Zaphod Beeblebrox wrote: > On Feb 5, 2008 8:00 AM, Bc. Radek Krejca <[EMAIL PROTECTED]> wrote: > > > > I have FreeBSD box as router > > FreeBSD pvt-gw.starnet.cz 6.1-RELEASE-p12 FreeBSD 6.1-RELEASE-p12 #2: Wed > > Jan 31 21:28:44 CET 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/DL360-G4 > > i386 > > But speed is only about 382 Mbit. I have following values in > > sysctl.conf: > > > > net.inet.ip.fastforwarding=1 > > net.inet.tcp.recvspace=262144 > > net.inet.tcp.sendspace=262144 > > kern.ipc.maxsockbuf=33554432 > > > > The ip.fastforwarding makes a tiny insignificant difference with the caveat > that your box won't show up on traceroutes. Fast forwarding is "fast" by > virtue of the fact that it doesn't decrement TTL.
This effect make other sysctl variable: net.inet.ip.stealth net.inet.ip.fastforwarding described in inet(4). I have appreciable increase in productivity at the Core2Duo processor with several em network cards after enabling net.inet.ip.fastforwarding. Before enabling fastforwarding "swi1: net" use 100% of one cpu, the second core stood idle. After enabling fastforwarding "emX taskq" processes use both cores. -- Mykola Dzham, LEFT-(UANIC|RIPE) JID: [EMAIL PROTECTED] _______________________________________________ freebsd-performance@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-performance To unsubscribe, send any mail to "[EMAIL PROTECTED]"
