Hi,
In http://blog.gslin.org/archives/2005/12/12/252/ we test more cases,
and summary some important conclusions:
* SCHED_ULE (kernel options) is faster than SCHED_4BSD.
* Use kern.timecounter.choice=TSC (sysctl) will be faster than ACPI-fast
or ACPI-safe. (about 10% again)
And I notice you use kernel-image-2.6.8-2-686-smp in Debian, but not use
"CPUTYPE?= p3" in /etc/make.conf to compile kernel.
And you should disable these options, it may increase ~10% again:
-cpu I486_CPU
-cpu I586_CPU
cpu I686_CPU