g1: remembered set scan costs very high w/ LRU cache type of behavior

[Peter Schuller]

> Which version of the jdk are you using?  A jdk 6.0 update?  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)

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/ Peter Schuller