Nursery and Tenured generation sizing

[Jon Masamitsu]

What's your command line?

Alex Aisinzon wrote:
>
> All
>
>  
>
> Our application is very memory intensive and behaves well with a lot 
> of memory. 3GB is close to the 32 bits limit on our platform.
>
> In these tests, the amount of long lived is below 1GB.
>
> I running various performance tests and I am not seeing some definite 
> advantage in using an as large as possible nursery even though this is 
> one of the tenet of the generational garbage collector.
>
> By example, a performance run with 1GB tenured and 2GB nursery is not 
> better performing than one with 2GB tenured and 1GB nursery even 
> though, in both cases, there are very few full collections.
>
> I have been using ParNewGC and will try again with ParallelGC.
>
> This logic has worked very well on another JVM and I see no reason why 
> it would not work equally well with the Sun JDK 1.5.
>
>  
>
> Let me know what you think
>
>  
>
> Alex Aisinzon
>
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>
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