Re: [RFC PATCH v3 0/3] sched: simplify the select_task_rq_fair()

[Mike Galbraith]

On Fri, 2013-02-22 at 14:06 +0800, Michael Wang wrote: 
> On 02/22/2013 01:08 PM, Mike Galbraith wrote:
> > On Fri, 2013-02-22 at 10:37 +0800, Michael Wang wrote:
> > 
> >> According to the testing result, I could not agree this purpose of
> >> wake_affine() benefit us, but I'm sure that wake_affine() is a terrible
> >> performance killer when system is busy.
> > 
> > (hm, result is singular.. pgbench in 1:N mode only?)
> 
> I'm not sure about how pgbench implemented, all I know is it will create
> several instance and access the database, I suppose no different from
> several threads access database (1 server and N clients?).

It's user switchable.

-Mike

--
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/