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From: Prantik Kundu <pkundu@andrew.cmu.edu>
To: cpufreq@www.linux.org.uk
Subject: P-M, ICH4 ACPI performance and throttling states and auto-switching, and hard drive standby-ing
Date: Fri, 16 Jan 2004 19:28:02 -0500	[thread overview]
Message-ID: <1074299282.547.9.camel@3piece> (raw)


Hi. I have an IBM T40 P-M 1.6 with ICH4, I'm running 2.4.23 and have
applied the latest ACPI patch which included ACPI CA, so, I can change
both performance states and throttling states effectively

I have some questions and concerns:
Whats the difference between throttling and P-states? It seems that each
P-state has n T-states (where n=8 in my case), because I can slow my
system down so far gnome crawls, and then speed it up fast enough that
my kernel compiles in 3.5 minutes. For the P-M series, what should I use
to do automatic P-state/throttling changes? It seems that cpufreq
wouldnt works since I have an ICH4. Is there anything that can
effectively manage both? It would be nice to bring the CPU down to
~70Mhz (13% of 600MHz, P5 with T7) when I don't need any more than that.
Also, I would very much like to do automatic hard drive standby-ing,
what should I use to do that?

Thank you for your time, looking forward to a response.
 
-Prantik

             reply	other threads:[~2004-01-17  0:28 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-01-17  0:28 Prantik Kundu [this message]
2004-01-17  9:53 ` P-M, ICH4 ACPI performance and throttling states and auto-switching, and hard drive standby-ing Dominik Brodowski

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