lkml.org 
[lkml]   [2004]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subjectcontention on profile_lock
Date
Hmm, the last patch you sent me worked ok, so I'm not sure why we're seeing 
problems with profiling now. There seems to be very heavy contention on
profile_lock since profile_hook is called unconditionally every timer tick.
Should it only be called if profiling is enabled? Is there a way we can
check the notifier list to see if it's empty before calling it or something?
The only user appears to be oprofile timer based profiling, so in the general
case we're taking the profile_lock and not doing anything.

Thanks,
Jesse
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:07    [W:0.048 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site