ACPI/power implementation causing performance loss with
i7/Nehalem turbo boost
Daniel O'Connor
doconnor at gsoft.com.au
Sat Mar 6 07:29:13 UTC 2010
On Sat, 6 Mar 2010, Kevin Day wrote:
> > ISTR FreeBSD defaults to a very conservative setting here so you
> > may have to set it manually.
>
> Yeah, sorry for not mentioning that I had tried this and didn't see
> any change, so I thought I was on the wrong track.
OK.
> Is the note about adding hint.apic.0.clock=0 mentioned on
> http://wiki.freebsd.org/TuningPowerConsumption needed to leave C1 at
> all on SMP systems?
Dunno sorry.. The only SMP system I have running a recent FreeBSD only
supports C1 :)
--
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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