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

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1answer
169 views

redirect awk information to stdout

I am trying to gather information for CPU use for all the processors in a text file. mpstat -P ALL -u 1 | awk '{print $4}' > cpu.txt && mptat -P ALL -u 1 | awk '{print $4}' | tee cpu.txt ...
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2answers
2k views

Media player classic starts at boot up CPU 100% not listed in msconfig. What is going on?

Every time I boot windows, media player classic starts running in the background (no actual MPC window opens) and hogs the CPU at 100% until I kill it. In process explorer the parent is explorer. I ...
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2answers
59 views

Is High CPU Usage Dangerous For My Computer?

When I play Publishing Clearing House Slots, eventually Norton advises me that my CPU usage is running high. I know nothing about computer temperatures; am I at risk for damaging my computer?
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1answer
448 views

How to identify what is causing sys% in top?

top on one of hex cores with hyper threading shows the following Cpu0 : 2.3%us, 58.8%sy, 0.0%ni, 38.2%id, 0.7%wa, 0.0%hi, 0.0%si, 0.0%st Cpu1 : 4.7%us, 62.1%sy, 0.0%ni, 31.2%id, 0.7%wa, ...
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5answers
877 views

Negative impacts of using high CPU And memory for a few seconds?

I built a crawler for my own personal use that queries many pages with curl_multi_exec. It uses 98% CPU and memory for 10 seconds on my laptop. I'm only crawling around a 1000 pages, but I wanted to ...
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3answers
657 views

How do I find out I have a high cpu activity on my macbook air, before my battery is used up?

I have a Macbook Air. Occasionally the battery runs down very quickly and it's caused by a high cpu process. My problem is I don't know this is happening - there's no loud fan noise, just a quicker ...
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0answers
282 views

Why is AppleIntelCPUPowerManagement devouring my CPU?

Once in a while, for not apparent reason my Macbook Pro (OS X 10.7.5, late 2011 model) will ramp up to 65%+ CPU usage by "System", and stay there for upwards of an hour. If left long enough, the ...
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2answers
6k views

System (ACPI.sys) is always using about 15-20% of my CPU

I have a 13" Sony Vaio laptop (model SVS13A1C5E) and I upgraded it to Windows 8 with a fresh install, after upgrading I installed Win8 drivers listed here. Now I have a problem with the CPU usage (it ...
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2answers
5k views

Shell script that monitors CPU usage and terminates services with high CPU utilisation

We have a Windows 2003 server where 3 services are running constantly. Sometimes these services consume over 90% CPU. Restarting these services returns normalcy. I need a script/program that will ...
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2answers
436 views

CPU hitting 100% when flash or game is running after dropping laptop

I have a quad core Lenovo with 8GB memory running windows 7 x64 with NVidia quadro 880 Everything was working great until one day I would be playing a game and the CPU would max out for a few ...
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3answers
2k views

AcroRd32.exe Maxes Out Core

My CPU usage hit 100%. Process Explorer shows two instances of AcroRd32.exe. Each one is maxing out 1 core. But, there is no Adobe/Acrobat Reader window showing. I had closed the windows earlier. ...
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1answer
574 views

Will a CPU upgrade speed up my web browsing? How to tell?

My CPU model is 2 and a half years old now, released Intel Q4'2010. How can I determine if getting a new CPU will improve how fast I surf the Internet, versus getting a better ISP subscription?
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1answer
974 views

CPU usage doesn't add up

My computer has been acting a little wonky today (it's been running a little slow), so I decided to open up the task manager to look at CPU usage. Why does the top CPU usage not add up to the total ...
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2answers
117 views

CPU usage and speed of program

This is for my server. The scenario goes as follows: Computer A has a faster processor than computer B. They both execute the same program, but Computer A's CPU usage only goes up to 30% while ...
9
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1answer
14k views

How does windows “limit” the CPU (Power Options / Battery saving)

Can anyone explain how Windows effectively limits the CPU? Last time I tried some tricks to let my laptop not overheat, so I tried limiting the CPU to 70%. As for my suprise it stopped my laptop ...
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1answer
727 views

Task/Services has high CPU, but how to find out what it is doing?

nearly daily some service is starting a task and never finishs. This task uses an entiry cpu core, which results in high fan activity. Using ProcessExplorer I found out that it might be a service ...
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0answers
232 views

CPU usage according to lxde applet and task manager is different than top

The CPU usage in top (htop) appears normal but the task manager and lxde CPU applet don't. Here is a screenshot: This is Lubuntu 12.04 Is this a bug?
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0answers
201 views

Decompiled DSDT table, looking for fan values, can't locate. table inside

I have the suspicion that my laptop doesn't set it's fan speed to 100% even when the CPU is hot. This is because I can barely hear the fan when the CPU is > 95 degrees or so. So i'm trying to check ...
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1answer
135 views

Max CPU on everything

I just reinstalled windows 7 ultimate 32 bit on my desktop PC, and it seems like every program I try to run maxes one of my CPUs! its ridiculous! Every time I load a web page in any browser it maxes a ...
1
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1answer
2k views

Opera - How to make it run faster?

I'm using Opera version 12.13 under Windows XP home. It needs ~50% of my CPU and it takes a few seconds if open or close a tab. How can I make it run faster and if possible with less CPU usage? I ...
0
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2answers
294 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
638 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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4answers
13k 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
5k 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 ...
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2answers
5k 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
2k 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
321 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
202 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, ...
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1answer
406 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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2answers
35k 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
2k 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
681 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 ...
4
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0answers
613 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
8k views

How I can force Firefox to use all of CPU capacity?

Some programs like Firefox only use up to maximum 25% of all CPU (only 1 thread). However some programs like WinRAR, use up to 100% of all CPU. How can I force Firefox to use all capacity of CPU ...
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1answer
1k 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
3k 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
357 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
204 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 ...
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2answers
3k 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
327 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
14k 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
7k 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
341 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
1k 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
546 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 ...
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1answer
250 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
96 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
331 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
12k 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 ...