freebsd vs linux: performance problem

Ivan Voras ivoras at
Fri Dec 14 11:47:30 PST 2007

Erich Dollansky wrote:

> I have had once the problem of a task moving from CPU to CPU and s
> performing badly on FreeBSD.

This is easy to check: either rebuild a kernel without "options SMP" or
disable processes by setting machdep.hlt_cpus (see smp(4)) or set
hint.lapic.X.disable=1, then run the program again.

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