> * Rene Herman <rene.herman@keyaccess.nl> wrote:
>
>> On 15-08-08 17:24, Rene Herman wrote:
>>
>>> On 15-08-08 16:22, Ingo Molnar wrote:
>>>
>>>> (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.
>>>> 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?
>>> Quite a lot "uncached-minus" in those lists. I am desperately trying to
>>> avoid a clue about mostly anything graphics related so, "I dunno".
>>>
>>> I haven't just disabled PAT yet (although I was about to just do so)
>>> and am available for testing.
>> <waiting with bated breath>
>>
>> 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?
