Date: Thu, 16 Feb 2006 14:32:29 -0600 From: "Mike Loiterman" <mike@ascendency.net> To: "'Wouter Spierenburg'" <wouter@spierenburg.net> Cc: freebsd-questions@freebsd.org Subject: RE: Mysterious reboot Message-ID: <022a01c63338$1ba87d90$0401a8c0@Mike8500> In-Reply-To: <200602161126.k1GBQoaH040934@smtp-vbr17.xs4all.nl>
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Wouter Spierenburg <mailto:wouter@spierenburg.net> wrote: > Try adding the following to /etc/sysctl.conf: > > kern.maxfiles=65535 > kern.maxfilesperproc=20000 > net.inet.tcp.delayed_ack=0 > net.inet.ip.maxfragpackets=10 > kern.ipc.somaxconn=2048 > > then 'cd' to /usr/src/sys/i386/conf > cp GENERIC SERVER > vi SERVER > > and add the following lines at the bottom of the file: > options TCPDEBUG > options RANDOM_IP_ID > options TCP_DROP_SYNFIN > options NMBCLUSTERS=65535 > options NMBUFS=40960 > > save the file, and follow these steps: > > /usr/sbin/config -g SERVER > cd ../../compile/SERVER > make depend > make > make install > #if all went well: > reboot > > The system will then come back up with tuned parameters, allowing more > in/outbound connections and better packethandling. Before I make these changes, I would like to just get a second opinion from the list about their value and what impact, if any, they might have on system stability, compatibility, etc. Wouter, please do not take offense to this! I sincerely appreciate your advice, but this is a production system, so I'm careful about what changes I make when I don't explicitly understand what is going on. I'm not familure with a few of those options. I also noticed that that you used the old (traditional) way of recompiling the kernel. Is that necessary or can I use the newer `make buildkernel KERNCONF=x && make installkernel KERNCONF=x'. I'm simply more comfortable with that way... Thanks to all ------------------------------ Mike Loiterman grantADLER Tel: 630-302-4944 Fax: 773-442-0992 Email: mike@ascendency.net PGP Key: 0xD1B9D18E
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