CPU usage indicate how much of a workload is being handled by the CPU.

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2answers
202 views

JSON formatted text file makes CPU jump to 100%

I'm editing a JSON formatted text file in Mac OS X Mountain Lion (10.8.2) on a 2.3 GHz Intel Core i7 with 8 GB of RAM. The file is approx. 3 MB large so it's not very big. Anyhow this is making both ...
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0answers
512 views

How can I use sar to track processor and memory usage?

I'm running some load tests on a application hosted on one of my server and I wanted to track the processor and memory usage over a period of time e.g. 30 minutes. I've read that I can do this with ...
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2answers
6k views

HD 1080p .mkv videos don't play smooth. Is it a CPU, GPU, player or OS issue?

I have some .mkv 1080p videos but VLC can't play them smoothly. If I open the Task Manager, I can see that CPU is at 100%, because VLC uses as much as it can (95% or more). Then, I wonder Is it a ...
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1answer
3k views

Windows 8 not using max CPU speed on heavy operations

On my Windows 8 laptop, whenever I'm doing video transcoding with Handbrake, it seems to limit the CPU usage to 44% and the CPU frequency to 42% or 43% of max allowed. That probably means the CPU ...
3
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2answers
3k views

How to deal with a misbehaving dllhost.exe?

In the last few days, I've been having persistent problems by... something that causes a dllhost.exe process to spawn and consume minutes and minutes of CPU time. Procexp says: While fascintating, ...
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0answers
33 views

rundll32.exe : infected examples pushing cpu to %100 . Malware bytes couldnt detect it niether could Win Def how do i fix it [duplicate]

My laptop is almost useless. The rundll32 application is infected with malware. I have tried several malitious software removal tools all for nought.
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1answer
1k views

Asterisk Has Consistent 100% CPU Load On One Core

http://i.imgur.com/sySQfsH.png Please note the screenshot. I have an Ubuntu 12.10 box running Asterisk. I ssh'ed into the server the other day to find asterisk running at 100% CPU on one core, and i ...
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1answer
128 views

Ping vs CPU usage

I’m working on some measurements and the ping results are intriguing me. I tested it in several scenarios and the results are the same: the ping results are better when the CPU load is higher. The ...
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1answer
170 views

'top' output baffles me

top - 18:22:21 up 98 days, 23:26, 4 users, load average: 2.73, 2.85, 2.60 Tasks: 210 total, 1 running, 209 sleeping, 0 stopped, 0 zombie Cpu(s): 3.6%us, 2.5%sy, 0.0%ni, 87.7%id, 5.1%wa, ...
3
votes
1answer
286 views

How do I use cpulimit with ImageMagick?

I am converting (using ImageMagick) a directory of image files (using a bash for loop in shell). I notice that "convert" is taking up a large amount of CPU use (88% and up). However, If I try to ...
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1answer
17k views

High CPU usage by the “system” process

I have noticed that from some time my system is freezing and its probably caused by the high CPU usage which is caused by the system process. All applications I'm running is the Skype, TeamSpeak and ...
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2answers
1k views

How can I get a program to use slightly less CPU?

There's a program I run all day that does chess analysis. It's causing my computer to run consistently at 100% CPU Usage (According to Windows Task Manager), but despite this my computer seems to run ...
4
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1answer
483 views

Low FPS in some games, but hardware not fully used

I just did a little funny experiment in the game/sim "Train Simulator 2013". I normally have good FPS in it (around 30) at full settings. What I did was make a really, really long train so that the ...
2
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0answers
382 views

Dropbox causes xorg to use 100% CPU

For some time, I noticed that my xorg process uses up between 60 and 100% of the CPU (according to top). I also noticed that interactive work becomes sluggish, even on my multi-core i7 processor. ...
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5answers
5k views

how can force a prgram to use all of CPU capacity?

I have Windows 7 And a Intel Core-i5 CPU (4Thread) some programs like Firefox, only use up to maximum 25% of All CPU(only 1 Thread) And some programs like Winrar, use up to 100% of All CPU Can ...
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1answer
858 views

CPU Utilization never crosses 50% Windows 8

I have a Windows 8 RTM Enterprise with VMWare 9 installed. I run a couple of VM's but as you can see in the image below my CPU usage never crosses ~50% with 4 VMs running. Even if I run like 8 VMs ...
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1answer
1k views

linux: per-process monitor, every 10 minutes, with history access

I really didn't know a better way to ask my question, hence you get a horribly named question. I will explain what i want to do, maybe that will help you help me. I would like to have my linux ...
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2answers
177 views

Limiting I/O activity for a specific process - Linux

I run a convert *.tif bla.pdf command sometimes with say 60 images. Now this renders my computer unusable until it finishes. I tried using nice and ionice but it did not help much. Is there a way to ...
0
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1answer
178 views

Why does loading small images eat CPU time?

I noticed that (on my Ubuntu, and also on other Linux distributions, e.g., Debian) small animated images eat CPU time. When I open multiple Firefox tabs, the CPU raises to 100% and it's because of ...
3
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1answer
2k views

IPHLPSVC High CPU in Windows 8 x64

I was experiencing consistent high CPU usage in Windows 8 Pro x64. The cause was svchost running at a constant 25% CPU, even at idle. I checked the services that the svchost was running, and toggled ...
2
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1answer
257 views

Display CPU usage separately (without root privileges)

I need to display the CPU usage for each processing core on a single shared-memory 12-core (SMP) machine. I don't have access to install htop, else I would simply use that. I don't need fancy graphs ...
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3answers
6k views

Why won't Windows use the other CPU cores?

In Windows Task Manager the Performance tab shows the first CPU maxed out, the other 7 just idling along with the occasional spike. What gives? More info: I've got 8GB and only 4.5GB are being used. ...
2
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4answers
4k views

Windows Defender high CPU when idle

I noticed on my MacBook Pro from 2011 with Windows 8 that the fans start spinning when I leave my laptop idle for a while. I figured that it is Windows Defender which seems to be running. Is it ...
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0answers
241 views

Why is the clock speed readout greater than the maximum?

(click for full-size image) What is this madness? (I'm aware that the top number refers to the non-Turbo Boosted clock speed, but what of the others?)
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2answers
633 views

Is there a program that can pause another program?

Here is whats bothering me. For example, I play two games, Assassins Creed and MW3. When my friends call me to play MW3 I minimise Assassins Creed to go and play MW3. But Assassins Creed still ...
2
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1answer
327 views

What could cause the CPU Maximum Frequency to dip to 0% for several seconds?

I am testing a .NET application that has advanced GUI capabilities. One specific action takes a long time to complete, up to 5 seconds. While watching the standard Windows Resource Monitor, I noticed ...
0
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1answer
181 views

Decrease CPU usage or give priority

I have a i3 2nd gen system with nvidia 1GB graphics card and running ubuntu . The cpu usage becomes 99% when i run a 3D simulator and other OpenGL 2D application and i acquire the mouse movement data ...
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0answers
85 views

Backup on Debian interfering with other running programs

I've got a webserver on Debian 6. The system is also always running some processes sensitive to CPU usage. When I am using some of tools like rsync or tar, they are using CPU too much and my sensitive ...
0
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1answer
248 views

100% CPU in QuickTime H.264 decoder on Windows on Win7, except when using XP compat. mode

I have a Windows program that uses the Apple QuickTime API to play video. On Windows 7, CPU usage is 100% on one core, which I believe is why the playback is choppy. If I turn on XP compatibility mode ...
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3answers
9k views

Why does my CPU Usage reach 100% too often?

I'm using a dual-core processor and often see my CPU usage reaches 100%. I realize this may happen if I'm running too much applications, so when I know the computer starts to run slowly, I start to ...
0
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2answers
916 views

How to give high CPU to a Program in Windows 7

I am running a computation intensive (solving a number theory problem) standalone java program from eclipse on my Windows 7 machine. No other application is running. Now I started task manager and ...
2
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1answer
81 views

What is a good way of detecting which process just ran an intense process?

I have a Windows XP machine that is used as a music player in the house. It is relatively old and has a single core. Periodically the music will stutter and reviewing the task manager shows a short ...
2
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1answer
7k views

High CPU usage by 'svchost.exe' and 'coreServiceShell.exe'

I am having a laptop running on Windows 7 Ultimate 32-bit. Since past few days, my laptop is facing a serious problem. Whenever I connect to Internet, either svchost.exe or coreServiceShell.exe or ...
2
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0answers
205 views

Why does cpu usage never reach 100%?

I have a dual-core processor. I'm running two instances of the program below: void main(){ int i; while(1){ i=i+1; } } I run TOP and CPU usage gets up to 97%, however it never ...
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1answer
421 views

In OSX Terminal freezes on text select

Once in a while, if I've been using the terminal and click on it to select text, the terminal freezes, with the mouse pointer becoming the spinning wheel. Activity monitor also shows 100% CPU usage. I ...
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1answer
169 views

Limit CPU usage KSH script

I have a KSH crawler script that crawls filesystems on my network, and i would like to limit it to 25% cpu usage, so it does not impact running systems. I am currently using nice but when i run SED, ...
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2answers
873 views

Mountain Lion overheating issue have to do with launchd/Python?

So, Ever since I installed ML, my MacBook Air has been running SUPER hot. Opened up activity monitor, and everything seemed to be pretty normal, until I had it refresh every .5 seconds... and then I ...
4
votes
1answer
3k views

How to take full advantage of my CPU on VirtualBox?

I'm running Windows XP through VirtualBox on my i7-3610M laptop (Windows 7 Ultimate 64-bit). I've already assigned 8 CPUs plus 100% execution cap plus 4 GB RAM to the VM, but I don't think it's ...
3
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1answer
1k views

how to lower CPU usage for Ableton Live 8 in Mac OSX 10.6.8

While running Ableton Live 8 after a project gets to a certain size, the audio starts to get a bit choppy and distorted. My levels are fine and is not the cause of the lag and chop. I have samples ...
1
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1answer
396 views

Is it possible to give the RDC server more CPU priority?

I use a Windows Server 2003 machine for some CPU-intensive tasks. I'm wondering, is there any way of giving the Remote Desktop Connection server more priority, so that it doesn't hang while the server ...
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2answers
2k views

Computer experiencing slowdowns and lockups despite low cpu useage

My setup... i5-2300 nvidia gtx 550 ti 6 gigs ram 600 w ocz modular psu I recently reformatted and I am already experiencing drastic slowdown as soon as windows comes up. This includes repeated ...
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3answers
3k views

Skype, Netflix, Minecraft causing CPU to be 100% and not go down without restart

This issue started about two weeks after replacing the broken motherboard on this computer. The new motherboard is an MSI. When it happens, things like Skype calls, Netflix and Minecraft seem to ...
2
votes
1answer
801 views

Can kvm guest get more CPUs than it has?

When I run a vm with a single virtual CPU inside KVM, is it possible that the vm can actually get more CPU cycles than one whole CPU can has, if there is no other vm running in the host? In another ...
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1answer
80 views

Possible hard drive failure [closed]

If several system processes seem to freeze, while CPU and Memory usage remain low, does this suggest hard drive failure?
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3answers
436 views

Will multicore allow the same CPU usage as multi CPU [duplicate]

Possible Duplicate: Multi-core CPU: can I say I have a 3x2.1GHz=6.3GHz CPU? I plan to buy latop with with i5-2410M processor that have 2 cores (according to spec it can also have 4 ...
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2answers
1k views

How do I see the CPU load of a server?

What is the command to see CPU load of a RedHat Linux server?
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1answer
2k views

Windows 8 Release Preview - Extremely High Idle CPU Usage

Using Windows 8 RP, my computer is sustaining a 26.6% CPU usage while sitting at the desktop doing absolutely nothing. The other day it was over 50%. The entire usage is due to a process called ...
1
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1answer
536 views

100% CPU, only with ethernet connection

I run Windows 7 Ultimate (32), on a Dell Latitude E6500. After a while the CPU usage suddenly raises to 100% and only reset will help. Taskmanager does not show any program with a high CPU usage ...
0
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2answers
823 views

Are 1,000 threads normal for services.exe?

I noticed that my system is slowing down and services.exe often uses quite some CPU (around 10-40%), especially after waking up the PC. I find it hard to find out more about services.exe, and what is ...
3
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1answer
3k views

How to find process that's using 100% of CPU

As i'm looking at htop and top i see that my processor usage is 100% allways. But i can not see any process that is using that much CPU. Htop shows me only 1-2 processes that use around 5% cpu time. ...