g1: remembered set scan costs very high w/ LRU cache type of behavior
Jon.Masamitsu at Sun.COM
Sat Feb 27 13:12:27 PST 2010
Peter Schuller wrote On 02/27/10 12:19,:
>>Which version of the jdk are you using? Â A jdk 6.0 update? Â Or
>>jdk 7.0 build?
>Apologies, I meant to include that. I'm using:
>java version "1.7.0-ea"
>Java(TM) SE Runtime Environment (build 1.7.0-ea-b84)
>Java HotSpot(TM) 64-Bit Server VM (build 17.0-b09, mixed mode)
The problem you're seeing may be addressed by some
work in progress that is being done under CR
6923991: G1: improve scalability of RSet scanning
I don't think that work has been released yet. If it hasn't,
with your permission, we'll try your test program with
it and see how well it does.
By the way, thank you very much for giving G1
a look. Especially for the details in your mail.
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