I understand that part, but is it just really hard to proxy the RTP? is there a bottleneck somewhere? is the code just not efficient enough? (not that i am knocking the code, this is great stuff.) but I dont see the value in proxying (barring doing it for NATs) this until i can get closer to 500 proxied RTP calls on a $3000 computer. this coming from the perspective of an international voip carrier, carrying LOTS of minutes.
I agree (same business, same problem here).
Interesting, though, that most of the CPU seems to be burned in select():
I've compiled with LARGE_FDSET enabled. Without that, gnugk burns even 100% CPU.
[root@lnxc-025:/usr/local/bin]$ strace -cp 22671 Process 22671 attached - interrupt to quit Process 22671 detached % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 80.41 1.921345 58 32953 select 9.52 0.227385 9 25324 sendto 6.70 0.160188 6 25324 recvfrom 1.61 0.038422 93 414 414 rt_sigsuspend 1.23 0.029284 4 7600 gettimeofday 0.24 0.005694 7 838 kill 0.11 0.002519 9 285 write 0.08 0.001927 5 414 414 sigreturn 0.07 0.001712 4 414 rt_sigprocmask 0.02 0.000432 24 18 send 0.01 0.000216 6 36 recv 0.00 0.000099 33 3 shutdown 0.00 0.000057 10 6 time 0.00 0.000041 21 2 socket 0.00 0.000036 12 3 close 0.00 0.000028 14 2 listen 0.00 0.000014 7 2 bind 0.00 0.000009 5 2 getsockname 0.00 0.000009 5 2 setsockopt ------ ----------- ----------- --------- --------- ---------------- 100.00 2.389417 93642 828 total
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