Avoiding the Young Generation Guarantee
aaisinzon at guidewire.com
Mon Mar 10 19:36:53 UTC 2008
I thank you for the pointer. I will try that option very soon and report
From: Y Srinivas Ramakrishna [mailto:Y.S.Ramakrishna at Sun.COM]
Sent: Monday, March 10, 2008 12:24 PM
To: Alex Aisinzon
Cc: hotspot-gc-use at openjdk.java.net
Subject: Re: Avoiding the Young Generation Guarantee
-XX:+HandlePromotionFailure should allow you to circumvent the pessimal
(AFAIR, that was made the default behaviour in 6.0, but was not in 5.0,
you also used the CMS collector; but the history is a bit vague in my
so you should of course check this rather than take my word for it.)
----- Original Message -----
From: Alex Aisinzon <aaisinzon at guidewire.com>
Date: Monday, March 10, 2008 11:50 am
Subject: Avoiding the Young Generation Guarantee
To: hotspot-gc-use at openjdk.java.net
> Our application scales very well when more memory is allocated to it.
> The Young Generation Guarantee limits that scalability as it forces
> GC while plenty of space is still available in the tenured space.
> That guarantee forces us to use relatively smaller nurseries.
> %20Generation%20Guarantee%7Coutline infers that this guarantee only
> applies to the serial collector but I see it too with the parallel new
> Maybe I am confused in the collector terminology.
> Could someone tell me how I can disable the young generation
> Thanks in advance
> Alex A
> I have enclosed a snippet of the GC logs for analysis purposes.
> hotspot-gc-use mailing list
> hotspot-gc-use at openjdk.java.net
hotspot-gc-use mailing list
hotspot-gc-use at openjdk.java.net
More information about the hotspot-gc-dev