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

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62
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8answers
12k views

Can a 7 days full 100% CPU load “burn-in” / “stress test” damage a modern notebook?

When I buy new computers, I usually do a "burn-in" with 100% CPU load for, say, seven days, in a well ventilated place. This is to find out if the computer has problems before I invest time into ...
0
votes
1answer
35 views

Amazon Instance: High CPU load despite cpu being mostly idle

I have Ubuntu 12.04 running on an Amazon m1.large instance. For a long time it is showing extremely high CPU load(7-10) at all times. Typically top shows the load average like this top - 13:34:40 ...
0
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0answers
12 views

How does collectl summarize its numbers?

I'm analyzing the processor usage of a system over the course of 24 hours. I have collectl set to record sysT and usrT every five seconds, but for some long-running processes this results in thousands ...
2
votes
1answer
27 views

Weird Behaviour of my PC

I have windows 7 installed in my PC. Suddenly, the CPU Performance has reached above 70% with no task running where as when I run any application(such as Explorer.exe) the CPU usage reaches to 100%. ...
4
votes
1answer
266 views

At what point will two CPU processes interfere with each other?

I'm running multiple processes on my CPU simultaneously, and now I am trying to find out how much CPU power each of them can use until they start disturbing each other: For simplicity's sake let's ...
0
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0answers
16 views

Dual core CPUs stall with Docker on Ubuntu Linux

I have seen performance degradation after half an hour to one hour with machines running Celery (Django/Python), or Storm under Docker containers with Ubuntu base on Dual-core CPUs on AWS. I see ...
0
votes
0answers
20 views

CPU Utilisation Snapshot report

I want to write a script to monitor CPU Utilisation, and upon the utilisation going above a threshold, create a brief text report on the router. I'm trying to get the the bottom of why some of our ...
0
votes
1answer
18 views

Ram and CPU bar like Ubutuntu 10 for Windows

Anyone knows these little graphs wich shows the load of the Ram and any single core. I love these because they are so smart! Gadgets are cool but not very smart because I have to switch to the Desktop ...
2
votes
1answer
139 views

Task Manager shows higher total CPU usage than the sum of all running processes. Hidden process?

In Windows Task Manager and AVG Task Manager (included in TuneUp Utilities), I see that the sum of all the running processes is much lower than the total CPU usage shown in "performance" tab. Does ...
2
votes
1answer
31 views

Loading CPU in Linux for performance testing

I need a exe which I can run in my Linux machine which can load the CPU to a mentioned percentage. For Example if I run the exe with 50 as command line argument then my CPU should be loaded for 50 ...
1
vote
0answers
29 views

How to log screen power off/lock

I want to log screen power off/lock events. A substitute would be to log mouse/keyboard idling (from which display powering off can be inferred. I ask because I frequently find the fan going full ...
0
votes
1answer
32 views

cpu usage 100% without any processes, and returns to normal in high performance mode in hp dv4

I am having a hp pavilion dv4 laptop. recently I replaced my battery with a brand new one. after that my laptop cpu usage shows 100% without any processes running. This continues even after i removed ...
1
vote
1answer
34 views

Low load average with plenty of cpu-intersive processes

I see loadavg at about 1 with at least 3 processes running at full tile. How can that be? top - 11:48:32 up 147 days, 5:38, 8 users, load average: 1.08, 1.11, 1.05 Tasks: 416 total, 4 running, ...
1
vote
0answers
71 views

Process tree CPU history usage, process tree memory usage (aggregated) on Windows 8.1

This question is general for Windows OS, but I would like to see a software for Windows 8.1, since this is what I use. I'm looking for software, that will take a process tree (e.g. Chrome.exe ...
0
votes
1answer
131 views

CPU frequency is very low and system is very slow too in core i5 vaio laptop

Sometimes I notice that system is very slow and when I see task manager, these are information in performance tab: Utilization: 8% Speed: 0.2 Ghz Maxsimum speed: 2.5 GHz Hardware details are: ...
0
votes
1answer
506 views

Centos running very slow in Virtualbox

I am running Centos 7 in Virtualbox 4.3.14. The VM is configured with 2 CPUs 4 GB RAM 3.10.0-123.4.4.el7.x86_64 kernel The host machine is running Windows 7 Pro SP1 64-bit Intel i7-4790 CPU, ...
-1
votes
2answers
32 views

Desktop is restarting when CPU load more than 60%

My desktop is restarting frequently when CPU load is 60% or more for few seconds. i cleaned CPU fan dusts but still it is happening. so what could be the problem?
1
vote
2answers
36 views

The CPU visible in Resource Manager are physical cores or logical processors?

The Resource Manager that pops out from Task Manager in Windows Operating Systems shows CPU consumption on the CPU tab for each of the different CPUs. I get 4 CPUs on my tab. Are they all physical ...
1
vote
0answers
86 views

External monitor take more CPU [closed]

My machine seems to hang when I connect an external monitor. My question is, does it take more CPU or Memory if I connect an External monitor to the laptop through the HDMI port? Hardware Specs HP ...
1
vote
0answers
96 views

Netbeans 8.0 300% cpu usage mac osx

This happens after a while of using netbeans with php web development. Anyone know if this is a common problem or not and if there is a fix. Don't want it to slowly kill the macbook air I just ...
1
vote
0answers
60 views

Vagrant vbox 45-50% CPU usage

I am running a headless Ubuntu server box on my Windows 7 64 bit PC with Vagrant. My PC has 8 GB ram and Intel Dual Core 3.16Ghz E8500 processor and PAE. The problem is that VBox routinely uses btw ...
0
votes
0answers
15 views

MacAfee On Access Scanner won't end Windows 8

My computer is operating quite slow, and after opening the task manager I have determined that Macafee on access scanner is occupying 65% of CPU load (sorry if this is not worded right). My computer ...
0
votes
3answers
151 views

CPU usage 99% constantly

My computer is running windows 8, and suddenly started running slowly. When I open the task manager, it tells me that the CPU is using 99% - sometimes the disk usages jumps up as well. The strange ...
0
votes
1answer
35 views

What can I do to investigate 50% CPU on Interrupts?

My PC suddenly became very slow. In my Process Explorer, I noticed that it consistently spends 50% of CPU in "Interrupts" process. I googled around and found that one possible solution is to go into ...
0
votes
0answers
73 views

avg consumes all cpu when github running

I am running a Windows 8.1 machine, on which I have installed Github for managing my repositories, and AVG antivirus. I noticed there is some kind of conflict between these two, as AVG consumes all ...
1
vote
1answer
62 views

When applications are slow to launch, how quickly is the process registered as running?

I'm looking at a problem with a java webstart kiosk app of ours. I occasinally get a support ticket saying that multiple instances of the app were found running at once on one PC. This causes problems ...
1
vote
1answer
61 views

Software to do specific CPU load test [closed]

For the purpose of testing my own script that reports CPU usage I'm looking for a program to put CPU under a certain workload, for instance: 10%, 20%, etc. up to 100%. Is there a program that can do ...
0
votes
3answers
65 views

Is there a Linux tool to measure simple stats of memory and processor usage for a program at runtime?

I am aware of for example the GNU profiler gprof, but I am thinking of something that can measure it on any program in a more black-box fashion where I do not have access to compiling the program ...
1
vote
1answer
1k views

High System process CPU usage (Queue/Dequeue+TrimAlllSystemPagableMemory)

I have ASUS G75VX laptop with latest Windows 8.1 (not Pro), all updates installed. Task manager says it's the System process that takes my entire single CPU. When this high single CPU saturation ...
1
vote
1answer
220 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
177 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 ...
1
vote
0answers
34 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
71 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
294 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
44 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
36 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
26 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
143 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
70 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
201 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
55 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
345 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 ...
2
votes
1answer
149 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
130 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
92 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
380 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
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0answers
73 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
64 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
160 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
108 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. ...