Hi, On Apr 5, 2012, at 10:51 PM, Jock McKechnie wrote:
> Thank you for your suggestions; > > I have noticed a very strange symptom but I've yet to determine if it > actually affects call handling or not. When the -relay is heavily > loaded it'll have the load spread out across the cores and then, > suddenly, the CPU usage appears to drift over to a single core and max > it out for a bit, with the other cores doing nothing.... and then it > all spreads out again. The heavier loaded it is, the more time it > spends on one core. Very strange. I installed irqbalance but it > appears not to make a difference. > If you are bombarding the server with calls continuously, you could see a CPU spike, since the call setup is done in a single thread, but after the conntrack rule has been created the kernel takes care and load is shared across all cores. Though I have never experienced this. > I'm hoping the worst this may cause is a slight delay in a call > starting up with an allocated pair of media ports in iptables > forwarding, rather than call audio distortion. Have you ever seen > anything like this? > Since MediaProxy doesn't 'touch' the actual media I don't think it can cause distortion. Now, if the system is so overloaded that packets can't leave the server 'on time', you may have jitter issues. This is just a hypothesis, because it would mean that your server is so overloaded that even sending some UDP data is a problem... Regards, -- Saúl Ibarra Corretgé AG Projects _______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
