Re: 2.6.1-mm1: drivers/video/sis/sis_main.c link error

[Valdis.Kletnieks _at_ xxxxxx]

On Sun, 11 Jan 2004 21:42:59 PST, Andrew Morton said:
> Gene Heskett <gene.heskett _at_ verizon.net> wrote:
> >  hubble of about 4 or 5 months back.  In any other kernel, switching 
> >  to that window took about 12 seconds for the backdrop to be converted 
> >  to 1600x1200x32 and drawn the first time and about 8 seconds for the 
> >  next time.  But with this 2.6.1-mm1 kernel, that repeat window switch 
> >  is so close to instant that I cannot see it being drawn.

> There are no significant fbdev patches in 2.6.1-mm1.  There is a DRM
> update.

The 12 seconds coming and 8 seconds going, versus instant, sounds an *awful*
lot like the virtual memory manager making better choices in -mm kernels, so
the pages of pixmap are staying in memory rather than paging out.

Other guess is that o21-sched.patch is DTRT, while the stock scheduler DTWT
for his particular config.

Gene:  Can you tell what exactly your system is doing for the 12/8 seconds?  Is it
CPU bound, or beating on the disk while paging in/out, or just sitting idle?  Leaving
a 'vmstat 1' running while you change backdrops should tell us something.

Attachment: pgp355016.pgp
Description: PGP signature