Re: Sleep problems in kernel 2.6 from mvista.com
On Wed, 2003-12-03 at 10:29, Michel Dänzer wrote:
> On Wed, 2003-12-03 at 07:30, Soeren Sonnenburg wrote:
> > On Tue, 2003-12-02 at 23:20, Benjamin Herrenschmidt wrote:
> > > On Tue, 2003-12-02 at 23:13, Soeren Sonnenburg wrote:
> > > > On Mon, 2003-12-01 at 23:38, Benjamin Herrenschmidt wrote:
> > [...]
> > > What do you mean ? There is no way the new radeonfb would be slower
> > > than the old one in 2.6. If you run in 8bpp, you won't get any better
> > > without acceleration and the 2.6 radeonfb isn't accelerated (neither
> > > the old one nor the new one). 2.4 was. I don't have time to look into
> > > the accel code for 2.6 for now.
> > Now that you say that, I find that it might be some scheduling problem
> > and not the radeonfb:
> > When I start find /home for the first time it scrolls slowly. When I do
> > it a second time it is still slow. But when I did it a third time it is
> > superb fast (only 45sec vs some minutes / approx the same in xterm)...
> > When I do it now it seems to accelerate... it starts slow but becomes
> > much faster...
> What nice level does the X server run at? A negative value may actually
> hurt with the 2.6 scheduler.
I tried to in/decrease the niceness... and indeed it becomes even more
bumpy when I nice it say -19 ...