On Thu, 17 Sep 2009 09:40:16 -0700 (PDT)
Linus Torvalds [off-list ref] wrote:

And then we have page faults. I've long wished that from a system
call tracing standpoint we could show page faults as
pseudo-system-calls (at least as long as they happen from user space
- trying to handle nesting is not worth it). It would make it _so_
much more obvious what the performance patterns are if you could just
do

	strace -ttT firefox

for the cold-cache case and you'd see where the time is really spent.

(yeah, yeah, you can get that kind of information other ways, but
it's a hell of a lot less convenient than just getting a nice trace
with timestamps).

ohhh I should add pagefaults to timechart
good one.


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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