[Xenomai] real-time guarantee issues on xenomai 2.6.2.1

Ludovic Righetti ludovic.righetti at tuebingen.mpg.de
Thu Aug 7 21:35:41 CEST 2014


> I suspect you could run any loop, like cat /proc/interrupts, and see the
> same issue. Are you running with a frame buffer in the no-x mode?
>
that's what I thought too, but /proc/interrupts or /proc/xenomai/sched
(or others) do not seem to create any issue (below the output for
interrupts, watching other /proc/ files give similar results).

Let me check about the fb.

ludovic



RTH|----lat min|----lat avg|----lat max|-overrun|---msw|---lat
best|--lat worst
RTD|     -2.322|     -1.053|      7.677|       0|     0|    
-2.322|      7.677
RTD|     -2.321|     -1.062|      8.224|       0|     0|    
-2.322|      8.224
RTD|     -2.322|     -1.058|      7.195|       0|     0|    
-2.322|      8.224
RTD|     -2.320|     -1.050|      7.070|       0|     0|    
-2.322|      8.224
RTD|     -2.321|     -1.056|      7.389|       0|     0|    
-2.322|      8.224
RTD|     -2.323|     -1.060|      6.365|       0|     0|    
-2.323|      8.224
RTD|     -2.320|     -1.050|      8.547|       0|     0|    
-2.323|      8.547
RTD|     -2.320|     -1.051|      8.097|       0|     0|    
-2.323|      8.547
RTD|     -2.320|     -1.062|      7.406|       0|     0|    
-2.323|      8.547
RTD|     -2.321|     -1.054|      9.558|       0|     0|    
-2.323|      9.558
RTD|     -2.321|     -1.061|      6.994|       0|     0|    
-2.323|      9.558
RTD|     -2.321|     -1.064|      5.545|       0|     0|    
-2.323|      9.558




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