Number of Parallel GC Threads
Jon Masamitsu
Jon.Masamitsu at Sun.COM
Fri Jan 23 18:03:30 UTC 2009
Jon Masamitsu wrote On 01/23/09 07:37,:
>...
>
>In the latest jdk 6 updates the default number of threads
>is less than the number of CPU's. For a T5240 (128 hardware
>threads) I think it will be about 40 GC threads.
>Of course that is still too many for the small applications.
>
>
>
So this 40 for 128 hardware threads is not the 5/8's rule as Tony
described. Niagaras with > 32 hardware threads use a more
conservative 5/16's rule.
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