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

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3
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3answers
1k views

Nice command without root privileges

I need to run dosemu with nice --20 from script. Problem is: a negative value can be applied only with sudo. Do you know any way to run nice command without sudo or simply run nice --20 dosemu from ...
2
votes
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 ...
0
votes
2answers
74 views

Why does my application crash without updating the log file (used '> my.log')

I am running mCruiseOn Server, which is a java based server side application (sockets, multiple threads, memcached, mysql) on a Micro EC2. It has been crashing often. I suspect memory usage may have ...
2
votes
1answer
705 views

Java using too much CPU

Trying to use either Eclipse or Apache Tomcat pushes all 4 CPU cores to around 60% cpu usage, and trying to run both at the same time maxes them all out. Tried deleting all the webapps I'd deployed ...
0
votes
0answers
276 views

Ubuntu and Lubuntu CPU usage during flash [duplicate]

Possible Duplicate: How do I fix Flash issues? I have been using the ubuntu based linux systems for about 2 weeks i switched to lubuntu 12.04 on the recommendation that my machine would be ...
3
votes
2answers
164 views

How can I get my mysqld-swamped CPU under control? [closed]

I was AFK for about 24 hours and came back to find gnome-system-monitor saying all four CPU cores on my laptop were running at full throttle. mysqld is taking up more than one full core; when I tried ...
5
votes
3answers
5k views

Why is Thunderbird pegging a core at 100%?

I have experienced 2-3 unexplained lockup over last 10 days. Today, I had a random lockup (no mouse, keyboard response, 100% CPU). But, when I finally switched (Ctrl-Alt-F1) to command line (it took ...
5
votes
3answers
3k views

How do I analyze my CPU usage over a long period of time?

I am just wondering if there's any Ubuntu app that can track my CPU usage. The problem is that I am currently using a quad core i5, whilst what I do most in daily usage is just browsing and rails ...
2
votes
2answers
444 views

load average is too high

i installed Ubuntu 12.04 on my laptop. Even if when I am doing nothing, load average is somewhere between 0.50 to 0.60. laptop configuration is toshiba satellite c640 Intel Core i5-2430M (2.3Ghz, ...
0
votes
1answer
71 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 ...
5
votes
4answers
17k views

How to impove Ubuntu performance on netbook

Most recent Ubuntu 12.04 seems to be quite nice and Unity (3D/2D) works fine for me, however not on my old Acer Aspire One any more. There was a times, when I switched from Windows XP to Ubuntu and ...
11
votes
1answer
3k views

Why doesn't htop display the same processes as top?

I have a home server sometimes running at a high CPU usage rate of about 50 to 70 percents. In htop, my favorite process manager, I can sort the processes by CPU usage, but often there isn't any ...
0
votes
2answers
23k views

Why ubuntu 12.04 Operating System too slow..?

I was using ubuntu 10.10 from last year. every thing was Ok with that. recently I've installed Ubuntu 12.04 in place of 10.10, after installing that on my Dell laptop, I started to feel uncomfortable. ...
3
votes
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 ...
0
votes
2answers
466 views

CPU working hard while sleeping after upgrading to 12.04

I just upgraded to 12.04. I noticed a new weird behavior that did not happen on 11.10. When I lock the screen, or when it sleeps automatically after the computer is idle, the CPU fan starts working ...
3
votes
0answers
309 views

Thunderbird CPU usage [duplicate]

Possible Duplicate: Why is Thunderbird pegging a core at 100%? Is there any reason that Thunderbird uses 18-30% of my CPU constantly. This normally wouldn't be a problem but I like to leave ...
4
votes
1answer
1k views

Ubuntu One Taking up 40-170% of CPU usage with i5 processor

I am backing up all of my photos and docs, so I have purchased 160GB of storage. Yes, it is a lot of photos... I am finding that my system is running very slowly while the backups are taking place, ...
1
vote
3answers
5k views

Compiz makes CPU run at 100% when in suspend mode in 12.04

Recently I installed Ubuntu 12.04 on my laptop. And I found that when I left my laptop suspend mode, the Compiz hold CPU at 100% all the time until the laptop woke up. Can anyone tell me what is ...
8
votes
4answers
7k views

Compiz using 8% - 25% cpu continually

Any tips? Running Intel Core 2 Quad x64 ubuntu precise 12.04 Dell OptiPlex 760 nvidia graphics driver UPDATE: Unfortunately I uninstalled Ubuntu... Just couldn't deal with the incompatibilities and ...
2
votes
1answer
893 views

Compiz consuming lot of cpu when display is off in 12.04 [closed]

I just upgraded to 12.04 this weekend, and since the upgrade, whenever the screen is turned off (after 5 min of inactivity), the fan starts to run like crazy, making a lot of noise. When I get back to ...
1
vote
2answers
2k views

System monitor detecting load averages higher in 12.04?

In 11.10 my load averages stayed around .06.I ve been on 12.04 precise for 3 days now and have noticed my load averages stay around 1.06 at all times.Can someone tell me what is going on?I was told ...
3
votes
2answers
522 views

12.04 runs my CPU up to 99%

12.04 runs my CPU up to 99% and then lags to the point of having to shut down the laptop to restart it manually.Why is my CPU running so high and what can I do to fix it?
4
votes
2answers
498 views

How can I diagnose what process is using CPU time?

It's a "problem" that i have since 11.10, now I've upgraded to 12.04 (fresh install). Even while ondemand governor is set, and the computer is idle, fan goes on and doesn't want to shut down. Images ...
6
votes
3answers
3k views

High CPU usage when watching youtube videos (HTML5)?

When I watch a youtube video, especially in HD, the browser I'm using (chrome) will use in excess of 200% of the CPU. This causes the video to stutter and also makes my laptop very hot. Is it normal ...
0
votes
1answer
471 views

How to make an app start with a lower 'nice' value

I would like to know how to make a program (Eclipse) always start with a lower 'nice' value. I tried to manipulate ‘/usr/share/applications/eclipse.desktop’ - with no success. Exec='nice -n -10 ...
19
votes
2answers
4k views

What's the fairest way to monitor total CPU time - per user?

On a multi user system, I want to measure each user's CPU usage in seconds of cpu time. For the purpose of this measurement, I assume that if a PID belongs to a user, this user is causing the CPU time ...
3
votes
1answer
2k views

What is fuser and why is it so processor hungry?

My computer became too slow and according to top fuser is consuming all available cpu time. What the hell is that? What do I have to do get rid of it?
2
votes
1answer
727 views

How can I decrease the frequency of the fan running on my laptop?

I am an Ubuntu 11.10 user with a laptop with a noisy fan. the fan runs way too frequently, blowing when all I'm doing is web browsing. I am willing to sacrifice speed for a less hot laptop, can ...
3
votes
1answer
3k views

'gnome-shell' process causing 100% Overall CPU utilization? What is going wrong?

Since morning today, my laptop has been freezing up frequently. Only option available at that time is to kill x-server(as ctrl-alt-backspace is the only thing which works that time). I checked "Task ...
1
vote
1answer
229 views

Does removing extra workspaces in Unity2d impact CPU or RAM performance?

I never used workspaces, so I have set number of workspaces to 1. After restarting, unity seems to be kinda snappier. What`s in theory?
1
vote
0answers
137 views

New system runs WAY slow.. What to look for? [duplicate]

Possible Duplicate: How can I improve overall system performance? I have a new Ubuntu installation (11.10) on an older machine (Intel P4 1.7G). System monitor shows CPU usage pegged most ...
2
votes
1answer
4k views

NTFS drive mounted generates huge load

I've got an NTFS drive mounted and on I/O it generates huge amounts of load. I'm now running my CPU (amd fusion dual core) at 100%... both. My load average is 3.47 at the moment. Anyone an idea to ...
5
votes
1answer
582 views

Why does Gnome System monitor never tell me what process is actually using the CPU?

I have an applet in my Gnome Panel which shows me the current load of my CPU. This is important on my laptop because it's a slightly older machine, and so knowing when I should let it finish one task ...
1
vote
1answer
193 views

random bursts of CPU activity

I am running a wubi installation of ubuntu 11.10 64 bit and every hour or so there is a random burst of activity where the CPU is at 100% and I have trouble just browsing on firefox. This can last ...
16
votes
1answer
6k views

identify which chrome tab is using up CPU?

I sometimes have a bunch of tabs opened in Google Chrome, which I believe creates a new process per tab. I would like to be able to pinpoint the tab that is using up the CPU. Is there an easy way to ...
2
votes
3answers
576 views

How come Ubuntu is slowed down even after all resource-hungry apps have exited

I have been wondering this for quite a while, thought I might give a shot asking it here. Scenario: I use an application that used a lot of resources (for example image batch processing or ...
1
vote
0answers
254 views

unrar causes CPU spike and can't be killed [closed]

From time to time I see my CPU usage spike and my laptop starts to heat up. I run top and see that an unrar process is running and consuming anything from 40 - 99% of CPU capacity. I try to kill ...
3
votes
2answers
4k views

How to stop “aptd” from maxing out my CPU?

After running the "top" command in the terminal, I see "aptd" running which causes the cpu to run at 100%. If I'm updating the system, or installing a software, I see it. I only recently noticed it. ...
2
votes
2answers
387 views

2000+ processor wake ups..?

I have dell xps 15 with nvidia 525 with optimus. I use ironhide for optimus support. Under normal conditions I can see 2000+ processor wake ups. As a result of which my battery dries up rapidly. In ...
1
vote
1answer
1k views

How to use cpulimit on ALL cron jobs?

Using Ubuntu Server an AWS micro box, so if the cpu utilization spikes AWS will virtually kill the CPU for the box (for about 30 sec). nice doesn't solve the problem, but cpulimit does (I use it in ...
1
vote
0answers
404 views

CPU usage under ideal condition [closed]

I'm using dell xpx L502X (i7 - core) with ubuntu 11.10 with nvidia 525 with optimus support. I have installed ironhide for optimus support on my laptop. When I look at system monitor even under ...
3
votes
6answers
8k views

100 % CPU usage with “on demand” setting due to Xorg

I upgraded to Oneiric (from Natty) on my IBM Thinkpad X41. With the default CPU speed setting of "on demand" I get 100 % CPU usage. In System Monitor (nb: view > all processes) the dominant process ...
4
votes
5answers
7k views

Init process at 100% CPU usage

I have a Ubuntu x64 machine on a OpenVZ VPS account on a QuadCore processor with 1GB/2GB(burst). A few days ago I've managed to successfully update it to 11.10 Oneiric Ocelot. There's only one ...
2
votes
1answer
1k views

Clementine has high CPU usage even after shutting it down

I have an issue with Clementine: sometimes (even after switching it off) it takes up a lot of CPU like on the screen here On the screen there are visible 2 instances of Clementine but both of them ...
0
votes
2answers
648 views

How to measure single app CPU usage over time?

I'm doing some performance test for apps in Ubuntu. Is there a nice way (or an application) to measure the CPU usage of a single app? I would be great if it was also possible to create charts of CPU ...
1
vote
0answers
335 views

Why does Xorg take all available CPU power when I run Update Manager? [closed]

I am using Xubuntu 11.04 with the default nouveau driver for nVidia Corporation NV17 [GeForce4 MX 420] graphics controller. Xorg takes all available CPU power, if I run Update Manager in this system; ...
7
votes
2answers
4k views

How to log memory and cpu usage of an application?

Similar to question How to log CPU load?, I would like to log memory of a process. The process I want to log, is killed on a remote server, and I want to find out the CPU load and the memory usage ...
2
votes
4answers
4k views

rsyslogd using 197% CPU for the past few days

I'm running Natty server on the rackspace cloud and rsyslogd as been churning away usin 197% CPU (quad core machine I believe) for the past few days. Is there anything I can do to figure out what is ...
4
votes
1answer
4k views

High CPU usage with Team Speak 3.0.0-rc2

The CPU usage is always around 40 percent. I use push-to-talk and I had uninstalled pulseaudio. Now I use Alsa. I don't even have to connect to a Server. By simply starting TS the cpu usage goes up ...
8
votes
1answer
9k views

why is rtkit-daemon eating 100% of my CPU?

I sometimes have an rtkit-daemon process eating 100% of my CPU and making the system unresponsive. I reboot and things are fine after that. What is rtkit-daemon supposed to do and why would it be ...