dumb question from curious newbee.
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?
Signature · 2 lines
Groetjes Japie http://japie.is.dreaming.org
Quoted 4 lines · Japie
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
Quoted 3 lines · Dominik Brodowski
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
Am Freitag, 20. Juni 2003 19:44 schrieb Dominik Brodowski:
Quoted 9 lines · Japie
Quoted 4 lines
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?
Signature · 3 lines
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.
Quoting Gregor Hlawacek <[email protected]>:
Quoted 11 lines
...
Quoted 2 lines
No, there's no frequency scaling for AMD Duron. But maybe throttling (power consumption is reduced linear to processing power) is available
-
Quoted 1 line
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
Quoted 11 lines
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.
Am Samstag, 21. Juni 2003 21:35 schrieb Carl Thompson:
Quoted 16 lines
Quoting Gregor Hlawacek <[email protected]>:
Quoted 6 lines
...
Quoted 3 lines
No, there's no frequency scaling for AMD Duron. But maybe throttling (power consumption is reduced linear to processing power) is available
Quoted 8 lines
-
Quoted 1 line
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
Quoted 4 lines
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
Quoted 17 lines
Carl Thompson
Quoted 10 lines
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
[email protected]
http://www.linux.org.uk/mailman/listinfo/cpufreq
Signature · 3 lines
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.