building
> myself?)
>
> -Todd


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