Compiling Kernel for Computer with 2 CPUs

Lukas Razik lukas at razik.de
Sat May 27 11:14:51 PDT 2006


Hello!

You need this option/device in your KERNCONF file:
options 	SMP
device		apic

For better performance comment out SCHED_4BSD:
#options SCHED_4BSD
And take this:
options SCHED_ULE

You could also try these optimizations:
makeoptions     COPTFLAGS="-O2 -pipe -funroll-loops -ffast-math"

Read this:
http://www.de.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
http://www.silverwraith.com/papers/freebsd-kernel.php


> Another thing, is it a good box for running a webserver with mysql-database
> or should I buy one?

Normally it is but it depends on the load...
And more important than the number of CPUs could be the RAM...

Regards,
Lukas


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