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

learn more… | top users | synonyms

1
vote
0answers
47 views

Windows 8.1 - System process uses 1 core up to ~90% constantly

Asus N550JV comes with Windows 8 installed. I prefer 8.1 so I installed Windows 8.1 on my machine. Downloaded all the specified drivers on Asus Support Page, not to mention my whole system is up to ...
0
votes
3answers
34 views

How to give 100 percent CPU usage to a process

(windows 8.1 machine with i3) Is it possible to put a process using 100% of my CPU? I have a rather "slow poke" CPU and after a while working with an application, it gets really slow. I'm wondering ...
0
votes
0answers
34 views

Multiple issues : CPU at 100%, left click behaving as right, windows activate alarm

I am having quite a number of problems since a few days, and I am wondering if someone can throw some light on this. I have tried to reset my computer to factory settings, but it didn’t help. About a ...
1
vote
0answers
20 views

minimum allowable CPU speed

How can I determine the minimum allowable speed for my CPU to run the computer. Having the option to reduce the CPU to 0 is not logic nor allowable in Win8. Even if you set the Max. processor ...
0
votes
0answers
13 views

efreetd keeps hogging cpu in enlightenment 17 (version 0.17.3-3)

SOLUTION AT THE BOTTOM Googling around led me to someone remarking that it posts a lot of 'sleep' messages in ~/.xsession-errors, which maybe the culprit. But I have no idea how to stop the ...
1
vote
1answer
100 views

Postfix is Sending Spam [closed]

I have an Ubuntu 12.04 server, hosted on AWS, that powers a dozen WordPress installations using Nginx and php5-fpm. The problem just began one day. My server was down. Panic! Whenever I turned it on ...
0
votes
0answers
14 views

CPU utilization taking frequency scaling into account

The CPU utilization output in tools like top, obviously, simply measure the amount of time a process has spent running on the CPU, divided by the elapsed real time. Taking this as a measure of how ...
0
votes
1answer
17 views

Load average and processor count

If I have a CPU with 8 cores, is it okay to have a consistent average load of 2.5? Or should it always remain below 1, irrespective of the number of processors / cores?
0
votes
1answer
15 views

Can't get cpu % usage from stats

I am using a tool called collectd, under linux, which gives me different cpu stats. I get: cpu user mode cpu system mode cpu nice cpu idle cpu wait cpu interrupt cpu softirq cpu steal now, ...
0
votes
2answers
62 views

Sometimes when I check my CPU usage, my 2nd CPU (#1) is stuck going around 90% while the others are around 20% max

i have checked the 'affinity' of all my processes and all of them are set to all CPUs, yet I check my CPU usage and my 2nd CPU (it's called #1 because my first CPU is #0) is jumping around 90% and ...
1
vote
1answer
60 views

Why is there a lot of CPU usage on mostly IO operation?

I have a process writing binary files into ext3 filesystem. I would assume that this should be a pretty easy process on CPU, but I see 45% system CPU utilization. It's a 40-cores 80-threads server, ...
1
vote
1answer
98 views

Why does Touchegg's CPU usage increase over time?

I'm using Touchégg on Arch Linux and it functions splendidly. However, I'm noticing that as I use it, it gradually takes more and more CPU time. There are a few things to note: If I kill the ...
1
vote
0answers
33 views

How is CPU time measured on Windows?

I am currently creating a program which identifies processes which are hung/out-of-control, and using an entire CPU core. The program then terminates them, so the CPU usage can be kept under control. ...
2
votes
1answer
68 views

Force a program to consume at most x% of CPU time [duplicate]

Is there a way to force a specific program to use less than 100% processor time even when the CPU would be idle otherwise? Using process priority, we can adjust how much resources a given program ...
1
vote
1answer
64 views

CPU time used last second

I'm programming in Bash and I'm trying to find out how much CPU time that were used in the last second. I also need to separate the systime (Kernel mode) and the usertime (User mode). I've looked ...
0
votes
0answers
58 views

Is a Dell XPS 15 L502x with three 24" monitors (1920 x 1200) possible?

I'm at a crossroads and need some PC advice. I'm a web developer so I'll have a few local web and DB servers running, maybe Photoshop and or Illustrator, any number of MS Office programs running, SQL ...
-1
votes
1answer
46 views

OS X only uses 99% of CPU while Windows uses 100%

On OS X Mavericks I noticed that while rendering or playing games, the maximum CPU usage is 99%. Trying the same render test on Windows on the same machine gets me 100% CPU usage. Why can't Mavericks ...
0
votes
0answers
75 views

CPU usage goes high in seconds

As a client, cPanel shows CPU usage on 0% 25% 50% 75% or 100% every time I login. Recently it had 100/100 CPU usage with full use of physical memory, Entry Processes and high usage of virtual memory! ...
1
vote
0answers
45 views

30% CPU usage when charger unplugged. When plugged in, cpu usage drops to 2%

I have checked by external debugger and it seems that batteryservice:update start runs 10 times per second. Other battery processes are running very often too, only with charger unplugged. It's brand ...
1
vote
1answer
29 views

OSX resource allocation?

I am in the process of converting all .avi files to .mp4 (for compatibility with my PS3 and iPad). I noticed today that both the applications I've used so far (MPEG Streamclip & Handbrake) only ...
0
votes
2answers
84 views

Again about Hyper Threading

I have Asus 1025c with dual-core atom with hyper-threading enabled. When I play games, processor load rate always less than 25% (1 core). Is that means, that game (running single thread) occupies only ...
1
vote
0answers
65 views

Why Skype consumes huge percentage of CPU?

I have searched this a lot using Google. I have found numerous people having the same problem as me, but I could not find any good answer anywhere. That's the reason I am asking it here as well. ...
2
votes
1answer
47 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
votes
2answers
25 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
votes
1answer
38 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
votes
1answer
144 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?
0
votes
1answer
180 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
votes
1answer
78 views

Mystery processes maxing CPU Usage

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
votes
1answer
666 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 ...
0
votes
2answers
621 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
0
votes
0answers
1k 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
votes
1answer
35 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
337 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
votes
1answer
34 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
vote
1answer
70 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 ...
2
votes
2answers
473 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
76 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
vote
1answer
129 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?
1
vote
1answer
145 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
45 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
987 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
140 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
votes
0answers
69 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 ...
1
vote
2answers
487 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
votes
0answers
50 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 ...
1
vote
0answers
89 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
votes
1answer
76 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
votes
2answers
129 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
votes
1answer
114 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 ...
2
votes
0answers
2k 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 ...