Scott Bennett wrote: > This is a curiousity question. I'm running 7.2-STABLE at present on > an old Inspiron XPS, which has a 3.4 GHz P4 Prescott CPU. I have > hyperthreading enabled in the kernel. The question is: is there any > appreciable performance difference to be expected with this hardware setup > between the ULE scheduler and the 4BSD scheduler? Or does the fact that > there is only one core eliminate any difference in performance > characteristics?
I'd guess the second thing. It's not like there's cache to be shared between cores, etc. ULE might still be better simply because it is more modern. Anyway, all recent (7.1+) versions of FreeBSD ship with ULE as default, and all FreeBSD versions < 7.0 have broken/unfinished ULE.
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