Re: [ANNOUNCE] 3.0.1-rt11

[Nivedita Singhvi]

Mike Galbraith wrote:
> On Tue, 2011-08-16 at 12:31 -0700, Paul E. McKenney wrote:
> > On Tue, Aug 16, 2011 at 05:10:08PM +0200, Mike Galbraith wrote:
> > > On Tue, 2011-08-16 at 07:17 -0700, Nivedita Singhvi wrote:
> > >
> > > > Mike,
> > > >
> > > > Which test were you running? Because I'm not seeing it
> > > > on our x3550 M3..
> > > -rt11 did not trip up just idling along like a couple earlier releases
> > > did, but did stall when I tried to run ltp realtime testcases.
> > But please note that if your realtime workload is CPU-bound with prio
> > greater than that of RCU_SOFTIRQ, stalls would be expected.
>
> The (broken) jitter testcase runs two threads, an interrupter thread at
> prio 80, and a worker at 10.  Both sleep.  I just ran the testcase
> standalone, and no stall happened, so perhaps something from an earlier
> testcase got stuck.. or something.
>
> I'll try maxing out boost, and see what happens.  It was set to 50.
>
> 	-Mike

I suppose the other thing to watch out for is the stall
any RT task might see when sched_rt_runtime_us is maxed
out -- it was the occasional cause for a failure or two,
as well.


thanks,
Nivedita
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