The system load is a measure of the amount of work that a computer system is currently performing.

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What to do against high CPU load caused by compiz and/or gnome-shell?

Since yesterday I am experiencing high CPU load (caused by compiz). First I thought that this may be related by compiz/unity and switched therefore back to gnome-shell (uninstalled all unity stuff). ...
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1answer
890 views

Compiz high CPU

I recently installed Ubuntu 13.04 (my first Linux) alongside Windows 7. When I booted for the first time and ever since Compiz is eating up my CPU. When idle and doing nothing window management ...
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1answer
2k views

Ubuntu 12.04 GNOME Terminal (3.4.1.1) Xorg 100% CPU

after upgrading Ubuntu 11.04 to 12.04 (x64 arch) maximizing or resizing GNOME Terminal (3.4.1.1) windows larger cause the Xorg (1.11.3) or X process to utilize 100% CPU. Resizing smaller, moving ...
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1answer
352 views

13.04 - rsyslogd eating all the CPU it can

I'm on a VPS on ramnode.com, virtualized using OpenVZ, the installed OS was Ubuntu 12.10 but I ran do-release-upgrade to upgrade it to 13.04. rsyslogd was consuming ~150% CPU, I really don't know ...
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1answer
151 views

failure: DOES_NOT_EXIST, Ubuntu One, high CPU usage, no syncing

over the weekend I updated my computer to Windows 8. So far Ubuntu One was running smoothly, but ever since the update (clean, new install) Ubuntu doesn't sync any more. In Windows 7 it would start ...
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1answer
595 views

Is there an application indicator for CPU usage by core?

I love System Load Indicator (indicator-multiload), but it doesn't reflect the usage of the individual CPU cores, just the overall CPU usage. Sometimes I'll have an application max out a single core ...
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1answer
72 views

Lubuntu Task Manager always shows CPU usage at 100% even at idle

Is there a way to find out what application is causing the high CPU? Top shows nothing eating up the CPU. Even at idle my CPU is at 100%. Never changes. Never goes down. Always at 100% no matter what. ...
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1answer
162 views

Ubuntu 13.04 slowing down due to X taking 50-100% of CPU

I have strange issue. I use my PC mostly to run some Java app, execute some command line, watch movies and use browser (Chromium), eg. to watch YouTube, play some Flash games and read. Not much more. ...
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1answer
255 views

lowering CPU load average, Kubuntu 12.04

I've got a question about lowering CPU loads, if I understand correctly when I issue the 'uptime' command I get 3 values representing 5, 10 and 15 minutes of average CPU load. My current stats are ...
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1answer
460 views

ubuntu 12.10 xorg loads cpu core at 100% percent

ubuntu 12.10 xorg loads cpu core at 100% percent Not related to snd_ca0106. What am i doing wrong?
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1answer
59 views

How to lower Flash video resources usage for Chrome minimized?

I noticed that minimized or not makes no difference for CPU usage when playing Flash video in Chrome. How to fix that (seems obviously not right)? What makes it annoying is that I have video decoding ...
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1answer
139 views

Why is my CPU being used while doing nothing?

I have installed Ubuntu GNOME in BIOS mode on my MacBook (BIOS mode so that the proprietary NVIDIA drivers work. I need them for gaming.). For some reason, a lot of CPU is being used while not really ...
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1answer
79 views

My laptop is becoming slower at times, how can I figure out if it is a hardware or a software issue?

Over the last month my 15 month old laptop has started showing me 100 % CPU utilization. I used to have ubuntu 12.10 on it. I did a clean install of Ubuntu 13.04 on it and it was fine for a while. I ...
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1answer
144 views

Why does CPU usage remain at 100% after running Mathematica 9?

I have installed Ubuntu 13.04 and Mathematica 9 on a Sony Vaio VPCEA36FG. When I run a program in Mathematica, CPU usage rises to 100%. This is a normal. But when Mathematica finishes computation, ...
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1answer
922 views

ksoftirqd uses 100% cpu

I am running 32bit Ubuntu 10.04. A lot of the times ksoftirqd/0 or ksoftirqd/1 start using up 100% CPU for no apparent reason, and I am forced to reboot my laptop. Incidentally this also happens ...
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1answer
67 views

Why after a time of inactivity three cores of cpu go off?

I run ubuntu 11.10 on a Dell inspiron N4050 which has an Intel Core i3 CPU. After a time of inactivity sometimes few seconds, sometimes 2 or three miutes or even more CPU2 3 and 4 spike then go to ...
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0answers
202 views

Xorg lag spikes during gameplay

With almost any game I play, be it Minecraft, TF2, World of Goo or windows games running in wine, I get horrible lag spikes (after a shot time playing) that happen about every 15-20 seconds and last ...
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0answers
81 views

ubuntu 12.04 - fuser high cpu

The problem is fuser high cpu and server load high. root 20 0 7580 840 692 D 10 0.0 0:00.31 fuser 16061 root 20 0 7580 844 692 D 10 0.0 0:00.31 fuser 16062 root ...
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0answers
164 views

KAlgebra load problem

I want use KAlgebra on Unity. But loading of this program waste more time and after approximately 10 minute it be loaded but on any operation it freeze again. CPU load is so high when it is trying to ...
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0answers
58 views

System moniter incorectly shows CPU constantly on 100%,

Running absolutely nothing, my system monitor states that all four cores of my AMD Phenom II 945 are at 100%, although no individual process can be traced to cause this. At most, Firefox takes 4% of ...
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0answers
63 views

How to investigate scheduler issues?

I have a server process that should runs multiple threads at close to 100%, each on its own CPU. When I run the process on a RHEL box, the CPUs in question appear to stay pegged at 100%, according to ...
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0answers
172 views

Why is system monitor hogging CPU?

I had nothing better to do last night than stare at my system monitor. As I was engaged in this activity, I became concerned that my CPU usage was nearing 50 or 60 percent, even though I was doing ...
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0answers
378 views

Why is Lubuntu 12.10 using all CPU?

I want to install Lubuntu on a Pentium IV Desktop with 1GB RAM and I am currently trying it on Live-mode from a pendrive, just to be sure this won't give me trouble after proper installation to HDD, ...
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0answers
38 views

Is there anything software-related I can do, to make ubuntu play high-quality mkv files smoothely?

I've noticed that beyond let's say..a 20 MB/s bitrate, a movie would lag, played on my laptop.. It results in me missing the highest bitrated scenes of a movie.. And sometimes having to compromise ...
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0answers
70 views

How to determine what applications affect xorg/compiz load

Is there a way to tell which application causes huge cpu usage and huge load for xorg and compiz processes?
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0answers
52 views

Ubuntu 13.10 (upgrade from 13.04) unresponsive during high CPU load

I have a Samsung Series 9 laptop with a 4-core processor, 4GB ram and 12GB swap. During compiling an Android project it becomes unresponsive to the point where the mouse pointer stops moving, and it ...
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0answers
18 views

12.04 LTS could not reach an even CPU load

I have a 12.04 LTS server. 2 x XEON E5-2620v2 processors. I run same program on each processor. after some days, the second processor seems to be in error status. ( I monitor them with turbostat and ...
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0answers
29 views

CPU usage - where in filesystem

There are lots of CPU Usage questions appropriately answered by "top" etc, but I am writing my own monitoring app for one particular machine, and want to know where CPU Usage details are in the ...
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0answers
49 views

ubuntu 12.0-4 high load at boot with process “yes” using more than 50% slow boot and login time etc

i am using ubuntu 12.04 LTS 64bit on a samsung chronos series 7 NP700Z5A-S0AUS i had to redo the os, so i saved my home directory and just redid the operating system then i used synaptic and the ...
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0answers
65 views

Cpu usage over 20% on all cores fom compiz, Xorg, and at-spi2-registr

I noticed that on all 6 cores on my processor my computer is using 20-60%. No windows were open aside from the system monitor. I ran the command "top" in terminal and found that compiz is using ...
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0answers
12 views

stop ubuntu polling during suspension

Problem is Ubuntu is continually polling for devices during suspension. These polling's take place on pcie devices my laptop doesn't connect devices to possibly. They are on a cpu which could have ...
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0answers
230 views

why firefox 25.0.1 tack high cpu usage?

While i update my firefox to 25.0.1 in my ubuntu 12.04, It tack a high usage of the cpu, and i have to close it and reopen it to solve it. this problem happened as when i update my firefox. In last ...
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0answers
104 views

CPU *forced* to be almost 100% idle?

Yesterday the load on my Ubuntu Server (Ubuntu 12.04.3 LTS (GNU/Linux 3.8.0-33-generic x86_64)) went up to above 2.0 after restarting it. At the same time the CPU seems to be idle only (I could even ...
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0answers
120 views

`dnsmasq` and `nullmailer-send` use CPU time constantly

Since a couple weeks now, I have the following processes use a lot of CPU time: /usr/sbin/nullmailer-send -s (5%) /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interface ...
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0answers
162 views

Netbook Fan speed Lenovo x130e

After using Ubuntu 13.04 for about a week I have noticed that my netbook's fan speed seems to be moving faster that it should. In windows I would have moments where the fan would spin slow or shut ...
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0answers
264 views

Transmission causes mount.ntfs use up to 100% of CPU

Today I tried to download a large file (12 Gib) and save it to a folder on an NTFS drive using Transmission bit-torrent client. When the download reached approximately 60-70% Transmission started ...
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0answers
177 views

Ubuntu 12.10, plain install very slow at times (high CPU load)

I recently re-installed Ubuntu on my laptop (Vostro 1700; 2G RAM, Intel Core 2 Duo), and sometimes, a werid very high CPU load kicks in. It doesn't seem to do anything with the program that actually ...
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0answers
57 views

Work progress of operations in Libre Office

I have a quite large datasheet (about 400,000 rows and 8 columns) so when I work with it now (for example deleting thousands of rows) it takes ages (well, minutes) and the screen fades out (however, ...