[lkml]   [2005]   [Aug]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Nick Piggin <> wrote:
> Andrew Morton wrote:
> > Andrew Morton <> wrote:
> >
> >>How about we give each arch a printk_clock()?
> >
> >
> > Which might be as simple as this..
> >
> >
> sched_clock() shouldn't really be taken outside kernel/sched.c,
> especially for things like this.
> It actually has some fundamental problems even in its current
> use in the scheduler (which need to be fixed). But basically it
> is a very nasty interface with a rather tenuous relationship to
> time.


> Why not use something like do_gettimeofday? (or I'm sure one
> of our time keepers can suggest the right thing to use).

do_gettimeofday() takes locks, so a) we can't do printk from inside it and
b) if you do a printk-from-interupt and the interrupted code was running
do_gettimeofday(), deadlock.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-08-21 11:37    [W:0.125 / U:1.052 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site