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

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“System” process high cpu usage

I've been noticing the cpu usage go up, back down for a couple minutes, and then go up again, and vice-versa... Not constant but it happened several times. (almost always up to 23% cpu constant when ...
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1answer
51 views

Why is the CPU frequency always very high on my system?

I have a Windows 7 Pro x64 system used as a home server. Hardware: Core i5, 4670K (3.4 GHz) on an ASRock Z87E-ITX with the latest UEFI firmware. I've discovered today that the CPU frequency is too ...
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19 views

Macbook Pro very slow despite normal memory and CPU usage

My MBP (OS X Mavericks) with 4G RAM has been slow ever since I bought it last year, but now it's getting ridiculous with the loading symbol showing up each time I open a new tab in Chrome or even ...
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1answer
37 views

Windows Processes Utilizing Too Much of the CPU

I have a 4yr old Dell Vostro 1540 laptop with an i3 M380 and 4GB RAM. I only perform light tasks e.g. web browsing, document reading & editing, light Photoshop...,thus I don't need a newer laptop. ...
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1answer
16 views

mpstat user % is not accurate?

mpstat 1 11:01:57 AM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle 11:01:58 AM all 36.03 61.95 2.03 0.00 0.00 0.00 0.00 0.00 0.00 11:01:59 AM ...
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1answer
44 views

Google chrome opening to black screen Windows 8.1

Using google chrome version 41, downloaded it yesterday. Now when I click the icon in the task bar it opens to a black screen. Moving the cursor to the top I get a line that shows a red X and allows ...
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3answers
61 views

Why does reducing CPU frequency improve battery life?

Shouldn't we have roughly the same battery life regardless of the frequency since the higher the frequency is, the faster tasks will complete so in the end the CPU, despite running at a higher ...
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38 views

Does running CPU intensive tasks wear down my computer?

I do a lot of statistical analysis in R (which uses a lot of CPU and RAM). Whenever I run my analysis, my laptop's fan runs at top speed. Monitoring tool shows that 1 of my cores runs at 100%, the ...
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64 views

Very high CPU usage on Linux server

I have the following server: Ubuntu 14 LTS 64 bit Linode Hosting fail2ban enabled firewall enabled SSH root login diabled and only key access to server. Problem: When I run htop, it shows high ...
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7 views

how do i make pppoe use less cpu ?

The new ISP i switched to uses pppoe. So on my old linux (centos 6) router i decited to install a pppoe client and configure as necessary. I say old because it's a pentium III 850 mhz with 128 MB ram ...
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31 views

Init process consuming more than 200 percent cpu

The init process is consuming more than 200 percent of the CPU time on my vServer, which is running Debian 7. Also, my SSH connection becomes very unresponsive after a while. USER PID %CPU %MEM ...
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7 views

Analysing processes for automatic incorrect resources usage detection

I am currently looking for algorithms, programs or ideas to implement first a script (and if it works well eventually a daemon) to analyze the normal operation and resources usage of process on a ...
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60 views

High CPU usage when using AMD GPU instead of Intel HD Graphics

I have a strange problem with my CPU (Core i5-4690k), when I'm using my AMD GPU (HD-7870 XFX). Even in games with pretty low system requirements (Counterstrike Global Offensive on the lowest possible ...
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13 views

Virtual Domain Cpu Time limit

I'm running Munin on Ubuntu 14.04 to monitor my virtual machines (running KVM, libvirt). I often get a notification that CPU usage on my base system is 'critical': mydomain :: Virtual Domain Cpu Time ...
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36 views

How to measure CPU cores usage for a single process?

Is there a way to see which and how many cores are used by single process on Windows server 2008 R2? I have tried Windows task manager and Process explorer but without any success.
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1answer
20 views

How much time does top command consider while finding CPU usage percentage? [duplicate]

Top gives me an output like: %Cpu(s): 4.7 us, 1.3 sy, 0.0 ni, 93.9 id, 0.1 wa, 0.0 hi, 0.0 si, 0.0 st if my CPU has spent 4.7% of its time on user processes, how much of time history has it ...
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1answer
106 views

99% CPU on Win8.1, Can't find offending process

For the last several weeks my laptop is running at 99% CPU, and have been unable to find the offending process. Task manager shows 99%, with no one process using all the CPU, it cycles between ...
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1answer
58 views

How to make sure windows 8 uses all computing power for 1 process?

If I render an image in windows 8 commandline with blender/cycles my machine sometimes has a low cpu usage. The render task starts with 100% cpu usage, fall down after 2-4 hours to 25%, stays there ...
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9answers
19k views

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

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 ...
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1answer
46 views

Amazon Instance: High CPU load despite cpu being mostly idle [closed]

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 ...
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0answers
15 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 ...
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1answer
31 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%. ...
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1answer
275 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 ...
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40 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 ...
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22 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 ...
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1answer
27 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
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1answer
569 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
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1answer
46 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 ...
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31 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 ...
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1answer
47 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 ...
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1answer
52 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, ...
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92 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 ...
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1answer
192 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: ...
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1answer
779 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, ...
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2answers
34 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?
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2answers
47 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 ...
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0answers
143 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 ...
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0answers
120 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 ...
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86 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 ...
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0answers
19 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 ...
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3answers
314 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 ...
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1answer
44 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 ...
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80 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 ...
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1answer
71 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 ...
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1answer
65 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 ...
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3answers
70 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 ...
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1answer
2k 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 ...
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1answer
274 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 ...
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3answers
286 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 ...
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35 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 ...