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

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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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2answers
1k 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
99 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
8k 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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0answers
215 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
469 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
182 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
949 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
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 ...
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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
459 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 ...
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1answer
860 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
465 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 ...
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1answer
579 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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2answers
883 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 ...
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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. ...
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2answers
4k 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
6k 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
649 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
1k 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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0answers
385 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
811 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
3k 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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2answers
3k 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
4k views

How is CPU temperature related to CPU frequency and CPU usage percentage? [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
4k 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
178 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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1answer
11k 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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0answers
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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1answer
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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1answer
147 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 ...
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0answers
537 views

Virtualized guest vs host CPU usage

I am using qemu with kvm as my hypervisor. I am running a gentoo guest on an ubuntu host. The guest is being given a single processor. When I run a compute intensive job (say empty-loop) I get almost ...
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1answer
514 views

MayaBench (rendering) only using 25% CPU; Other software uses 100%

So here's my frustration. I have a Intel 2600K 3.4Ghz OC @ 4.8Ghz ASRock Z68 Extreme 4 Mobo 16GB 1600mhz DDR3 memory. When i run MayaBench for rendering, I get this wierd bumpy shit. while ...
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3answers
543 views

How can I ensure that exactly one process is running on a given processor/core?

I would like to do this so I can accurately speed test my processes, and just to be able to have the illusion of control. Maybe I want to reserve one processor for special programs. Maybe I want to ...
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2answers
5k views

Firefox 12 CPU at 99% and making Macbook Pro hot

I am running Firefox 12 on a Macbook Pro, and it keeps going up to 99% CPU usage, I can hear my computer revving up and feel it getting hot. The previous version did this as well. I don't have any ...
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votes
2answers
5k views

linux migration/N high cpu consumption

on my linux appliance based on 3.0.0-14 kernel I got: RPN:/tmp# ps axuf | grep migration root 6 92.9 0.0 0 0 ? S Apr23 2788:33 \_ [migration/0] root 7 99.7 0.0 ...
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2answers
843 views

What is causing sudden freezing during running real-time program?

So I run a high intensive (CPU/GPU) real-time program. During normal execution suddenly everything freezes for 1-4 seconds. I opened "Process Explorer" in the background to help gain insight and maybe ...
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1answer
739 views

CPU Usage 100% With No Explanation

I just recently switched my AV from Avast (subscription was up) and installed the Norton 2012 package provided for free from my ISP (Comcast) about two months ago. I use my HP G62, dual core, 2.1 GHz, ...
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1answer
4k views

CPU Usage at 100% with “Hardware Interrupts”

After turning on my desktop one day, I found that my CPU usage was maxed out at 100%, with most of that going to hardware "Interrupts": I tried to enable/disable all my devices one by one through the ...
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1answer
855 views

Ubuntu not balancing cpu usage among cores, making load go up

I am running 10 processes that each use 20-70% of a core of an i7-920 with 8 cores on Ubuntu 11.04. CPU scaling is turned off. When I look at htop, I see that cores 4 and 8 are almost unused, while ...
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2answers
2k views

linux ' top ' get total of a user's cpu usage > 100%, with IRIX mode off

I used ' top -bn 1 -u myaccount' to monitor the summary of all the cpu usage of my account. But sometimes my log shows that the summary adds up to 160% plus. I'm quite confused, does anybody know ...
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2answers
890 views

What tools exist for monitoring the CPU and memory utilization of Firefox?

Firefox appears to using too much memory and cpu even when it is idle What tools exist for monitoring the CPU and memory utilization of Firefox? I am thinking of an equivalent of Sysinternals ...
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8answers
11k views

Why does the CPU usage reach 100% when laptop is plugged in?

I have an HP Elitebook 8440p with Windows 7 Ultimate, i7 Processor and 8 GB RAM. For the last couple of days, when I plug-in my laptop for charging, the CPU usage shoots up to 100% and remains there ...
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1answer
744 views

apache: cpu usage per virtual host

Is there any tool that can provide statistics about cpu-usage per virtual host? This way I can understand which is the website that causes 100% spikes in CPU usage. Thanks! if this is not possible, ...
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12answers
40k views

How can I produce high CPU load on Windows?

For testing purposes I need to generate high CPU load on a Windows Server 2003. I cannot install any software but have to make do with what Windows provides. What would be the best way to achieve ...