* Rene Herman <rene.herman@xxxxxxxxxxxx> wrote:
On 15-08-08 17:24, Rene Herman wrote:
On 15-08-08 16:22, Ingo Molnar wrote:<waiting with bated breath>
(more people Cc:-ed)Thank you. Additional information at http://lkml.org/lkml/2008/8/6/449
agreed - +12 seconds wait suggest some rather fundamental breakage.Quite a lot "uncached-minus" in those lists. I am desperately trying to avoid a clue about mostly anything graphics related so, "I dunno".
Did we go back to uncached for some critical display area that makes
X start up (shut down) that slowly? Did we mark the BIOS uncacheable
perhaps, causing X to execute BIOS code very slowly?
I haven't just disabled PAT yet (although I was about to just do so) and am available for testing.
Additional observation with respect to first,next shutdown:
With Option "AGPSize" "64", and booted with "nopat", X startup (from startx<enter> to functional desktop) is approximately 5 seconds, shutdown is 1 second as calibration times.
Booted without "nopat", X startup seems to alternate between 10+ and 16+ seconds and for shutdown -- the first shutdown after boot takes some 14 seconds total, subsequent shutdowns settle at around 5 seconds.
would it be possible to start up and shut down X in the slow case via strace, by doing something like this:
strace -f -ttt -TTT -o trace.log startx
and see which system calls (or other activities) took suspiciously long?