Re: CPU scaling problems

At Fri, 16 Nov 2012 20:54:33 +0200, Adrian Fita wrote: > I don't have freq_step in that path either. Instead, I have it in > /sys/devices/system/cpu/cpufreq/conservative/freq_step . That document is > kinda' old and some info from there might be outdated or things might have > been moved around ("f

Re: CPU scaling problems

On 16/11/12 11:02, Francesco Mazzoli wrote: > Well, I have looked at your config and read this > and I don't > seem to have `/sys/devices/system/cpu/*/cpufreq/conservative/freq_step', even > if > the conservative governor is loaded.

Re: CPU scaling problems

At Thu, 15 Nov 2012 21:50:05 +, Francesco Mazzoli wrote: > > At Thu, 15 Nov 2012 19:40:07 -0200, > Henrique de Moraes Holschuh wrote: > > > > On Thu, 15 Nov 2012, Francesco Mazzoli wrote: > > > At Thu, 15 Nov 2012 18:17:18 -0200, > > > Henrique de Moraes Holschuh wrote: > > > > That said, Lin

Re: CPU scaling problems

Well, I have looked at your config and read this and I don't seem to have `/sys/devices/system/cpu/*/cpufreq/conservative/freq_step', even if the conservative governor is loaded. Any ideas on what might cause this? Francesco -- T

Re: CPU scaling problems

At Fri, 16 Nov 2012 00:16:22 +0200, Adrian Fita wrote: > Actually I use 'conservative' over the 'ondemand' governor. It can be > tweaked to react more quickly, close to the speed of 'ondemand', but it > has the nice feature of providing a "cool-down" period during which if > some task comes along a

Re: CPU scaling problems

On 15/11/12 21:06, Francesco Mazzoli wrote: > With `conservative' or `performance' the CPU scales up correctly (well, with > performance it is always scaled up). With `ondemand' it doesn't. > > This has noticeable consequences: compiling is slow, flash videos are > sluggish. > So I do have a pro

Re: CPU scaling problems

At Thu, 15 Nov 2012 19:40:07 -0200, Henrique de Moraes Holschuh wrote: > > On Thu, 15 Nov 2012, Francesco Mazzoli wrote: > > At Thu, 15 Nov 2012 18:17:18 -0200, > > Henrique de Moraes Holschuh wrote: > > > That said, Linux coordinates with the platform through ACPI. If the BIOS > > > is > > > tu

Re: CPU scaling problems

At Thu, 15 Nov 2012 21:29:18 +0100, Klistvud wrote: > Just an idea. Have you tried explicitly running 'cpufreq-set -g ondemand' and > then checking your currently active governor with 'cpufreq-info'? Yes. > AFAIK, the ondemand governor has been deprecated/abandoned/superseded/whatever > for speci

Re: CPU scaling problems

At Thu, 15 Nov 2012 18:17:18 -0200, Henrique de Moraes Holschuh wrote: > That said, Linux coordinates with the platform through ACPI. If the BIOS is > tuned for maximum battery life, it will interfere with Linux cpufreq. This is a good hint - there is something in the BIOS as I mentioned. So you

Re: CPU scaling problems

Dne, 15. 11. 2012 03:54:31 je Francesco Mazzoli napisal(a): Does anybody have any idea on how to troubleshoot such a problem? I suspect that the problem is either in the kernel or in some other software which is regulating the scaling. Just an idea. Have you tried explicitly running 'cpu

Re: CPU scaling problems

On Thu, 15 Nov 2012, Neal Murphy wrote: > > At a guess, I would assume a configuration problem. Or no problem. Is > > your machine sluggish or unresponsive? How do you know it stays at 800 > > MHz? What tool do you use to monitor it? Maybe your monitor is wrong. I > > am not sure how to troubl

Re: CPU scaling problems

Hi Mark, At Thu, 15 Nov 2012 12:36:48 -0600, Mark Allums wrote: > Sorry, I should have said, Have you tried *another* monitor tool besides > 'stress'? `stress' is not a monitor tool, it just spawns processes doing `sqrt' in a loop or something like that. I also tried with `openssl speed' and a s

Re: CPU scaling problems

On Thursday, November 15, 2012 01:34:11 PM Mark Allums wrote: > > Francesco wrote: > I have installed Debian testing on a X1 Carbon, processor i5-3427U. > > My problem is the following: when the `ondemand' governor is active, the > processor clock never scales up, it always stays at 800Mhz.

RE: CPU scaling problems

-Original Message- From: Mark Allums [mailto:m...@allums.com] Sent: Thursday, November 15, 2012 12:34 PM To: 'debian-user@lists.debian.org' Subject: RE: CPU scaling problems >>>>> Francesco wrote: I have installed Debian testing on a X1 Carbon, processor i5-

RE: CPU scaling problems

> Francesco wrote: I have installed Debian testing on a X1 Carbon, processor i5-3427U. My problem is the following: when the `ondemand' governor is active, the processor clock never scales up, it always stays at 800Mhz. The situation changes when using the `conservative' or the `performance