Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2015-02-17 Thread Rik van Riel
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/30/2014 02:52 PM, Marcelo Tosatti wrote: > > Commit "timers: do not raise softirq unconditionally", allows for > timer wheel processing (__run_timers) to be delayed for long > periods of time. > > The effect is that > > loops = jiffies - base-

Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2015-02-17 Thread Sebastian Andrzej Siewior
* Marcelo Tosatti | 2015-01-26 19:12:31 [-0200]: >Ping ? please resent. Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FA

Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2015-01-26 Thread Marcelo Tosatti
Ping ? On Wed, Jan 14, 2015 at 03:21:47PM -0200, Marcelo Tosatti wrote: > > Ping? > > On Tue, Dec 30, 2014 at 05:52:28PM -0200, Marcelo Tosatti wrote: > > > > Commit "timers: do not raise softirq unconditionally", allows for timer > > wheel processing (__run_timers) to be delayed for long peri

Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2015-01-14 Thread Steven Rostedt
On Wed, 14 Jan 2015 15:21:47 -0200 Marcelo Tosatti wrote: > > Ping? > Sorry, I've fallen behind since the holidays and still trying to catch up. I'll try to look at this this week. -- Steve > On Tue, Dec 30, 2014 at 05:52:28PM -0200, Marcelo Tosatti wrote: > > > > Commit "timers: do not rai

Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2015-01-14 Thread Marcelo Tosatti
Ping? On Tue, Dec 30, 2014 at 05:52:28PM -0200, Marcelo Tosatti wrote: > > Commit "timers: do not raise softirq unconditionally", allows for timer > wheel processing (__run_timers) to be delayed for long periods of time. > > The effect is that > > loops = jiffies - base->timer_jiffies > > Ca

Re: [PATCH -rt] timer: upper bound on loops of __run_timers processing

2014-12-30 Thread Rik van Riel
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 12/30/2014 02:52 PM, Marcelo Tosatti wrote: > > Commit "timers: do not raise softirq unconditionally", allows for > timer wheel processing (__run_timers) to be delayed for long > periods of time. > > The effect is that > > loops = jiffies - base-

[PATCH -rt] timer: upper bound on loops of __run_timers processing

2014-12-30 Thread Marcelo Tosatti
Commit "timers: do not raise softirq unconditionally", allows for timer wheel processing (__run_timers) to be delayed for long periods of time. The effect is that loops = jiffies - base->timer_jiffies Can grow to very large values resulting in __run_timers taking hundreds of milliseconds to ex