[lkml]   [2001]   [Oct]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: Context switch times
On Fri, Oct 05, 2001 at 02:45:26AM +0200, Andrea Arcangeli wrote:
> doesn't lmbench wakeup only via pipes? Linux uses the sync-wakeup that
> avoids reschedule_idle in such case, to serialize the pipe load in the
> same cpu.

That's what I thought too. However, kernel profile data of a
lmbench run on 2.4.10 reveals that the pipe routines only call
the non-synchronous form of wake_up. I believe I reached the
same conclusion in the 2.4.7 time frame by instrumenting this

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: 2005-03-22 13:04    [W:0.158 / U:0.676 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site