Re: [PATCH] improve rwsem scalability (was Re: [CFT][RFC] HT scheduler)

Nick Piggin
2003-12-13T02:15:39Z

Ingo Molnar wrote:

>On Fri, 12 Dec 2003, Nick Piggin wrote:
>
>
>>getting contended. The following graph is a best of 3 runs average.
>>http://www.kerneltrap.org/~npiggin/rwsem.png
>>
>
>the graphs are too noise to be conclusive.
>
>
>>The part to look at is the tail. I need to do some more testing to see
>>if its significant.
>>
>
>yes, could you go from 150 to 300?
>

The benchmark dies at 160 rooms unfortunately. Probably something in the
JVM.

I'll do a larger number of runs around the 130-150 mark.