Re: [PATCH v5 7/7] sched: consider runnable load average in effective_load

From: Alex Shi
Date: Tue May 07 2013 - 21:34:17 EST


On 05/07/2013 01:43 PM, Alex Shi wrote:
>> > This also brings forth another question,should we modify wake_affine()
>> > to pass the runnable load average of the waking up task to effective_load().
>> >
>> > What do you think?
> I am not Paul. :)
>
> The acceptable patch of pgbench attached. In fact, since effective_load is mixed
> with direct load and tg's runnable load. the patch looks no much sense.
> So, I am going to agree to drop it if there is no performance benefit on my benchmarks.

This has a bad results on hackbench on 4 socket NHM/SNB machine, and has
bad result oltp on NHM EX. machine. So, drop it.

--
Thanks
Alex
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/