On 09/14/2007 11:32 AM, Ingo Molnar wrote:
> * Antoine Martin <[email protected]> wrote:
>
>>>> have an impact) Keep CONFIG_SCHED_DEBUG=y to be able to twiddle the
>>>> sysctl.
>> It looks good now! Updated results here:
>> http://devloop.org.uk/documentation/database-performance/Linux-Kernels/Kernels-ManyThreads-CombinedTests5-10msYield-noload.png
>> http://devloop.org.uk/documentation/database-performance/Linux-Kernels/Kernels-ManyThreads-CombinedTests5-10msYield.png
>> Compared with more kernels here - a bit more cluttered:
>> http://devloop.org.uk/documentation/database-performance/Linux-Kernels/Kernels-ManyThreads-CombinedTests4-10msYield-noload.png
>>
>> Thanks Ingo!
>> Does this mean that I'll have to keep doing:
>> echo 1 > /proc/sys/kernel/sched_yield_bug_workaround
>> Or are you planning on finding a more elegant solution?
>
> just to make sure - can you get it to work fast with the
> -rc6+yield-patch solution too? (i.e. not CFS-devel) We need a (tested)
> solution for 2.6.23 and the CFS-devel patches are not for 2.6.23. I've
> attached below the latest version of the -rc6 yield patch - the switch
> is not dependent on SCHED_DEBUG anymore but always available.
>
Is this going to be merged? And will you be making the default == 1 or
just leaving it at 0, which forces people who want the older behavior to
modify the default?
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