Re: [ck] Re: SD still better than CFS for 3d ?(was Re: 2.6.23-rc1)

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Em Terça, 31 de Julho de 2007 16:57, Matthew Hawkins escreveu:
> On 7/31/07, Miguel Figueiredo <[email protected]> wrote:
> > CFS does not requeue_task() on SCHED_YIELD (used by graphic drivers) as
> > until 2.6.22 and -ck. Please try this hack [1] that makes -ck to behave
> > like CFS then you are comparing apples to apples.
>
> Hi Miguel,
>
> I tested with sched_yield_ctl set to 1
>
> 2.6.22.1-ck+sched_yield_hack
> 0   51
> 1   51
> 2   51
> 3   46
> 4   38
> 5   38
> 6   38
> 7   30
> 8   27
> 9   22
> 10   20
>
> After getting the numbers on all setups with the 10 loops still
> running I went for a run around the map (I used the "aggressor" map,
> if anyone cares).  CFS was noticeably smoother (despite the small
> framerate differences).  ie CFS was bordering on barely playable,
> whereas the above test it wasn't really playable (felt like playing on
> a lagged server).  Even plain -ck was better (going for a run, the FPS
> jumped from ~2 to 15).  I've noticed messing with sched_yield tends to
> cause strange defects in the past...

Have you tryied the 2 modes of the patch?

-- 

Com os melhores cumprimentos/Best regards,

Miguel Figueiredo
http://www.DebianPT.org
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux