Re: Userspace testsuite issues

Emmanuel Pacaud <[email protected]>
Newsgroups gmane.linux.real-time.rtai
Message-ID <[email protected]>
Hi Paolo,

Thanks for your answer.

Le ven. 11 déc. 2015 à 20:44, Paolo Mantegazza 
<[email protected]> a écrit :
> Try enabling CONFIG_RTAI_SCHED_LATENCY_SELFCALIBRATE , within 
> "Scheduling options"

Unfortunately, if I enable this option, compilation is stucked on:

/bin/sh ../../base/sched/selfcalibrate.sh x86

In /var/log/messages, I have:

Dec 14 10:18:39 lappc-f586 kernel: I-pipe: head domain RTAI registered.
Dec 14 10:18:39 lappc-f586 kernel: RTAI[hal]: mounted. ISOL_CPUS_MASK: 
e, LINUX CPU ISOLATED MAP: e).
Dec 14 10:18:39 lappc-f586 kernel: SYSINFO - # CPUs: 4, TIMER NAME: 
'lapic', TIMER IRQ: 4353, TIMER FREQ: 93645997, CLOCK NAME: 'tsc', 
CLOCK FREQ: 2996700000, CPU FREQ: 2996700000, LINUX TIMER IRQ: 4353.
Dec 14 10:18:39 lappc-f586 kernel: RTAI[malloc]: global heap size = 
2097152 bytes, <BSD>.
Dec 14 10:18:39 lappc-f586 kernel: , kstacks pool size = 524288 bytes.
Dec 14 10:18:39 lappc-f586 kernel: RTAI[sched]: hard timer type/freq = 
lapic/93645997(Hz); timing: oneshot; linear timed lists.
Dec 14 10:18:39 lappc-f586 kernel: RTAI[sched]: Linux timer freq = 250 
(Hz), TimeBase freq = 2996700000 hz.
Dec 14 10:18:39 lappc-f586 kernel: RTAI[sched]: timer setup = 73 ns, 
resched latency = 0 ns.

The list of compilation related processes includes:

root     11241  0.0  0.0 103484  2412 pts/0    S+   10:18   0:00 make 
all-am
root     11901  0.0  0.0 106156  2856 pts/0    S+   10:18   0:00 
/bin/sh ../../base/sched/selfcalibrate.sh x86
root     11905  0.0  0.0   8464  2312 pts/0    SLl+ 10:18   0:00 
/virgofs/rtai/linux-3.18.22-x86_64-hal-3-rtai-5.0-test1/rtai-5.0-test1/base/arch/x86/calibration/.libs
root     11906  0.0  0.0 101320  1716 pts/0    S+   10:18   0:00 tee 
tmp_output
root     11929  0.0  0.0      0     0 ?        S    10:18   0:00 
[RTAI_KTHRD_SRVR]

How long calibration is supposed to last ?

	Emmanuel.

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