On Thu, Jun 07, 2007 at 09:16:51PM -0700, Paul E. McKenney wrote:

On Thu, Jun 07, 2007 at 04:16:09PM -0400, Steven Rostedt wrote:

quoted

On Thu, 2007-06-07 at 14:51 -0400, Steven Rostedt wrote:

quoted

There might still be an issue here. With the patch I'm getting a really
slow response time on networking. But that be because of other patches I
have applied.

I removed this patch and I can still get the network slowdown/hang. So
this patch is unrelated to this issue. RCU on the otherhand has not been
cleared of suspicion.

Might the slowdown be due to different kernel threads running at different
priorities?  I could easily believe that changing the priority of the
kernel thread processing RCU callbacks could have a noticeable effect
on performance in some cases.

In other news, passed a set of kernbenches at this end, so starting
an rcutorture.

And rcutorture passed 8 hours on a 4-CPU Opteron box.

							Thanx, Paul