Re: How how latent should non-preemptive scheduling be?

[Arjan van de Ven]

On Wed, 17 Sep 2008 22:18:18 +0100
Sitsofe Wheeler <sitsofe@xxxxxxxxx> wrote:

> Hi,
> 
> I have an EeePC 900 (Intel Celeron 900Mhz) and it seems to be
> skipping while playing sound through various desktop apps with a
> 2.6.27rc6 kernel. It is running off an SD card which really shows up
> slow writes but the sound is seemingly skipping even when ext3 is not
> being used. When look at latencytop I often see results similar to
> this:
> 
> > Cause                                                Maximum
> > Percentage Scheduler: waiting for cpu                        247.2
> > msec         64.6 % futex_wait do_futex sys_futex
> > sysenter_do_call      5.0 msec         24.8 % do_select
> > core_sys_select sys_select sysenter_do_c  4.7 msec          0.7 %
> > do_sys_poll sys_poll sysenter_do_call               4.5


this says you haven't done "make install" on the latencytop directory
so it's not translating things for you.. can you do that please?
--
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/