Performance of 4.x vs 5.x (Re: Lifetime of FreeBSD branches)
mkb at incubus.de
Tue May 24 09:30:42 PDT 2005
Freddie Cash wrote:
> The laptop has an ATI IXP chipset, which means the HD is detected and run
> as a generic UDMA33 device. The kernel is using the 4BSD scheduler with
> PREEMPTION enabled, all debugging hints disabled, and all the mpsafe
> sysctls enabled.
Hmm.. maybe the disk (interface) is just too slow to trigger this when
running in UDMA33 (and a slow notebook disk).. I have observed it on a
SATA Seagate setup (on ICH6 chipset). Just a wild guess.
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