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

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3answers
2k views

How can a single threaded application like Excel 2003 take more than 50% of a hyper-threaded or dual-core CPU in task manager?

I'm waiting for Excel to finish a recalculation and I notice that the CPU usage as reported by Task Manager occasionally spikes to 51% or 52% on a Pentium 4 with hyper-threading. How is a ...
0
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4answers
723 views

CPU fan making noise

CPU fan is making noise. I figured out some reasons: Cable coming out of fan is vibrating. And maybe also CPU fan is loose causing vibration. Suggest options. I cleaned the fan. But found that ...
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0answers
351 views

Do cpuidle governors and cpufreq governors work in mutual exclusion?

My understanding is that when a CPU is in the C0 state, the cpufreq governor decides what P-state the CPU should reside in. When a CPU goes idle, it falls from the C0 state to a deeper C-state. The ...
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2answers
2k views

How to cope with runaway Flash plugin in Google Chrome browser?

I'm using Google Chrome for Linux, version 5.0.307.11 (Official Build 39572) beta with the Linux Flash plugin version 10.0 r32. Quite often, the Flash plugin goes wild and pegs the CPU with about ...
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2answers
127 views

CPU on ubuntu goes crazy

I am running ubuntu 9.10. At the sudden the CPU goes crazy and when I do top, it is used by a command called 'dd' and it is run by USER 'root'. It keeps going to for > 15 minutes. Can you please ...
0
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1answer
379 views

XP 100% CPU on Login, by random processes [duplicate]

Possible Duplicate: XP 100% CPU on Login, by random processes I have a serious issue on my Windexs XP machine. When I start it up it takes ages to login, then when I bring up task manager ...
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4answers
674 views

XP 100% CPU on Login, by random processes

I have a serious issue on my Windexs XP machine. When I start it up it takes ages to login, then when I bring up task manager I find that its running at 100% CPU However, the process taking the CU ...
5
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4answers
18k views

SvcHost is taking 100% of CPU. It appears to be either DcomLaunch or TermService - virus?

So my SvcHost is all of a sudden taking 100% of my CPU, and I'd like to figure out which service is responsible for this. Is there any way to differentiate the load being generated by the multiple ...
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1answer
2k views

How to set alert when cpu usage reaches 100% Windows XP [closed]

Is there a way to set an alert, email or sms, when a certain windows xp machine's cpu reaches 100%?
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2answers
20k views

What is a CPU tick?

Question: How is a CPU tick calculated and what does it represent? Does a single tick equate to 10 miliseconds thus if some thread reported not called for (5 * 10 ticks = 500 ticks) does this mean ...
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votes
4answers
10k views

spoolsv.exe consumes all CPU and RAM resources

Consider a Windows 7 x64 installation with 2 printers installed. The system has 8GB installed RAM. One printer is a Brother laser MFC-8220 Printer via TCP/IP, and the other is a CutePDF printer. ...
5
votes
4answers
3k views

CPU makes an electric leak like sound

For a while my computer have been making a electric leak like sound whenever the CPU usage gets high. However, lately it started to make it more often. For example with anti-virus searches and malware ...
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5answers
2k views

Excel performance improvement

I have an 8 CPU 3GHz Windows machine that is estimated to finish a calculation using Excel in 16 days based on a sample data test. This performance is not acceptable(!). The calculation does not use ...
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10answers
93k views

How do I troubleshoot high 'svchost.exe' usage in Windows 7?

I'm having a problem with Windows 7 64-bit. I thought it was slow and all, but then I saw that the CPU usage was always around 80% and started searching for a solution. There are two svchost.exe's ...
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votes
6answers
7k views

Finder Using Nearly 100% CPU

I'm having a problem where the Finder uses WAY too much CPU time. It's using up to 100% of one of my cores. I'm running 10.6.2 on a MacBook Pro w/ 6GB of RAM, plenty of fast (SSD) disk space. I also ...
1
vote
1answer
408 views

Why is “% System” in Activity Monitor is so high (OS X)

Something I've done recently has messed up my cpu usage in OS X (Snow Leopard). Looking at Activity Monitor, I see normal programs and normal cpu usage (15-20%) for all user processes. But the "% ...
4
votes
5answers
9k views

Reduce Mac OS X's Flash CPU usage

I have been experiencing high CPU usage (138%) on my MacBook, while looking at flash videos on the internet with the Firefox browser. Mostly this usage makes itself noticeable by the loud noise of the ...
4
votes
3answers
2k views

Mysterious cpu usage

A few times a day my CPU will jump to 99% usage, and it will stay there until I force a shutdown (via unplugging it). Below is a snap of the task manager during this time. I am certain a virus is not ...
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2answers
3k views

svchost consuming more than 50% CPU all the time in windows 7

I'm using windows 7 ultimate. svchost containing DCOM Server Process Launcher Plug and Play Power services is consuming more than 50% of CPU for most of the time. I found this blog post: ...
9
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3answers
2k views

When steam is downloading it uses all my cpu

My friends say it's just me, but whenever Steam updates or downloads - which can take hours - it uses 99% of the CPU, makes everything else slow, and is itself glacial to respond at all. Does anyone ...
7
votes
6answers
38k views

What is the relationship between CPU usage and RAM?

I have seen many times that my CPU usage is 100% and my RAM is only occupied for about 50%. What is the relationship between these two? How does one's performance affects the other?
0
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1answer
235 views

CPU Usage in Drive Benchmark

I have a desktop with an e8500, XP, and an Intel SSD. I have a laptop with a T9600P, Windows 7, and a Corsair SSD. Each has 4gb memory. When I run HD Tune benchmark on them, I get a speed of about 225 ...
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4answers
4k views

Monitoring CPU Usage Over the Course of a Day?

Are there any apps I an install on client machines that will generate a report for me what app used what % of the CPU. We have some machines that are running, at times, VERY slowly. The machine will ...
2
votes
4answers
684 views

How do I get more detail on the CPU usage in Windows Vista?

My computer shows 30-40% CPU usage and constantly 900Mb RAM usage (I assume just running Vista). The CPU usage is going down when my computer doesn't even have anything open or running. How can I get ...
0
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1answer
1k views

helpsvc.exe get my 100% CPU usage

I encounter a problem these day when I turn on my pc or wake it up from stand by I see my cpu usage is on 100%, when I monitor my processor by procexp.exe , it's shows me that helpsvc.exe get my 100% ...
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3answers
1k views

How can computer clouds charge me for CPU usage?

I’m considering moving my blog to either MS Azure or Google App Engine, using either an ASP.NET or Python blogging engine, but I can’t understand how they will charge me for CPU usage. The bandwidth ...
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votes
5answers
4k views

How to tell which process is hogging my CPU when they don't add up to 100%?

Ubuntu's System Monitor applet shows 100% CPU usage continuously. If I click it, the resources tab shows it at 100% continuously, too. If I go to processes, though, to find out which process is the ...
2
votes
2answers
676 views

Power to USB lost when computer is under load

Any time my computer uses 50+% of its CPU for more than a few minutes, the power to my USB ports seems to be shut off, and then the CPU spikes to 100% and stays there. (syncing my iPhone is what was ...
3
votes
6answers
3k views

Why is the 'System' process at 100%?

On Windows 7, the System process is taking up 100% CPU (well 50% on a dual-core) for a rather long time. Its CPU usage doesn’t seem to drop at all. How can I diagnose this problem? What could be the ...
3
votes
5answers
2k views

What is Firefox doing?

If one watches Firefox's CPU consumption, one can see it consuming large amounts of CPU even while it's not being interacted with. On lower-spec computers, this can cause performance problems that ...
4
votes
3answers
611 views

CPU mysteriously being used by nothing

There have been some time since I've noticed it, but could just ask for help now. I have a Core2Duo E7400 (2.8GHz), with 2GB of DDR2. My gnome-system-monitor applet ALWAYS shows half of the CPU meter ...
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3answers
4k views

Windows 7 Firewall services consuming all CPU

I have Windows 7, 64-bit, installed on two computers: my Dell Dimension 5150, and my Dell Latitude D830. Today's gripe is this: Sometimes I look at my CPU usage thingie and I see something like ...
2
votes
5answers
797 views

What might cause a severe slowdown on a PC without showing high CPU usage?

A friend's Windows XP laptop has become extremely unresponsive over the last few days, taking over 30 seconds to open My Computer for example and a over a minute to open a locally stored Word ...
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vote
2answers
554 views

CPU utilization from 60 to 100% when I launch Task Manager in Windows XP

Whenever I launch Task Manager, it shows the CPU utilization is 60% or sometimes even 100%. However, almost instantaneously, it drops down to 10% or less than 10%. Is this normal behavior in Windows ...
95
votes
3answers
73k views

Why does MDS run wild in Mac OS X 10.6?

I've been having trouble with the MDS process running wild on my MacBook Pro 13". I've read on other support forums indicating that improperly formatted external drives can be an issue, but I have no ...
1
vote
1answer
510 views

CPUs jammed by SearchIndexer?

I was minding my own business scripting along, hunting down some docs on a library i used for a piece of code that i dusted off. I searched for a simple thing ('ex', with quotes) in the documents ...
0
votes
1answer
716 views

Looking for *numeric* cpu monitor for (Vista 64) system tray

I'm looking for a system-tray based cpu monitor for Vista (and Vista 64) which displays as numeric. SpeedswitchXP doesn't work in Vista 64. Any ideas?
3
votes
7answers
6k views

How to fix the “Firefox using max CPU” problem?

Every now and then while browsing, my Firefox CPU usage shoots up to the max possible (that's 50% for my dual processor laptop). It remains at max usage even when I close all the tabs. In fact, the ...
38
votes
3answers
24k views

What does load average mean in unix/linux?

If I run uptime, I get something like this: 10:50:30 up 366 days, 23:27, 1 user, load average: 1.27, 2.06, 1.54 What do those numbers on the end mean? The man page tells me it's "the load ...
3
votes
1answer
788 views

iTunes CPU usage

iTunes on Mac OS X 10.5 is consistently using 10-11% of the cpu when playing one song. I understand that iTunes is a resource hog and my iTunes library is pretty big but could any other programs be ...
9
votes
3answers
14k views

Task Manager shows 100% CPU utilization, but nothing in process list does

I'm using WinXP, and I notice that in the Task Manager, on the Performance tab my CPU usage is 100%. But When I go to the Processes tab, and sort by CPU System Idle Process is taking up 90%. I've ...
6
votes
6answers
30k views

Is a CPU fan speed of 3590 RPMs normal?

Ant pointed me to SpeedFan in this stackoverflow question. I downloaded SpeedFan and it reports that my CPU temperature peaks at about 73C which seems to be normal according to this chart (although ...
0
votes
5answers
5k views

Why does my CPU fan race when running videos or virtual machines?

I have: Windows Vista Home 32-Bit SP1 Intel Celeron CPU 3.06 GHz 2 GB RAM I installed the operating system about a year ago, has been working fine. However about 3 months ago, the CPU fan has ...
0
votes
2answers
949 views

Dreamweaver CS3 hogs CPU

Whenever Adobe Dreamweaver CS3 is open, it uses 100% of an entire core of my CPU. I have Windows Vista x86. A few google searches have offered me the advice of excluding Dreamweaver from DEP, ...
9
votes
2answers
2k views

Limit CPU usage for flash in Firefox?

How can we limit the CPU usage of Flash plugins in Firefox ? I do not want to disable Flash, but I don't need to Flash objects to run at full speed either, in order to save battery power.
6
votes
5answers
11k views

How can I investigate 99% CPU usage by w3wp.exe?

w3wp.exe is showing 99% CPU usage. What are the best ways to investigate the cause of this high CPU usage?