Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Dâniel Fraga
On Mon, 15 Jul 2013 17:01:35 +0200 Frederic Weisbecker wrote: > On Mon, Jul 15, 2013 at 11:51:18AM -0300, Dâniel Fraga wrote: > > The problem is that when we use the new Full dynticks option > > form kernel 3.10.0, the load will go high, always above 1. Bug? > > You mean this is the result t

Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Frederic Weisbecker
On Mon, Jul 15, 2013 at 11:51:18AM -0300, Dâniel Fraga wrote: > On Mon, 15 Jul 2013 16:25:59 +0200 > Frederic Weisbecker wrote: > > > Hi, > > > > Sorry I'm missing the description of the issue. Could you please > > repaste it? > > > > Thanks! > > The problem is that when we use the new F

Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Dâniel Fraga
On Mon, 15 Jul 2013 16:25:59 +0200 Frederic Weisbecker wrote: > Hi, > > Sorry I'm missing the description of the issue. Could you please > repaste it? > > Thanks! The problem is that when we use the new Full dynticks option form kernel 3.10.0, the load will go high, always above 1. Bug

Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Frederic Weisbecker
On Mon, Jul 15, 2013 at 03:36:46PM +0200, Mike Galbraith wrote: > (add cc) > > On Mon, 2013-07-15 at 10:05 -0300, Dâniel Fraga wrote: > > On Fri, 12 Jul 2013 08:52:27 +0200 > > Heinz Diehl wrote: > > > > > This describes exactly what I have encountered, and "tickless idle" > > > fixed it for me

Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Mike Galbraith
(add cc) On Mon, 2013-07-15 at 10:05 -0300, Dâniel Fraga wrote: > On Fri, 12 Jul 2013 08:52:27 +0200 > Heinz Diehl wrote: > > > This describes exactly what I have encountered, and "tickless idle" > > fixed it for me, too. So I'll second that. > > Thanks for the confirmation. I hope Ingo

Re: 3.10.0: Full dynticks = high load

2013-07-15 Thread Dâniel Fraga
On Fri, 12 Jul 2013 08:52:27 +0200 Heinz Diehl wrote: > This describes exactly what I have encountered, and "tickless idle" > fixed it for me, too. So I'll second that. Thanks for the confirmation. I hope Ingo Molnar fixes it. -- Linux 3.10.0: Unicycling Gorilla http://www.youtube.com/

Re: 3.10.0: Full dynticks = high load

2013-07-11 Thread Heinz Diehl
On 11.07.2013, Dâniel Fraga wrote: > I upgraded to kernel 3.10.0 and decided to try the new "Full > dynticks system (tickless)" option, but now the system load is always > at 1 or above. > > Using the previous "Idle dynticks system (tickless idle)" solves > the problem, so it seems t

3.10.0: Full dynticks = high load

2013-07-11 Thread Dâniel Fraga
I upgraded to kernel 3.10.0 and decided to try the new "Full dynticks system (tickless)" option, but now the system load is always at 1 or above. Using the previous "Idle dynticks system (tickless idle)" solves the problem, so it seems the new Full dynticks code is causing this.