Debian :: CPU Scaling Not Working?

May 30, 2010

In order to save power and to cool down my Debian system a little bit, I installed cpufregs the other day and changed it the cpu gonever to on_demand.

Well I came back to the box today and powertop tells me that the cpu has been running at 2.66ghz (max freq) for 99/99% of the time.

Running cpufreq says this: Code: analyzing CPU 0:
driver: p4-clockmod
CPUs which need to switch frequency at the same time: 1
hardware limits: 333 MHz - 2.67 GHz

[Code].....

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Ubuntu :: CPU Frequency Scaling Not Working

Jan 17, 2010

I have the CPU frequency scaling applet in the panel and it worked fine when I had 8.10 but now that I'm using Karmic, I cant get it to work correctly!

It won't change the speed to what I tell it to. I click on a different speed and it does nothing.

The CPU spins too slowly and videos lag or it spins at full speed and overheats even though I have nothing open! I really need to be able to adjust it.

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Ubuntu :: Lucid - CPU Scaling Not Working Anymore (Powernow-K8)

May 9, 2010

In Lucid I cannot get CPU scaling to work anymore, in previous Ubuntu releases this was not a problem with the same hardware (AMD Phenom 9500 Quad). I used to load module 'powernow-k8' and 'powernowd' to make it work, but it seems 'powernow-k8' is not available in Lucid. Anyone who has cpu scaling working in Lucid?

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Server :: Frequency Scaling Not Working - Out Of 11 Steps Can Change To Only 2 Frequencies And Rest Fail To Work

Apr 23, 2011

I am using Intel Xeon X 3440 processor. The processor has 11 frequency steps to chose from. I have used cpufreq-selector for choosing a frequency and it worked fine. But, all of a sudden it stops working out of the 11 steps i can change to only 2 frequencies and rest fail to work. I am clueless as to why it stopped working suddenly.

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Debian Configuration :: Disable CPU Frequency Scaling In Most Fundamental Way

Jan 18, 2016

I want to turn off frequency scaling permanently and totally in the lowest-level way possible. Is there a kernel command line that can be used or is recompiling the kernel without the governor stuff the only way?

Solved. Just modprobe -r and blacklist the acpi_cpufreq kernel module.

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Debian Hardware :: CPU Frequency Scaling - On Dual Core Intel ?

Nov 3, 2010

I'm having a weird problem (2.6.32-2-686-bigmem , sid):

Frequency scaling works on CPU 1 but not on CPU 0.

This is regardless of application, the Gnome applet and cpufreq-selector both fail

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Debian Multimedia :: Gnome Applet For Switching CPU Frequency Scaling Has 'disappeared' And Not Listed In Add To Panel

Sep 8, 2011

I have a suspicion that this is easily fixed, however a good google (and this forum) hammering having turned up the fix. So I probably have the wrong search criteria, My Gnome Applet for switching CPU Frequency Scaling has 'disappeared' and is not listed in the the Add to Panel.. list of applets.

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Fedora :: 13 - CPU Not Scaling Frequency?

Jun 16, 2010

I am not entirely convinced that my CPU is actually changing frequency as it is meant to. It sometimes changes frequency, but most of the time it is stuck on 800MHz even when doing cpu intensive tasks. Here is information that may or may not be of help:

cat /proc/cpuinfo
processor: 0
vendor_id: GenuineIntel

[code]....

I notice here that it says between 800 and 800, but does that mean it is currently at 800, or can only be 800.

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Ubuntu :: Disable CPU Scaling Whenever Want?

Jun 15, 2010

I want to be able to disable CPU scaling, whenever I want. The reason is that I run some timing tests, and I want the results to be reproducable (ie the CPU running at the same frequency). I have tried the following on 9.10 and 10.04 (both amd64). I use rcconfig to disable "on demand" (from [URL] but then when I use cpufreq-info tool I get:

[Code]...

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Ubuntu :: 10.04 - BIOS Does Not Support CPU Scaling

Jun 26, 2010

I've been trying to get lucid to work on my gateway netbook. The major problem I've seen is that it would overheat (to about 63 C or a little higher, and then the display would go crazy and crash. My BIOS doesn't support cpu scaling. Somewhere in a google search, someone mentioned the 2.6.34 kernel. I had no ideal what I was doing, and I installed this kernel. (could not install headers -- a dependency issue I didn't understand). Tried it, and it booted.

Saw some errors, like timer or something not found and something about a soft reset. However, it boots, and it works, and the temperature is much better (at least for the last 42 minutes: I've not been able to run it that long before). Are those errors likely to cause problems? Are there any issues I should be aware of using a non-standard kernel like this? I am dual booting with 9.10, which works well, and all my serious work is on the 9.10 partitions.

HID compliant mouse
Synaptics PS/2 Port touchPad
Generic PnP Monitor
Atheros AR5B95 Wireless Network Adapter
Realtek PCIe FE Family Controller
AMD Athlon(tm) Processor L110
Realtgek High Definition Audio
Microsoft iSCISI Initator
Gateway LT3103u

As I write, temp is still at 56, but I am getting some intermittent display problems. Should I give up on lucid?

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Ubuntu :: CPU Frequency Scaling Monitor / Fix It?

Jun 28, 2010

I am new to ubuntu. I have just one question, everytime I reboot my laptop the CPU Frequency Scaling Monitor goes back to "On Demand." Why is that and can I also set it so it stays on Performance.

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Ubuntu :: CPU Speed Scaling For AMD 1090T?

Oct 15, 2010

I'm running ubuntu 10.10 64 bit. CPU speed scaling says my CPU (AMD PhenomII 1090T) is not supported, and shows full speed on all cores, regardless of load. I've read that those issues were solved in kernel 2.6.34...

How can I make it work? or do I have to wait for an update?

Motherboard is an ASUS Crossfire IV.

Admins: Feel free to shift this post to another (sub-)forum if necessary, I wasn't sure where to put it.

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Ubuntu :: Smooth Image Scaling In FF3?

Oct 24, 2010

i face problem with Firefox 3.6.11: smooth image scaling doesn't work. When i zoom in websites (ctrl +), images are not anti aliased, but appear pixelated, which is very ugly.

What I found out about so far, this seems not to be a FF problem (FF3 should support smooth image scaling), but a problem with the video driver, who tells X it could do smooth image scaling automatically but it cant. There is also a "bug" fix for the FF:

launchpad.net/~firefox-smooth-scaling/+archive/ppa I putted this to my package sources and made a system update. But smooth image scaling still doesn't work

[Code]...

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Ubuntu :: Set Cpu Scaling To Ignore BOINC?

Nov 2, 2010

I am trying to set up my cpu freq. scaling to ignore BOINC. From what google has shown me this is done by setting a value of 1 for ignore_nice_load. However the location of said value does not seem to be the same in 10.04 as in the results from google. How do i set this or is there a better way to keep idle processes like BOINC from increasing the my cpu frequency?

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Ubuntu :: HP G60-120US Processor Scaling?

Dec 31, 2010

Basic Info: Ubuntu 10.10, AMD RM-70 2GHZ Processor, HP G60-120US, Bios F54. I'm unable to scale my processor (either core) using the applet in the menu bar. Every time I try, I select 2GHZ, and re-open; then it's displayed that 500MHZ was selected. I'm unable to pick any speed, the computer has a mind of it's own in that sense. It's essentially stuck at 500MHZ for 98% of the uptime, which makes it impossible to do anything more than web browsing. Ex: I tried watching an HD video, I watched 5 min, and 1,400 out of the 10,000 or so were dropped!

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Ubuntu :: 11.04 - Substitute For CPU Scaling Applet?

Apr 29, 2011

Since the new Unity in Ubuntu 11.04 doesn't work with applets, like GNOME, I've lost an useful applet to choose the operating clock of my CPU as well as power profiles (Performance, Conservative, On Demand etc.).

I've looked into Ubuntu Software Center but couldn't find anything similar.

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General :: Frequecny Scaling Disabled Due To Cpu Bug?

Nov 15, 2010

i would ask how to fix " frequency scaling disabled due to cpu bug" that come when my linux server is booting. although it just a WARNING buti want to fix it.this show up after i move my virtual machine from my Acer Veriton Desktop PC with Centos 5and VMware 6 for linux into my HP Proliant server with windows 2003 and VMware 6 for windows

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Slackware :: Activating Cpu Frequency Scaling ?

May 15, 2011

Slackware64 13.37 multilib, generic kernel (full install)

BIOS: EIST and C3/C6/C7 State support are enabled.

I'm trying to activate cpu frequency scaling following the tutorial on slackwiki: [url]

I can't load any module.

Code:

I've tried all of them but the error is the same. I also rebooted to the huge kernel, however, it gave me the same error.

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OpenSUSE :: Firefox With Smooth Scaling Of Images?

Jul 1, 2010

I can't find a package of Firefox in OBS which is compiled with smooth scaling of images option turned on (as is the case in Windows version where this option is turned on by default). Could someone provide me a link from where I can get this package.

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Ubuntu Multimedia :: Can't Get GPU Scaling Method To Save

May 18, 2010

I managed to half fix my earlier problem of being unable to clone my desktop monitor to my TV. I set the configuration to TwinView, and the resolution to the same as my desktop (Doh) and that seemed to at least get my desktop the way it used to be.

The problem now is the TV. It's cutting off a lot of pixels, and I can get it almost to fit if I enable flat panel scaling and set GPU Scaling Method to "Centered". However, when I restart the X server, it always returns to "Stretched". I've tried saving it from nvidia-settings (nothing seems to happen to the xorg.conf file,) and ala [URL] s have tried to put some version of

Code:
Option "FlatPanelProperties" "DFP-0: Scaling = Centered"
or
Code:
Option "FlatPanelProperties" "Scaling = Centered"

[Code].....

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Ubuntu :: CPU Scaling Broken While Playing Video

Jul 26, 2010

I have a Core 2 Duo T9600. I noticed video playing performance has been really bad lately, and videos that used to work fine now stuttered. I would say it started happening 2-3 weeks ago. I discovered the culprit is that the CPU is scaling down to 800Mhz and sticking there. Running cpufreq-info yields:

[Code]...

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Ubuntu :: CPU Frequency Scaling Monitor & Hyperthreading?

Sep 2, 2010

I recently installed 10.04 and really like it so far, however I was wondering if it is possible to scale all hypertheading cores at once, currently I am using an applet for each and have to use several clicks to get into the desired powerstate.

I have read that with dual cores you will not have the option to go into different powerstates because it scales all cores at once, however the logical cores that show up with hyperthreading allow each to have a different power state, and will show up as different states if I use cpufreq-info in the terminal, so it seems like it is allowing it.

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Ubuntu :: Configuring Cpu Scaling To Set To Ondemand Upon Reboot

Sep 26, 2010

I know that this has been a frequent discussion post and I have read a large portion of the posts but none of them have fixed this problem for me. My computer seems to default to performance upon reboot (and yes I have waited the 60 seconds it should take to switch to ondemand). I have tried a number of the ideas posted throughout the web but have been unable to set the default upon reboot. Here is my current /etc/init.d/ondemand script:

Code:
### BEGIN INIT INFO
# Provides: ondemand
# Required-Start: $remote_fs $all
# Required-Stop:

[Code]....

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Ubuntu :: CPU Frequency Scaling Always Enabled - How To Disable

Nov 19, 2010

When I boot my machine (using a dual core 2ghz CPU) I always find myself out of "performance" mode (which I need), using only 1ghz per core.While this is easily fixable with "sudo cpufreq-set -g performance", I don't seem to be able to do it before having control of the machine. I would like to be able to boot with my CPU at full power.I would prefer to disable whatever is scaling down my CPUs to having to inject cpufreq-set to change governor. Anyone has any hint?I use default Ubuntu but I boot into a KDE4 desktop. But the same issue happens booting into the Gnome desktop.

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Ubuntu :: Taking Control Of CPU Frequency Scaling In 11.04?

Jun 24, 2011

Is there an easy way to take control of CPU frequency scaling in 11.04? There use to be an indicator applet but thats gone

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Software :: Aspect Ratio Scaling With Intel GPU's?

Mar 5, 2010

I have a friend who runs Ubuntu 9.10 on a laptop that has a 16:9 screen (1366x768) and an Intel 4500m GPU. I'm trying to figure out how to get 4:3 resolutions to display in their proper aspect ratio (black bars on either side of the image), rather than stretching to fill the whole screen. This is mostly for playing older games in fullscreen. I've tried messing with xorg.conf and xrandr a bit, but I didn't have much luck.

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Programming :: Scaling Of Directory Entry Lookup?

Feb 28, 2011

I need to create and access a very large number of directories (and by large I mean millions). Each directory's name consists only of numbers, which are incremented every time a new directory is created (so there will be directory 1, 2, and so on).Of course I could just dump all these directories under the same parent directory, but I reckon I would run into filesystem limits. Moreover, I presume that entry lookup is not a O(1) operation, which means that lookup does not scale well.

One solution is to use some sort of prefix tree for storing the data. In this scheme, the data for directory "1234" would actually be stored in "/1/2/3/4".This solution has the advantage that each subtree never has more than 10 entries, but the disadvantage of requiring as many individual lookups as the length of the path.There are also intermediate solutions: using a maximum of 100 entries per directory, "1234" would become "/12/34", per example.In order to choose the best scheme, I must know more about the scalability of directory lookup under Linux. What's the maximum reasonable number of entries for a directory before lookup becomes too slow? Does someone know exactly what are the limitations of the algorithm used for directory lookup?

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Slackware :: 13.37 Isn't Loading The Modules - CPU Frequency Scaling ?

Jun 10, 2011

For some reason, it seems that 13.37 isn't loading the modules I need for cpu frequency scaling. I've edited /etc/rc.d/rc.modules so that CPUFREQ is set to on. On 13.1, this would mean the powernow-k8 module would be loaded for my AMD cpu, and the subsequent "ondemand" governor would be loaded. However, for some reason this isn't being done during the boot process. I've tried it using both the generic kernel and the huge kernel (I'd been using huge for a long time before without realizing it.) Has anything changed in 13.37 with regards to CPU frequency scaling?

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Slackware :: CPU Frequency Scaling Will Not Load At Boot

Nov 16, 2010

I'm curious as to why some things are not happening at boot time (i end up having to manually load them).

In /etc/rc.d/rc.modules (near the bottom) i have set "CPUFREQ=on" and commented out any modules not specific to my hardware.

I have left this one uncommented:

Code:

And below the "### CPU frequency scaling policies:" i have;

Code:

uncommented. My scaling governor is set to:

Code:

Now whenever i reboot my machine `lsmod` is not showing any of either powernow-k8 or cpufreq* related modules.

I know i could use /etc/rc.d/rc.local with these:

Code:

But seems to defeat the purpose of rc.modules, any idea why they are not being loaded at boot... ?

Code:

With slackware64-current

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CentOS 5 Hardware :: Frequency Scaling Disabled Due To Cpu Bug?

Nov 16, 2010

would ask how to fix this warning that comes when i start my centos 5 virtual machine that run under windows 2003 std, previously it run smoothly with linux centos 5.

currently
Centos 5 Virtual Machine
____________________
VMware workstation 6 for windows
____________________________
Windows 2003 STD

previously
Centos 5 Virtual Machine
______________________
VMware workstation 6 for linux
___________________________
Linux Centos 5

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