Date: Thu, 26 May 2005 10:47:48 -0700 From: Peter Kieser <pfak@telus.net> To: freebsd-performance@freebsd.org Subject: Performance/lockup issues with FreeBSD as a router Message-ID: <1117129668.42960bc4b751b@webmail.telus.net>
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Hello guys, I'm not quite sure if this is the right list to address this to, as it's partly a performance problem and partly otherwise. I have a FreeBSD machine acting as a router (doing approx. 15-25Mbit/s of traffic (lot's of small packets, about 45,000 pps)), however I'm currently running into issues where one, or both of the NICs will stop transmitting traffic. When I go onto the machine, and try to ping something I get "No buffer space available" The nics are if_dc, this is a stock FreeBSD 5.4-RELEASE installation (no firewall or anything): Here's my /etc/sysctl.conf: net.inet.ip.rtexpire=1800 net.inet.ip.rtminexpire=1800 kern.maxfiles=32768 kern.maxfilesperproc=32768 kern.ipc.somaxconn=32767 net.inet.tcp.sendspace=256000 net.inet.tcp.recvspace=256000 kern.ipc.maxsockbuf=2097152 net.inet.ip.fastforwarding=1 net.inet.tcp.rfc1323=1 net.link.ether.inet.max_age=600 net.inet.tcp.msl=7500 net.inet.ip.fw.dyn_udp_lifetime=10 net.inet.ip.fw.dyn_buckets=1024 And here's my /boot/loader.conf: kern.ipc.maxsockets="163840" kern.maxusers="2048" Is there anythign I'm overlooking that would be causing the machine to lockup like this? --Peter
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