2006/10/16, Kian Mohageri <[EMAIL PROTECTED]>:
On 10/16/06, Ivan Voras <[EMAIL PROTECTED]> wrote:
>
> Ok, but take care so that the machine is *completely* idle while you
> doing the tests, otherwise they don't mean anything.
>
Understood.
I noticed somebody suggested trying SMP with hyperthreading disabled in the
BIOS, and I'm a little bit confused as to what sort of results should I
expect from that. Could anybody enlighten me about how the OS will see/make
use of this?
My next test(s) will probably be:
- "SMP w/ HTT" vs. "GENERIC w/ HTT disabled in BIOS" vs. "SMP w/ HTT
disabled in BIOS"
- both lmsensors and unixbench tests
- timecounter comparisons
I think that you might do a real comparison using the same kernel w/
only these slight differences (read: not using GENERIC vs.
custom-kernel):
disable HTT in BIOS:
- kernel w/o SMP (w/o PREEMPTION+FULL_PREEMPTION)
- kernel w/ SMP (w/o PREEMPTION+FULL_PREEMPTION)
- kernel w/o SMP (w/ PREEMPTION+FULL_PREEMPTION)
- kernel w/ SMP (w/ PREEMPTION+FULL_PREEMPTION)
enable HTT in BIOS, active HTT in the kernel and do again these tests
(you might have an 8 cases situation to show).
Attilio
--
Peace can only be achieved by understanding - A. Einstein
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