Messages in this thread | | | Date | Tue, 16 Aug 2011 22:03:50 -0700 | From | Nivedita Singhvi <> | Subject | Re: [ANNOUNCE] 3.0.1-rt11 |
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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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