[go-nuts] Re: dial io timeout and tcp short connection performance bottleneck

Are you exhausting the local TCP sockets? Some (50k?) in a wait state? Try using a few IP addresses on the test box. Increase /proc/sys/net/core/somaxconn to a larger value, if you have a 20 millisecond pause at 28kreqs/sec then thats 500 ish connections so 1024 may not be enough. -- You rece

[go-nuts] Re: dial io timeout and tcp short connection performance bottleneck

I meant the fully open connections waiting for application handling so the listen queue (somaxconn). On the client and server I'd check you aren't exhausting any of the more obvious limits, so ports/listen queues. Adding more virtual IPs is easy way to test the ports. Listen queues should show