* dumb question from curious newbee.
@ 2003-06-20 7:22 Japie
2003-06-20 17:44 ` Dominik Brodowski
0 siblings, 1 reply; 6+ messages in thread
From: Japie @ 2003-06-20 7:22 UTC (permalink / raw)
To: cpufreq
Hello,
Here's the dumb question; Is my AMD Duron with VIA-KT133 capable of
freq. stepping? (to reduce temp. in my server.)
I'am not subscribed, so if you answer will you please cc me?
--
Groetjes Japie
http://japie.is.dreaming.org
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dumb question from curious newbee.
2003-06-20 7:22 dumb question from curious newbee Japie
@ 2003-06-20 17:44 ` Dominik Brodowski
2003-06-20 18:29 ` Johan Braennlund
2003-06-20 22:48 ` Gregor Hlawacek
0 siblings, 2 replies; 6+ messages in thread
From: Dominik Brodowski @ 2003-06-20 17:44 UTC (permalink / raw)
To: Japie; +Cc: cpufreq
On Fri, Jun 20, 2003 at 09:22:05AM +0200, Japie wrote:
> Hello,
>
> Here's the dumb question; Is my AMD Duron with VIA-KT133 capable of
> freq. stepping? (to reduce temp. in my server.)
No, there's no frequency scaling for AMD Duron. But maybe throttling (power
consumption is reduced linear to processing power) is available - try out
ACPI [http://acpi.sf.net for more information]
Dominik
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dumb question from curious newbee.
2003-06-20 17:44 ` Dominik Brodowski
@ 2003-06-20 18:29 ` Johan Braennlund
2003-06-20 22:48 ` Gregor Hlawacek
1 sibling, 0 replies; 6+ messages in thread
From: Johan Braennlund @ 2003-06-20 18:29 UTC (permalink / raw)
To: cpufreq
On Fri, 20 Jun 2003, Dominik Brodowski wrote:
> No, there's no frequency scaling for AMD Duron. But maybe throttling (power
> consumption is reduced linear to processing power) is available - try out
> ACPI [http://acpi.sf.net for more information]
That's something I've wondered about for a while - precisely what
determines whether throttling is available? Is that another one of these
"should only depend on the processor, unless you have a stupid BIOS"
things? For instance, ACPI tells me that throttling is not available on my
Athlon XP 1800:
$ cat /proc/acpi/processor/CPU0/info
processor id: 0
acpi id: 1
bus mastering control: yes
power management: yes
throttling control: no
performance management: no
limit interface: no
$ cat /proc/cpuinfo
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 8
model name : mobile AMD Athlon(tm) XP 1800+
stepping : 0
cpu MHz : 1500.590
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mp mmxext 3dnowext 3dnow
bogomips : 2957.31
- Johan
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dumb question from curious newbee.
2003-06-20 17:44 ` Dominik Brodowski
2003-06-20 18:29 ` Johan Braennlund
@ 2003-06-20 22:48 ` Gregor Hlawacek
2003-06-21 19:35 ` Carl Thompson
1 sibling, 1 reply; 6+ messages in thread
From: Gregor Hlawacek @ 2003-06-20 22:48 UTC (permalink / raw)
To: Cpufreq
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Am Freitag, 20. Juni 2003 19:44 schrieb Dominik Brodowski:
> On Fri, Jun 20, 2003 at 09:22:05AM +0200, Japie wrote:
> > Hello,
> >
> > Here's the dumb question; Is my AMD Duron with VIA-KT133 capable of
> > freq. stepping? (to reduce temp. in my server.)
>
> No, there's no frequency scaling for AMD Duron. But maybe throttling
> (power consumption is reduced linear to processing power) is available -
> try out ACPI [http://acpi.sf.net for more information]
Maybe I miss understood the whole cpufreq thing. but doesn't the cpufreq
thing do exactly that thing. My AMD Duron 1.1 GHz can be slowed down to
500MHz with your backport from cpufreq to 2.4.19, or did I get something
wrong
Gregor
btw: will there be any backport of powernow-k7 to 2.4.21?
--
Gregor Hlawacek Austria
http://www.unileoben.ac.at/~m9327555/ May the source be with you!
This posting is 100% M$ free. Guaranteed by Tux, the friendly penguin.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dumb question from curious newbee.
2003-06-20 22:48 ` Gregor Hlawacek
@ 2003-06-21 19:35 ` Carl Thompson
2003-06-22 10:18 ` Gregor Hlawacek
0 siblings, 1 reply; 6+ messages in thread
From: Carl Thompson @ 2003-06-21 19:35 UTC (permalink / raw)
To: cpufreq
Quoting Gregor Hlawacek <lawa@gmx.at>:
> ...
> > No, there's no frequency scaling for AMD Duron. But maybe throttling
> > (power consumption is reduced linear to processing power) is available
> -
> > try out ACPI [http://acpi.sf.net for more information]
>
> Maybe I miss understood the whole cpufreq thing. but doesn't the cpufreq
> thing do exactly that thing. My AMD Duron 1.1 GHz can be slowed down to
> 500MHz with your backport from cpufreq to 2.4.19, or did I get something
> wrong
The Regular AMD Duron has no support for PowerNow, and hence no support for
CPUFreq. Some versions of the AMD Mobile Duron _do_ have support for
PowerNow and CPUFreq. You probably have an AMD Mobile Duron, not an AMD
Duron. Different chip.
Carl Thompson
>
> Gregor
>
> btw: will there be any backport of powernow-k7 to 2.4.21?
>
>
> --
> Gregor Hlawacek Austria
> http://www.unileoben.ac.at/~m9327555/ May the source be with you!
> This posting is 100% M$ free. Guaranteed by Tux, the friendly penguin.
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: dumb question from curious newbee.
2003-06-21 19:35 ` Carl Thompson
@ 2003-06-22 10:18 ` Gregor Hlawacek
0 siblings, 0 replies; 6+ messages in thread
From: Gregor Hlawacek @ 2003-06-22 10:18 UTC (permalink / raw)
To: Cpufreq
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Am Samstag, 21. Juni 2003 21:35 schrieb Carl Thompson:
> Quoting Gregor Hlawacek <lawa@gmx.at>:
> > ...
> >
> > > No, there's no frequency scaling for AMD Duron. But maybe throttling
> > > (power consumption is reduced linear to processing power) is
> > > available
> >
> > -
> >
> > > try out ACPI [http://acpi.sf.net for more information]
> >
> > Maybe I miss understood the whole cpufreq thing. but doesn't the
> > cpufreq thing do exactly that thing. My AMD Duron 1.1 GHz can be slowed
> > down to 500MHz with your backport from cpufreq to 2.4.19, or did I get
> > something wrong
>
> The Regular AMD Duron has no support for PowerNow, and hence no support
> for CPUFreq. Some versions of the AMD Mobile Duron _do_ have support for
> PowerNow and CPUFreq. You probably have an AMD Mobile Duron, not an AMD
> Duron. Different chip.
Ähmm okay your point thats right sorry
Gregor
> Carl Thompson
>
> > Gregor
> >
> > btw: will there be any backport of powernow-k7 to 2.4.21?
> >
> >
> > --
> > Gregor Hlawacek
> > Austria http://www.unileoben.ac.at/~m9327555/ May the source be
> > with you! This posting is 100% M$ free. Guaranteed by Tux, the friendly
> > penguin.
>
> _______________________________________________
> Cpufreq mailing list
> Cpufreq@www.linux.org.uk
> http://www.linux.org.uk/mailman/listinfo/cpufreq
--
Gregor Hlawacek Austria
http://www.unileoben.ac.at/~m9327555/ May the source be with you!
This posting is 100% M$ free. Guaranteed by Tux, the friendly penguin.
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^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-06-22 10:18 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2003-06-20 7:22 dumb question from curious newbee Japie
2003-06-20 17:44 ` Dominik Brodowski
2003-06-20 18:29 ` Johan Braennlund
2003-06-20 22:48 ` Gregor Hlawacek
2003-06-21 19:35 ` Carl Thompson
2003-06-22 10:18 ` Gregor Hlawacek
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