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

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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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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
594 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
154 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
752 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
256 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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1answer
327 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
399 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
515 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
39 views

Ubuntu 12.04: memory always above 80% and swap around 50-60%

I have been using ubuntu 12.04 on my system for a long time. Suddenly the system has become too slow and cpu utlization is always above 80%. I have attached the screenshots which displays the usage at ...
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1answer
248 views

can the applications at “startup applications” be less encumbersome?

With this tip I saw there is a total of about 60 applications being started.. I have to sit back and wait about 45s while the desktop is unresponsive... How startup applications work? can I tweak ...
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42 views

Load increasing to very high levels periodically

Lately the load on my computer has been increasing significantly (above 10 at times) when I log in to gnome. The load decreases when I switch to one of the gui-less login options (ctrl+atl+F1 sorry I ...
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1answer
165 views

Pulseaudio CPU load after Skype starts during session restoring

I have Kubuntu 14.04 upgraded from 12.04. If Skype starts up with system automaticly, by previous session restoring, the pulseaudio loads one core of CPU. But when I restart the Skype, everything is ...
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1answer
655 views

Ubuntu 14.04 kworker hogging cpu; fix didn't work

Fresh install of ubuntu 14.04 on a touchscreen Toshiba Satellite laptop with intel graphics. I tried to follow the fix here: Why does kworker cpu usage get so high? It didn't work; my problem seems ...
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1answer
433 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
101 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
223 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
86 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
211 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
1k 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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0answers
77 views

One of my two cores suddenly flatlines at zero percent

I've been using Ubuntu for about three months, and twice now the first core of my dual-core laptop suddenly flatlined at zero percent for no apparent reason, while the second one seemed unaffected. ...
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1k views

Ubuntu CPU load

I'm new to Linux world and I have a problem with my fresh installation of Ubuntu 14.10 64-bit. My processor is Intel® Pentium(R) D CPU 2.80GHz × 2 with 4 GB of ram and GeForce 8600 GT/PCIe/SSE2. When ...
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70 views

16 cores are not being utilized out of 80 cores

Recently I discovered that our server does not utilize all 80 threads anymore in the system. It looks like if 16 cores are always idle, despite the high system load. Its a Dell powerEdge R900 server, ...
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0answers
66 views

How much context switching is too much?

I am running Ubuntu Server 14.04 on an Lenovo IdeaCentre d400. The load average is never under 1.0. So I started to take a deeper look. I do not find anything that could be responsable for this load. ...
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244 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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55 views

Matlab makes CPU usage “oscillate” at rest

I find this very weird, and I am not sure whether this happened before the last kernel upgrade. It seems that even when I am not doing anything with Matlab, it uses the CPU cyclically for some reason. ...
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219 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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63 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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69 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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39 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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11 views

High CPU usage in the processes related to postgres in ubuntu 12.04

My Ubuntu server 12.04 hangs quite oftenly (say once in a day), after hard reboot it starts running normally. The server is Intel Xeon having 2 CPUs with 8GB RAM.There is high CPU usage in the ...
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2 views

xfce4-cpugraph-plugin does not show cpu usage

in my xfce panel when i add a xfce4-cpugraph-plugin item it does not show the CPUs usage, after the installation all was working, but after few day something happened (theme changing?). what could i ...
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19 views

Gathering server CPU load statistics

I have a small server under Ubuntu 12.04 LTS running some apps. Since the CPU load has increased it began to lack resources from time to time. I would like to have a way to produce a graph of CPU load ...
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42 views

Ubuntu Battery Issues

I'm using Ubuntu 14.04 on an Acer 5750g (CPU i5 2410m, Gt540 M, Samsung Evo840 SSD) I've been experiencing problems concerning temperature, battery life and (thus I guess) CPU usage. I've installed ...
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16 views

Can I tap my notebook to a powerful stationary computer's CPU / GPU / RAM resources example via LAN?

THE GENESIS Currently I have a little experience with NoMachine, a great tool for cross-OS remote desktop, however this program has problems with H264 support while the codecs are actually working on ...
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115 views

Java & High CPU usage

I use a certain java application to trade the stock market and it consumes 90% my CPU power. And the CPU temp usually remains around 90c. This is a real headache. What causes this problem and what are ...
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89 views

My mouse is suddenly very slow under Ubuntu 14.04

I'm using a i5 Nuc, 8GB of RAM, SSD drive and had no problems, but since 2 days the mouse is lagging and some websites behave slowly. I don't know the reason for this. Is there a way I can find out ...
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315 views

Ubuntu doesn't load, can't even open a terminal to type commands, even after boot repair

When I start Ubuntu I only get my desktop picture and am unable to open a terminal to type any commands. When I try a Guest session all I get is a red Ubuntu backdrop, nothing else. I tried boot ...
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65 views

Getting Linux to downclock and lower the V-core of my CPU at idle

So when I boot into my Windows 8 partition, Windows automatically downclocks my CPU and lowers it's V-core so that the idle temps of my i5-4570 CPU go down to 25 C. Now on Ubuntu on the other hand, ...
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68 views

ubuntu 14.04 works full load

I have X61 lenovo - cpu T7200 dual core and 4 gig memory ! I installed ubuntu 14.04 and did all updates and deactivate all animations and the full search. however, still just opening four tabs on ...
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19 views

See load of CPU's and RAM over 3 computers

I was just wondering if it is possible to see the load of CPUs and RAM usage over different computers. This way I can decide to launch a process in a computer or another. Just as the 'sensors' ...
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29 views

nautilus consuming too much cpu for retrieving thumbnails for applications

some screen shots about the problem Now I'm killing the program. The output in terminal for nautilus is GLib-GIO-Message: Using the 'memory' GSettings backend. Your settings will not be saved or ...
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851 views

High CPU load - Ubuntu 14.04

I noticed that sometimes when browsing (with other processes in the background), I get very high CPU load for the browser process (over 100%) and the computer becomes really slow. I tried switching ...
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0answers
77 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
30 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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42 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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85 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
157 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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13 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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434 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, ...