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

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1answer
297 views

Does the choice of CPU affect the energy budget of a commodity server farm? [closed]

How does the choice of CPU affect the energy budget of a commodity server farm? I'm wondering how much it costs per year to power the kinds of commodity servers Facebook, Twitter et al. use. Let's ...
2
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2answers
44 views

Redirecting top when multiple CPU's shown

If you run top, and then press 1, it shows the breakdown of usage on each CPU. How can I redirect this to a file? I know I can do top -n 1 > process.txt but how can I get the 1 option in the ...
0
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1answer
436 views

Audio is distorted after playing game, “System interrupts” at 15% of CPU Usage

It doesn't happen before. Just yesterday, I played a game and I quit it. I was bored and listened to some music and then the audio is so bad that the quality had distortion. Not just the song, but all ...
0
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1answer
319 views

Skype makes my processor thrash at about 25% and my fan stay on

When I start Skype, task manager shows skype.exe constantly using 25% CPU and the fan on my laptop comes on and stays on. My default browser is Chrome. How can I stop this happening?
1
vote
1answer
3k views

Service Host (SVC.exe) using 10-20% of CPU

Recently my fan has been a little louder than it usually is and I wasn't sure why until I looked at the CPU usage which is always around 10-20% during idle. My computer has been running Windows 8.1 ...
0
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1answer
191 views

Mystery processes maxing CPU Usage [duplicate]

I have recently re-installed Windows 7 following a BSOD incident and I have noticed the CPU usage maxing out occasionally when I am not doing very much (not when it has recently started up). When I ...
0
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1answer
4k views

Windows 8.1 Pro - CPU Usage Stays at 100%

About an hour ago, I noticed that my laptop had gotten noticeably slower. My laptop is extremely fast, so this extreme decrease in performance prompted me to look at the task manager. In the task ...
5
votes
2answers
75k views

svchost.exe using lots of memory slowing my PC down [duplicate]

On my Windows 7 32-bit. svchost.exe is using lots of Memory and slowing my PC down big time. I already have auto update turned off and it is on manual mode. How can I fix this problem? Thanks
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1answer
3k views

Windows 8.1 high System process CPU usage due to MmTrimAllSystemPagableMemory, why?

Every once in a while (I can't pin down exactly when, but it seems to be correlated with when the computer is idle for a while), the System process on my Windows 8.1 x64 machine suddenly starts using ...
0
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1answer
57 views

Constant CPU utilization on consumer hardware [duplicate]

A computer in a manufacturing environment is running software that is in a constant communication loop with a PLC. An artifact of the implimentation is ~20-30% CPU utilization 100% of the time (24/7). ...
0
votes
1answer
874 views

Intel 3945ABG DPC spikes (audio stutter, mouse) in Windows 8.1

As reported by many users, Intel WiFi chips such as 3945ABG and the later 4965 may experience CPU spikes due to DPC activity. This is typically experienced as: Audio stuttering. Uninterrupted ...
0
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1answer
118 views

Disabling CStates/TurboMode in Windows

In Linux I know how to boot and have cstates disabled to get full CPU power. How is this done in Windows? Does it vary based on Intel and AMD?
1
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1answer
159 views

How a scheduler is scheduled?

A scheduler being a system program must be scheduled for execution so that it can wake up and schedule other programs. I read about process scheduling and algorithms but couldn't figure out how a ...
4
votes
2answers
4k views

How to increase Python's CPU usage

I use Python to execute some algorithms and no matter which Python I use, and I have tried many versions, the CPU usage goes to 25% max. Why doesn't Python take advantage of the rest of my CPU ...
2
votes
1answer
470 views

How to increase the cpu utilisation of a process in windows 8

I am doing a project for my college using WEKA, I am classifying a very large text file(300MB). But it is a very slow process. I looked in the task manager and I saw that weka uses only 10% of the ...
1
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1answer
2k views

Is disabling the Windows 7 Desktop window manager a bad idea?

I'm thinking about disabling the dwm.exe process. It seems that I can do fine without the fancy feature of [Wind]+[Tab], and am generally needing to cut memory. Does it have unintended side-effect?
3
votes
1answer
875 views

What does CPU usage for a process actually mean

Assume the computer has a single core - what exactly does it mean for process A to be running at 100% CPU capacity vs (lets say) 10% CPU capacity. If the CPU was 2.0 GHz, does that mean in a time ...
0
votes
2answers
93 views

BOINC exclusive applications aren't triggering a suspend

I have BOINC running 24/7 and want to have it temporarily suspend while I am compiling large Visual Studio projects to speed things up. As things currently stand, the compiler and BOINC seem to fight ...
3
votes
1answer
5k views

Root cause for high CPU usage; which measurement to trust more: Windows Task Manager or Process Explorer?

Consider this Windows 8.1 machine (in-place upgrade from Windows 8) with differing reports on its CPU usage. The machine is idle, and has been for 3 days. There are no CPU intensive tasks running ...
2
votes
2answers
971 views

Control Linux CPU load for testing

I wish to carry out some testing on a range of Linux devices to see their power consumption based on current processor load. As such I am looking for a program I can use to force the CPU to use X% ...
2
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0answers
194 views

Idle CPU and CPU Power-saving mode definitions

I have a presentation on CPU's and there's some stuff I want to clarify that's defined in many research papers that I'm not fully sure about. How can the CPU ever be idle? I mean as long as you are ...
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2answers
3k views

How can i fix my low CPU usage?

I have a very expensive pretty new computer, (Asus rampage III Extreme) (Intel i7 980x) and 2 (nvidia gforce 580 SLI). So it is a good computer, but when I play games like Borderlands 2 I get much ...
0
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0answers
79 views

Starting any process and suspending it lowers CPU from ~50% to ~5% in Vista, Why?

While doing a little housekeeping on a Windows Vista installation, I discovered that suspending any winlogon.exe subprocess would lower the CPU usage from the normally observed 50% usage down to ...
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0answers
125 views

Windows unresponsive, CPU utilization uninformative

In many situations my Windows 7 box becomes unresponsive, but the Task Manager shows 0 CPU utilization for all processes. Obviously it is the kernel/Windows itself that is sucking all the cycles and ...
0
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1answer
114 views

How to stress the Windows XP kernel?

We have intermittant problems with writing DVDs where the writing process fails. We suspect that the problem is happening when the DVD driver switches from DMA mode to PIO mode and then in this mode ...
0
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2answers
382 views

Reducing RAM and CPU usage on a specific manually selected process

I'm using a very nice desktop software for Gmail (and other email providers): Mailbird. But it consumes too much RAM and CPU, so I have to close it sometimes. I'd like to know if there is any ...
0
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1answer
526 views

Is using top a robust way of measuring system CPU usage?

I got confused while reading this question on stack overflow. The asker says: "'top' will simply not do, as there is a delay between cpu dumps, it requires 2 dumps and several seconds, which hangs ...
4
votes
1answer
5k views

High CPU usage by dwm.exe when nothing is happening

Setup: Windows 7 Ultimate, running in a VMware box inside Windows 8, VMware Tools installed; VMware Workstation is the only application launched in win8). Aero is on. Starting a few months ago, on ...
1
vote
1answer
571 views

pdf viewer / reader with multi-core support? [closed]

Which pdf reader/viewer supports more than one core to render and search through pdf files? evince does not okular does not Adobe Reader does not Xpdf crashes on all my tested pdf documents ...
3
votes
1answer
775 views

Why is the kernel and the watchdogs consuming all the CPU?

I run a bunch of heavy user space processes on a powerful Xeon machine (32 virtual processors according to /proc/cpuinfo). The CPU load is normally around 30 and the machine feel responsive, but later ...
0
votes
1answer
80 views

VBA CPU usage during debug

Is there a reason why CPU usage will jump when debugging in Word VBA? I noticed that even when I "step into" a project, and nothing is actually being calculated except waiting for me to step to the ...
0
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0answers
2k views

Constant CPU usage from services.exe, restarting a particular service fixes it, why?

I've always noticed steady usage of my CPU from 'services.exe', typically from 1-4%, constantly throughout the day. If I enable the CPU Time column and sort the processes, I can see that over time ...
0
votes
1answer
1k views

Why USB 3.0 ports are causing high CPU usage?

After two weeks of research and a lot of thinking, it looks like my problem (Explorer is very slow after connecting external HDD) is caused by USB 3.0 ports. In short: after working around one hour ...
3
votes
2answers
3k views

High CPU load from System when idle

I run Windows 8 Pro 64bit on a ~3 year old Sony Vaio. Pretty much since I installed Windows 8 I get high CPU load when I leave the system alone for a couple of minutes. The high load will continue ...
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vote
1answer
1k views

windows CPU is at 100%, why is my CPU frequency down?

I'm looking at Resmon on Windows 8 Basic. I have chosed the "high performance" power plan, which I thought would keep my CPU at the highest levels possible. When the machine is (mostly) idle, the ...
0
votes
1answer
923 views

Allocating more CPU usage to MATLAB

I was wondering if there was a way to allocate more CPU usage to MATLAB. Currently, it says that 85% of my CPU is is idle. Is there some way to increase the threads MATLAB uses, or something along ...
1
vote
1answer
495 views

Get cpu temps from terminal using Cygwin?

I am using Cygwin 64 on Windows 8 and would like to use the bash interface to get cpu temperatures (4 cores, as well as gpu temps). Is this possible? I am using the temperature monitor application and ...
0
votes
3answers
1k views

Hard drive dying? One CPU core runs at 50% but System Idle Process at 99%

I think I have a hard drive or video card dying in my HTPC. It's a dual core CPU and one processor is almost always at 100% usage, but processes are all nil, System Idle Process is at 99% It's a ...
1
vote
1answer
192 views

Can I run a Pentium 4 on 100% for an extended amount of time?

I want to use my Pentium 4 desktop for running some heavy simulations. These simulations take from two to eight hours. Is it safe to run the CPU at 100% for such a long time?
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0answers
226 views

Sudden drop in CPU - unclear root cause

Trying to diagnose why my computer suddenly comes to a CPU standstill (somehow related to plugging in the computer to power packs / recharging). One thing that has prevented me from diagnosing the ...
-1
votes
3answers
196 views

CPU usage and its utilization [closed]

When we use _task_manager_ in windows or top in Linux, we could see that the cpu usage is usually not very high. Moreover, developers are also doing their best to let this target come down. Actually, ...
1
vote
1answer
164 views

How to read 'top' results

I am running a software and while it is running, I want to know how much CPU usage or RAM it occupies... along with maybe other things that could be interesting. For that purpose, I need to know ...
3
votes
3answers
9k views

QuickLookSatellite MAC OS, High CPU Use

I have consistently been having a problem with my computer overheating due to the process QuickLookSatellite-general using 100+ CPU use. (Please see images attached.) On googling I found this ...
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vote
1answer
484 views

Monitoring CPU usage of Virtualbox with top

I'm using the top command in Linux to keep a close eye on Virtualbox which is running a VM. The current CPU in the server is a Quad Core Xeon processor 3.3 Ghz and I have only assigned one core to ...
0
votes
1answer
419 views

How to disable CPU from entering IDLE States

This thread may be similar to Any way to disable specific CPU idle (Cx) states? I have USB 2.0 CMOS sensor camera that needs to be controlled VIA labview. However , when it captures images ...
2
votes
1answer
112 views

Can someone explain what causes extra heat in a CPU

I have a hardware question about CPU and chips in general: what is causing the extra heat when CPUs are busy doing computations ? I thought that the CPUs would have a way to throttle themselves when ...
2
votes
1answer
2k views

cpu load measure with hyperthreading on linux

How can I get the true usage of a multicore hyperthreading enabled cpu? For example lets consider a 2 core CPU, expressing 4 virtual cores. A single threaded workload would now show up as 100% in ...
1
vote
1answer
260 views

Why does my CPU go to 800% on a quad core processor?

I have a recent Macbook Pro. My processor is a: 2.4 GHz (i7-3630QM) quad-core Intel Core i7 Ivy Bridge with 6 MB on-chip L3 cache I am running some cpu intensive programs, that each use "100%" of the ...
2
votes
3answers
4k views

Windows 8 Task Manager: how to enable the “CPU Time” column in the Processes tab?

Up until Windows 7, the Processes Tab of the Task Manager would allow you to add the CPU Time column (see for instance Task Manager's possibilities you may not know): to show it, choose theView ...
0
votes
1answer
219 views

Linux Load Average with CPU 1x2GHz

My load average shows 2.0 in 5 and 15 mins. My CPU is 1x2GHz, I know that 1.0 = 100% but what about GHz? Does it affect that?