[SR-Users] Re: Kamailio not receiving packets on high CPS

Yes. There is every other cost associated with processing the request, too, although I'll be the first to acknowledge that kernel-side socket polling is massively more efficient, for all sorts of reasons: reduced context switches, optimal data structures for chaining large numbers of file descriptors, etc. But actually reading the data off the socket, and processing it, still happens in the worker. I think we're talking about two different things: - You're talking about what's fastest given Kamailio's process constraints (and I am happy to agree with you, and I am also happy to concede that developing a methodology for a rigourous quantitative comparison of the total-system energetics of both approaches would be challenging); - I'm talking about async not really getting around the fact that HTTP is slow and cumbersome, and so that truly throughput-maximising approaches would get Kamailio out of that business altogether. Kamailio is a middleware, a kind of Node, and it's architected as such. It's best at facilitating interchange of SIP messages going to and from other places. There is a begrudging need to interact with other services using other protocols, as well, but it should be kept to a minimum and the footprint should be as small as possible for highest performance. HTTP is more like hammering in a nail with a microscope. -- Alex -- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com Tel: +1-706-510-6800