[OpenSIPS-Users] sched_yield()

[Alex Massover]

Hello!

I'm facing a strange problem, sometimes under a stress OpenSIPS "locks" - load average jumps, SIP processing delays, opensips msg queue fills with a lot of sip messages, opensips processes start to comsume a lot of CPU.

And strace shows:
sched_yield()
sched_yield()
sched_yield()
sched_yield()
....
for all processes.

If I stop the stress - after a while (not immediately) - it unlocks, also suddenly, I can see in top that all opensips processes stop to consume CPU.

What can it be? Some kind of starvation?

--
Best Regards,
Alex Massover
VoIP R&D TL
Jajah Inc.

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