Fedora :: CPUs Are Running About 60%?
Feb 13, 2011
I've got some weird stuff going on with my F14 setup, I seem to be getting loads of CPU activity with nothing happening! Both CPUs are running about 60% as soon as I log in to my normal account. If I log into another account it drops to about 15%. Sometimes when I log out I get a message saying that 'an unknown process' is still running. Looking at processes it is not apparent what is causing this as nothing is using that much CPU. It does show some processes with no name, which seem to come and go and change ID. The only things I've installed recently are dropbox and myth tv. I've removed dropbox but no change. how I can find out where my CPU time is going!
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Mar 12, 2010
Not so long time ago I have installed Centos 5.3 on my AMD Phenom II X4 server (I am hosting game servers on it). Only today I noticed, that cpuinfo shows me only two CPUs. I watched for the info in the dmesg and found there that the system boots up only 2CPUs.Here is some info from the dmesg:
Linux version 2.6.18-164.11.1.el5 (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Wed Jan 20 07:32:21 EST 2010
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 0:4 APIC version 16
[code].....
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Apr 1, 2011
I've got a Toshiba Satellite L655D-S5109 and the gnome cpu temp applet only shows 3 cpu's. Its a dual core AMD Turion II - I would have expected 4 cpu in the temp applet.
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Jan 8, 2011
I'm looking for a CPU frequency applet which monitors the frequency of ALL CPUs at once.
Does it exist such applet?
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May 9, 2010
I have just purchased an AMD Phenom II 1055T 6 Core CPU to replace my aging CPU. The problem is only 1 core is visible to Ubuntu, Does it actually support 6 cores?
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Feb 20, 2011
My setup:
HP XW8200
2x 3600MHz Xeon CPUs
4GB RAM
Quadro FX3800 PCIe graphics
Dual boot Ubuntu 10.10 32bit (primary use) and XP (gaming use only)
The issue I have is that the CPUs seem to run at 100% constantly in Ubuntu meaning that the CPU fans are constantly at high. This makes the machine sound like a wind tunnel!
It is nice and quiet in XP.
I installed GKrellM monitor which is what is telling me about the 100% CPU useage.
Would using the 64bit Ubuntu make any difference? (dont really want to reinstall tbh)
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Aug 1, 2011
1.What is a time slice?
2.Do CPUs cut procceses in half? When is a process stopped for another to take place?
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Mar 12, 2010
Not so long time ago I have installed Centos 5.3 on my AMD Phenom II X4 server (I am hosting game servers on it). Only today I noticed, that cpuinfo shows me only two CPUs. I watched for the info in the dmesg and found there that the system boots up only 2CPUs.
Here is some info from the dmesg:
Quote:
Linux version 2.6.18-164.11.1.el5 (mockbuild@builder10.centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-46)) #1 SMP Wed Jan 20 07:32:21 EST 2010
Command line: ro root=/dev/VolGroup00/LogVol00
ACPI: Local APIC address 0xfee00000
[Code]....
Am I correctly understand that something wrong in BIOS? Or it is something else?
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Jun 23, 2010
I'm using Ubuntu 10.04 x64, and I have an AMD Phenom 2 x4 940 CPU. First I have to underline that four cores worked perfectly in previous versions of Ubuntu as well as Windows.
When looking at system monitor it tells me that I have two CPUs/Cores, it should be four.
This is the output of CPU info:
Code:
processor: 0
vendor_id: AuthenticAMD
cpu family: 16
model: 4
[Code].....
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Jul 28, 2010
I'm buying a new fanless desktop unit with 2 x 1.66GHz Intel Atom D510 CPUs. The vendor calls these a '64-bit processor'. But the unit has just 4Gb of memory and I don't want the fuss of 64-bit for the basic stuff I do. So I asked them to load Lucid-32.
Will the processors work with 32-bit?
The vendor tells me 32-bit won't make full use of the 4GB, only three and a half, but all else will be fine. So they'll load 32 and I'll try a live DVD of 64 in my own time. But I thought 32 bit was fine up to and including 4GB of memory?
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Dec 10, 2010
I have an i7 980x (hexacore) machine, installed with ubuntu 10.04. Has the stock 2.6.28-15-server #52-Ubuntu SMP kernel. When I check my /proc/cpuinfo, I can see only 8 CPUs. Was expecting to see 12. Is there any way to get all my 12 CPUs.
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Sep 9, 2010
When running cat /proc/cpuinfo under Linux, a variety information is kicked-back. For example:
> cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz
[Code]...
First, what does all of that actually mean? I see I have a processor 0 and processor 1. Does that mean Linux is reporting both cores of the CPU, or, since it is a VM, the two that I happen to have right now (even if they're on physically different CPUs)?
Second, how can I get a similar information dump form the command line in Windows? Third, is there a way using either platform to determine the number of physical CPUs versus total CPU cores?
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Apr 21, 2010
I have a high resolution file (1080p) encoded with H.264 and when I play it back, it lags at certain parts (and enough parts to destroy the job of watching the video).
I don't think that my computer is that crappy and it has been able to play many H.264 encoded files with high resolution - so there is always a possibility that this file is just encoded poorly (lacking a better computer, I cannot test).
For information, I'm running Ubuntu 9.10 64 bit. I have a Intel Core2 Quad CPU Q9550 (@2.83 GHz). I have 8 GB of RAM (forgot the speed off the top of my head). And a Nvidia GeForce GTX 280 (1 GB of memory).
During the playback, the RAM is far from being completely used; however, it seems that one (and only one) of the cores of my CPU becomes saturated at 100% precisely at the moments in which the file lags. When the CPU utilization is below 100%, there is smooth playback.
My question is - is it possible to use all four cores during playback, or is such a process not capable of easy parallel processing.
Another side question is, how can I be sure that my GPU is being used in the decoding process - or is that also being under-utilized?
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Oct 29, 2010
While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL]. The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?
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Jan 31, 2011
While searching for the maximum numbers of CPUs supported by CentOS 5 x86_64 I found the following page: [URL] The question I have regarding the specified information ("64/255" logical CPUs) is, which number means what. Does this mean 64 real CPUs with a maximum of 255 cores/hyperthreaded CPUs or something similar or totally different?
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Mar 14, 2011
I am somewhat familiar with SGE (Sun Grid Engine, now Oracle Grid Engine) commands but am having a problem when running parallel jobs.
Present Machine configuration:
machine I - 12 cpus
machine II - 12 cpus
machine III - 12 cpus
.... so on ...
One_machine - 16 cpus
(I have all machine of 12 cpus and 1 machine having 16 cpus)
I want to schedule jobs on these machine such that if I ask for 12 cpus - my jobs should execute on any of the machines which has all 12 free cpus (eg machine I or machine II) in this case.
Eg. suppose I ask for 24 cpus
Option I : 12@machine1 12@machine2 ----- I need this
Options II : 10@machin1 10@machine2 4@machine3 ---- I don't need such a distribution
Hence, Option I is ideal here. Also, when running 12 jobs on machine1 (say) - even if all 12 cpus are not being used at some instance of time, none of the 12 cpus should be freed.
In short, until my run finishes, all blocked cpus should remain blocked.
If you may understand, the purpose here is to run some performance tests.
I'm using 'qrsh' to launch jobs.
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Nov 9, 2010
I have a OpenSuse Linux system that needs to use only one core of its four core processor. I tried putting this in the menu.lst file.
###Don't change this comment - YaST2 identifier: Original name: linux###
title openSUSE 10.3
root (hd0,1)
[code].....
Am I placing the nosmp and maxcpus options in the proper location?
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May 1, 2010
I have fresh install of Ubuntu 10.04 LTS Added Wine from Software Center but have no any Win apps loaded or running yet. I have also enabled visual Effects and the system installed and enabled NVidia's driver for the video-card after which the picture quality improved.
Here is the screen of my CPU monitor (sorry labels arre in Russian but the charts are quite intuitive) As you can see this 100% load "jumps" from one core to another periodically. On the Processes tab there is nothing fancy:
Less than 10% processes load. I have tried to play with CPU Clock Gnome widget, it doesn't really change the picture whether I use MAX CPU clock of 2Ghz or reduced power-saving 1,2 GHz. I have found couple similar cases on forum but see no solution so far.BTW, I have already launched the update manager and currently Ubuntu does not offer any new updates.
[code]....
PS. In the attachement - Report of some built in System Diag Tool
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Feb 28, 2011
I'm using bioinformatics programs i run from console on my system or on the server and some of them don't have a option for use multiple cores/cpus.There's a way to force it? some programs have to run for days and use a single core...
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Jul 19, 2009
After "yum install emacs" & "yum install emacs-ess", I was able to install emacs on my X86_64 running Fedora 10.
If I run one session of emacs everything works fine.
Once I start a second session and try to resize or move the emacs window, the system stops responding.
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Mar 22, 2011
When I run top d 0.5 on my machine and I press 1 to enable the SMP View, I notice that all of the CPUs keep toggling between 100%idle and 0% idle.
The odd part is that when a CPU goes to 0.0% idle, I would expect to see one or more of the other columns peek, but they are not.
What is causing this?
Code:
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Sep 12, 2011
Im running 64bit centos 5.6 and using virt-manager.On one of my guest OS's, Windows 7, The max Physical CPUs is 2, you can have unlimited CPU Cores however. (like my machine i use for work has 1, 4 core processor).The issue im having is xen only allows you to set the vcpu arguemnet in your xen config file. How can i set it so that 1 CPU has several Cores just as windows would recognize this machine if i were installing directly to the hardware vs via a VM.Ive searched for 2 days staright trying to address this issue, very little progress, Does anyone know where a XEN support forum is? all i get is the citrix xen support forums.
here is the best info i have found on this, but i dont know how to change this for my CPU to work, when i enter this in my xen config it essentially ignores it and just takes the value of vcpu= so windows shows 2 CPUs each with ONLY one core. Id like 1 or 2 CPUS showing Several cores.The physical Hardware is 2x Xeon 5300 Quad Core CPUs.
> # Expose to the guest multi-core cpu instead of multiple processors
> # Example for intel, expose a 8-core processor :
> #cpuid=['1:edx=xxx1xxxxxxxxxxxxxxxxxxxxxxxxxxxx,[code]........
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Jun 8, 2010
I am noticing problems accessing the firewall gui and mounting the second hard drive in my PC running Fedora 13. This is only when I am accessing the machine with VNC. If I am sitting in front of the physical machine, I have no problems at all. I would like VNC to behave more like I am sitting in front of the computer. Is there a way to do this? Thank you in advance for your feedback.
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Aug 3, 2009
Background is this: Laptop has an internal h/d (obviously) so I removed it from laptop. Then set Bios to boot from external h/d. Installed Fedora 11 on ext. h/d no swap partition as drive already has 4 partitions. Fedora ran lovely!! I then replaced internal hard drive but left bios to boot from external hard drive. Boot screen for fedora came up, hit enter and fedora started loading. The little balloon started filling up, got to a quarter full and then screen went black. Had to reboot to get going again,same thing happened. Can anybody tell me what may be causing it,i.e. black screen. Fedora boots up and runs lovely with internal h/d removed. Any help very gratefully received. M/c has intel dual core processor, 3 gig of ram.
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Jun 2, 2010
I'm happily running Fedora 13 as a guest OS in VMWare 3.0.1, except that it has one little issue.Sometimes the mouse would get terribly confused. It generally happens when I hit the mouse scroll wheel or when I move a window around very quickly. After that the left mouse button would stop working...
Anyway I found an easy workaround which I thought I'd share.Just hit 'enter unity' on the VMWare player menu. Then you can immediately exit unity again. This somehow resets the mouse into its normal state...
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Apr 22, 2010
First off, I want to say that I'm loving Fedora 13. The problem is, I have run Windows 7, Vista, OS X and Ubuntu on this custom set-up. They've all run very fast, without a hiccup, but for some reason Fedora 13 seems to be running very slow. Symptoms include, but are not limited to apps like 'System>Administration>Services' make my CPU run at 100%Is there anything I can do to troubleshoot why it's running slowly?I'm running 8GBs RAM, an E6600 Intel Processor, on a Gigabyte ga-ep45-ud3p, rev1.1
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Mar 6, 2010
The supplied version seems to be 1.0.5, which in addition to not having support for Blue Ray, etc, has this problem, which the later version does not. Ideally, a packaged version would be best. I tried compiling from source, but the cmake dies looking for SAMPLERATE_LIBRARIES, I have libsample installed, but have no idea how to tell cmake to use it, or even if that would work. Version 1,6 comes standard with Kubuntu, which I also have installed on the same machine as F11 and Windows 7. Interestingly, Windows 7 exhibits the same behavior as Fedora (trouble writing DVDs from files over a network) while Kubuntu with k3b 1.6 does not.
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Jan 16, 2011
I have installed VLC. but it is not running in fedora 13. Several other applications are also not running
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Dec 25, 2010
Hi. I have Ubuntu 10.04, nm-applet is running in the background, my battery icon and sound icon are showing but my network icon has been missing for the past 2 days. It was working fine before but now it's not. How can I fix this issue if I don't have an ethernet cord? Is there a way to roll back the recent updates or do I need to reinstall my network manager?
I've tried restarting the system and I've tried killing nm-applet and reloading it using Alt F2. I get some Debug error.
When I try to run nm-applet --sm-disable
It says an instance is already running and then gives me a warning.
I tried removing "iface eth0 inet dhcp" from /etc/network/interfaces and then tried restarting by "sudo /etc/initi.d/networking restart"
It says:
What can I do to connect to the internet? I have a flash stick if its possible to download a .deb package on this mac and transfer it over to my other laptop to fix the problem. If its possible.
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Jul 26, 2010
I presume there is something in the JWM window manager - or Puppy Linux Lupu 5.01 itself that is conflicting with the normal loading of GMPLAYER....
I would like to know how to troubleshoot, and fix this problem if possible (even a workaround would be great).
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