2 x quad-core system is slower that 2 x dual core on FreeBSD

Ivan Voras ivoras at freebsd.org
Mon Dec 3 05:05:38 PST 2007


Antony Mawer wrote:

> Have you tried testing with different values for kern.hz? I am by no
> means an expert, but have stumbled across various postings over the past
> few years that suggest the high value (1000) used by modern (5.x+?)
> kernels can be pessimistic for some workloads...
> 
> If you could try testing with some other values by setting in
> /boot/loader.conf, eg:
> 
>     kern.hz="100"

AFAIK this was tried and found irrelevant for this particular load. It
may still help others.



More information about the freebsd-stable mailing list