Re: [Xenomai-help] Adeos/Xenomai Arm Port

["Schlägl Manfred jun." <manfred.schlaegl@domain.hid>]

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> > 
> > Again Latency:
> > 
> > -sh-3.00#  time ./run -- -t 1 -p 1000 -T 10 
> > *
> > *
> > * Type ^C to stop this application.
> > *
> > *
> > Using /lib/modules/2.6.15.7/kernel/kernel/xenomai/nucleus/xeno_nucleus.ko
> > Using /lib/modules/2.6.15.7/kernel/kernel/xenomai/skins/native/xeno_native.ko
> > Using /lib/modules/2.6.15.7/kernel/kernel/xenomai/skins/rtdm/xeno_rtdm.ko
> > Using /lib/modules/2.6.15.7/kernel/drivers/xenomai/testing/xeno_timerbench.ko
> > == Sampling period: 1000 us
> > == Test mode: in-kernel periodic task
> > == All results in microseconds
> > warming up...
> > RTT|  00:00:01  (in-kernel periodic task, 1000 us period, priority 99)
> > RTH|-----lat min|-----lat avg|-----lat max|-overrun|----lat best|---lat
> > worst
> > RTD|      11.680|      16.586|      36.126|       0|      11.680|
> > 36.126
> > RTD|      11.182|      17.092|      43.947|       0|      11.182|
> > 43.947
> > RTD|      11.521|      17.091|      65.411|       0|      11.182|
> > 65.411
> > RTD|      11.981|      17.116|      63.388|       0|      11.182|
> > 65.411
> > RTD|      11.919|      17.121|      66.767|       0|      11.182|
> > 66.767
> > RTD|      12.354|      17.178|      42.996|       0|      11.182|
> > 66.767
> > RTD|      11.884|      17.122|      66.315|       0|      11.182|
> > 66.767
> > RTD|      11.849|      17.132|      65.287|       0|      11.182|
> > 66.767
> > RTD|      11.578|      17.093|      66.824|       0|      11.182|
> > 66.824
> > ---|------------|------------|------------|--------|-------------------------
> > RTS|-1095668.296|       0.001|      93.252|   93340|
> > 00:00:10/00:00:10
> 
> Looks like you forgot to recompile the user space part after applying my
> patch. It changes the ABI between the driver and the test tool, so both
> sides have to be in sync.
> 

User and Kernel-space are in sync, but i'm using xenomai-2.2.3:

typedef struct rttst_tmbench_config {
    int                     mode;
-   uint64_t                period;
    int                     priority;    
+   uint64_t                period;
    int                     warmup_loops;
    int                     histogram_size;
    int                     histogram_bucketsize;
    int                     freeze_max;
} rttst_tmbench_config_t;

RTTST_RTIOC_TMBENCH_START works

but every RTTST_RTIOC_INTERM_BENCH_RES is received by
rt_tmbench_ioctl_nrt (can't handle this request -> -ENOSYS) and
rt_tmbench_ioctl_rt. is this normal?

[42949607.400000] rt_tmbench_ioctl_nrt: request
-1070594560(RTTST_RTIOC_INTERM_BENCH_RES) -> ret = -ENOSYS(-38)

[42949607.410000] rt_tmbench_ioctl_rt -1070594560


I think i should download the latest working copy...

> > 
> > real    0m17.730s
> > user    0m0.840s
> > sys     0m5.000s
> > Time is running very slowly while running this test
> > 0m17.730s on target, while 1m6 in reality
> > 
> 
> Sounds like Linux is not getting (enough) timer IRQs. Check
> /proc/interrupts for progress.
> 

I know. That's the Problem. But why? ... Too short periode? 
"It's sort of weird."
I'll try to check this tomorrow. 


> Jan
> 

Manfred

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