[asterisk-dev] rtp scalability improvement...

[Roy Sigurd Karlsbakk]

hi

looking at asterisk scalability during testing, we see asterisk uses  
100% cpu time on a single xeon 2.8 with ~400 calls. monitoring what  
really spends this time, shows system/kernel time is the beast (!).  
After some discussion on #kernelnewbies on irc.oftc.net, one whos  
nick is 'ahu' told me this was 'because of heavy switching', too many  
system calls etc. he mentioned using mmapped libpcap as a dirty hack  
that would allow packets to move into userspace without any system  
call at all.

has anyone thought of this? might it be a good idea, or is it madness?

roy
--
Roy Sigurd Karlsbakk
roy at karlsbakk.net
---
In space, loud sounds, like explosions, are even louder because there  
is no air to get in the way.