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

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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
370 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 ...
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211 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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4k 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 ...
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1answer
331 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. ...
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4answers
8k 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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354 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
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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 ...
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1answer
557 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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256 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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97 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 ...
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338 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
13k 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 ...
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2k 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 ...
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1answer
119 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 ...
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1answer
10k 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 ...
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283 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
681 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
226 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
1k 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 ...
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1answer
4k 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 ...
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1answer
2k 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 ...
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1answer
665 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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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 ...
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1answer
1k 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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82 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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519 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
2k 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 ...
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1answer
769 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 ...
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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 ...
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1answer
5k 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. ...
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2answers
5k views

Intel Core i5-2467m - Turbo Boost not activating?

I have a Samsung Series 5 laptop with an Intel Core i5-2467m process @ 1.6Ghz. The processor supports Intel Turbo Boost up to 2.30 Ghz according to the specifications. The i5-2467m is a dual-core ...
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1answer
7k views

explorer.exe hogging CPU, slow folder browsing

My computer is snappy when I log in from a fresh reboot. Within a short while, it becomes almost unusably slow depending on what I want to do. In particular, any Windows-y actions are slow while ...
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1answer
787 views

Performance and Battery Life

Okay, I'm looking for hard evidence to settle an argument. From a developers perspective, the argument of CPU usage and battery life comes into play often. If a CPU is throttled to use 10% of its ...
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1answer
2k views

High CPU usage by virtualbox running windows 2003 in Linux host

I'm running a windows 2003 guest in Linux xiamx-pc 3.2.0-24-generic #39-Ubuntu SMP Mon May 21 16:52:17 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux I notice that virtualbox process constantly takes around ...
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461 views

100 % CPU usage by HP Probook 4520s

I have a HP Probook 4520s with Windows 7 Ultimate, i5 Processor and 2 GB RAM. For the last couple of days, when I turn on my laptop, the CPU usage rises up to 100% and remains there for 10-15 ...
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1answer
1k views

Gimp 2.8 (cpu not used to full capacity)

Since I updated Gimp to 2.8 (and let me start by saying how happy I am with the new gimp) I have notice that Gimp only uses 35% max of my CPU power. I have tried changing settings, assigning only one ...
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3answers
4k views

audiodg.exe is hogging my CPU

Every time I play audio on my computer, it starts lagging badly. After checking with the processes, audiodg.exe is being a greedy b** and hogging my CPU. I've tried ending the process (with regret) ...
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4k views

Throttle CPU Usage consumed by Process

We run a game-server company where we basically have large amounts of customers sharing a single machine, and are just on their own instance of a Java Process (Minecraft) managed by our Web Control ...
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3answers
6k views

How is CPU temperature related to clock frequency and processor utilization? [closed]

While reading Dennis's reply, it makes me think about what determine the CPU temperature. Following is my understanding. The CPU temperature is solely determined by the CPU usage in a unit time. The ...
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3answers
5k views

What's more harmful to a CPU? High load or high temperature? [duplicate]

Possible Duplicate: CPU usage at 100% for several hours Is it ok to have 100% CPU usage constantly I wonder which case is more harmful: high percentage of usage (>90%) vs high temperature ...
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1answer
192 views

Can't diagnose why all of a sudden my computer is incredibly slow even though the cpu%, or mem usage doesn't change

I have had 3 operating systems(Ubuntu, Win7, Win8) on my computer and I have reformatted the drive for every new install. Sometimes all of a sudden my computer is really slow(I can barely minimize a ...
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18k views

What is the impact of running the CPU at 100% for long periods at a time? [duplicate]

Possible Duplicate: Is it ok to have 100% CPU usage constantly I recently upgraded computers and with this upgrade I decided to try Seti@Home to run in the background. I was watching the ...
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1k views

Windows 8 Consumer Preview - Full Core CPU Utilization by system process [closed]

I have a Lenovo X220 laptop on which I've installed Windows 8 Consumer Preview. Sometimes though it'll get stuck using 100% of a CPU core though in the SYSTEM process, and there's nothing I can do to ...
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98 views

Computer Lockup

I have a small computer that I am running a video application on (video conferencing-style). At inconsistent times, it will 'lock up' - video will freeze, if I am telneting into it from another ...
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180 views

How can I be alerted when a process goes idle (that is, its CPU usage reaches zero for a sustained period on Windows 7?

How can I be alerted when a process goes idle (that is, its CPU usage reaches zero for a sustained period on Windows 7? Essentially, I have a long running batch process that is pegging one of the ...