Messages in this thread | | | Date | Fri, 03 May 2013 16:54:27 +0800 | From | Alex Shi <> | Subject | Re: [PATCH v4 0/6] sched: use runnable load based balance |
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On 05/03/2013 03:55 PM, Alex Shi wrote: > Just find a benchmark named as pthread_cond_broadcast. > http://kristiannielsen.livejournal.com/13577.html. will play with it. :) >> >
I tried the pthread_cond_broadcast with/without my latest patchset, seems no clear performance change. without the patch, finished 30000 threads need 0.39 ~ 0.49 seconds in ten times testing, with the patch, finished 30000 thread need 0.38 ~ 0.47 seconds in ten times testing.
I try to give more threads in testing, but when thread number increased to 40000, the testing become extremely slow and gdb find it busy on thread creating.
[New Thread 0x7fe470411700 (LWP 24629)] [New Thread 0x7fe470512700 (LWP 24628)] [New Thread 0x7fe470613700 (LWP 24627)] [New Thread 0x7fe470714700 (LWP 24626)]
-- Thanks Alex
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