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

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13 views

Algorithms implemented in Java to measure multi-core CPU performance [closed]

I've been using Linpack and SciMark2.0 algorithms to evaluate CPU performance. I found those here: http://www.netlib.org/benchmark/linpackjava/ and here: http://math.nist.gov/scimark2/ They work ...
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2answers
75 views

SVCHOST.EXE Using 25% Of CPU Load When Windows Update Is Running

Usually Windows Update does not take that much time to check what updates are available but this time I noticed that it took over 1 hour for it to check and return with information what updates it ...
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2answers
120 views

Windows update KB2952664 (Compattelrunner.exe) cannot be uninstalled from Windows 7

Update KB2952664: Compatibility update for upgrading Windows 7 This update performs diagnostics on the Windows systems that participate in the Windows Customer Experience Improvement ...
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1answer
49 views

Allow browser to use more cores

I wrote an algorithm with JavaScript. When I execute it in Google Chrome, it takes about 30min, which is quite long. When I open the task manager during the computation, I can see that Chrome takes ...
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0answers
23 views

How to determine (in a given time span in the PAST) which were the top CPU-using processes?

Short question: How do I determine which were the top processes hogging the CPU (Windows 7 Home Premium quad-core laptop) in a period of time which started 15 minutes ago and ended 01 second ago ? ...
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1answer
41 views

Video player high CPU usage

I need to play a video file with ffplay in fullscreen mode. The original file has 720x576 resolution, my display is at 1920x1080. When I launch ffplay as ffplay "filename.avi" and upscale it by ...
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1answer
93 views

Windows 10 does not see second CPU

I have Dell Precision T5400 workstation with two Intel Xeon x5450 (quad core) processors, and I installed Windows 10 Pro (updated from 8.1 Pro), and OS see just one processor. Device manager see 8 ...
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31 views

Compiz consuming CPU on Ubuntu 15.10

My CPU seems to run "hot" all the time, and I noticed that it's compiz which is running at 100% all the time, sometimes on single core, sometimes on multiple cores. It may be related to multiple users ...
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1answer
111 views

Windows 10, getting stuck and unbelievable CPU usage

I've just installed windows 10 and immediately experiencing lags and unresponsiveness. System would get stuck for ~10 seconds randomly. I have no utility software running, or even installed. It is a ...
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0answers
82 views

Windows 10 running at 100% CPU usage even in safe mode

I have been trying to solve the issue with 100% CPU usage on Windows 10. I tried the following: Updated GPU and Intel drivers. Scanned the system for viruses with Malwarebytes, ESET Smart Security ...
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1answer
30 views

systemd: cpu usage of services

I'm running systemd 229-3 on an up-to-date Arch Linux installation. Lightdm is launched on startup, and starts my XFCE desktop environment. Furthermore, laptop-mode-tools is installed and run on ...
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2answers
163 views

CPU Constantly at 100% In Task Manager, But Not in Process Explorer

Starting yesterday, I have a very odd problem on my Windows 10 desktop-- my CPU is constantly running at 100% (according to Task Manager), and it isn't throttling down. Because of this, it's ...
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1answer
61 views

Having trouble with windows 10 task scheduler

I have recently upgraded my windows 8.1 to 10, And now each time I leave my laptop on its own after a few minutes the CPU and Disk usage both go really up due to scheduled tasks. I tried disabling ...
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0answers
55 views

Ubuntu 14.04 - CPU load 100 percent

I haven't run/install anything since about a week ago, but yesterday when i logged on my laptop, and feel anything are slowly. So i checked CPU use with htop, everything went down. Some process use ...
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2answers
93 views

CPU throttling / parking under use

Seemingly randomly, CPU cores 2-7 will park and cores 0-1 will throttle to an idle clock despite current heavy usage of a browser, video editor, VM, etc. What is running does not seem to affect the ...
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2answers
49 views

CPU Spiking When Computer Is Locked

Today I installed a new CPU cooler onto my desktop that actively monitors the CPU temps and will adjust the fan speeds as needed. It also alters an LED on the cooler based on the temps of the CPU. I ...
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1answer
178 views

Chrome's high CPU utilization when playing Youtube 1080p@60fps videos (x 3-4 compared to Edge for same codecs) + more dropped frames

When I play full-screen 1080p@60fps Youtube videos in Chrome (with MagicActions extension), my i5-4570T CPU hovers around 35-45%. Playing the same video in Edge takes up only 10% of CPU. Both use the ...
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0answers
134 views

High CPU usage by Service Host: Local System (Win10, 64-bit): ntoskrnl.exe!KeSynchronizeExecution + others

Here are screen-shots from Process Explorer which identifies ntoskrnl.exe!KeSynchronizeExecution as one of the ever-running processes: I don't know what to do with this info and cursory google ...
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1answer
50 views

Windows 8.1 high CPU usage

When I play audio/video files with my system, no matter what the media player is, the cpu usage goes easily high and it's due to something labeled as "System" in task manager, and when I track its ...
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1answer
595 views

How can the CPU speed exceed the max speed?

I was watching my CPU speed in the task manager when I noticed that sometimes the CPU speed exceeds the maximum speed. Actually, sometimes it goes up more than attached. How can this happen?
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0answers
14 views

CPU frequency scaling max frequency

I'm able to cap the frequency of my laptop to 800MHz, but I notice the cpu usage almost doubles. Are there any long term negative effects to not letting the cpu manage it's frequency dynamically? I ...
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0answers
90 views

How to find the cause for high CPU usage of gnome-shell?

I'm on a Linux Fedora 23 and I recently noticed that my gnome-shell process constantly uses 100% of one CPU (reported by htop, no visible applications running). There are some hints out there which ...
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1answer
30 views

How can I monitor the CPU usage of each application

Sometimes I need to understand each application is running and consuming more CPU Resources than others and stop it. is there any Sw to monitor this?
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0answers
27 views

Gaming framerate drop issue, and CPU temp display of 206 C

First and foremost, thank you to anyone who helps me on my journey to diagnose my computer issue. It is MOST appreciated. Before I start, let me give a display of what exactly my computer is running: ...
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0answers
30 views

Linux top (procps) discrepancy in numbering of CPUs for process list vs summary

I am using the top utility on a CentOS 6.7 system (procps version 3.2.8) and am observing inconsistent numbering in its output. My box has an Intel(R) Xeon(R) CPU E5-2690 v2 which has 10 cores with ...
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1answer
121 views

Suspicious CPU activity when computer wakes from sleep; VPN suspected?

Recently I noticed that upon waking from sleep, one or more of my CPU cores were running at full blast. My computer sleeps without fans on, so this is worrisome to say the least. I have experienced ...
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1answer
166 views

Windows 7 high CPU and HDD load

Constant Windows 7 high CPU and HDD load. Process Explorer shows following 2 svchost processes doing this: One of them contains following services: Another contains this services: Any way to ...
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1answer
379 views

Why does “desktop window manager” have very high CPU useage? [closed]

I am suffering a very high CPU utilization on desktop window manager process - up to 90-95 percent. Apart of it, no other process consumes more than 5%. How can I solve it? My main computer ...
0
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1answer
45 views

How to understand CPU 100% overnight on Debian

I've a server with serval VM. Two of those (are the same replica) tonight had a spike in the usage of the CPU. They went both to 100% for 6 hours or so (we have Grpahite and we check the chart every ...
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0answers
33 views

CPU usage command line

I want to get the cpu usage. I tried this command top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}' Could you confirm if this command is correct? The OS is ...
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1answer
44 views

When does CPU Usage starts to impact users or services? [closed]

I work with servers, and now, starting to gravitate more into server performance monitoring. Some application developers that I've met lately claim that Windows/Linux Services and its applications ...
0
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1answer
58 views

What is slowing down my computer during gaming?

I have a Dell Latitude E6410 with Nvidia Quadro NVS 3100M and Windows 10 installed. I've been regulary playing Counter Strike Source for past 1 year without a problem. But for past month or so, ...
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1answer
32 views

Does a multicore cpu running Windows 10 64 bit speed up 32 bit programs?

If Windows 10 uses multiple core cpu efficiently, will a 32 bit program work better because of the multiple core, or does the program have to be specially coded to utilize them?
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4answers
961 views

Cannot get rid of Win 10 'system and compressed memory' high CPU, any suggestion?

first post here, I have read all what I was able to find (and not only here) on the topic but nothing solved my case up to now, I have something like 30 years experience with PC building/servicing ...
0
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1answer
34 views

Why is my computer is very slow and CPU hovers around 95%?

A bunch of different programs are taking up CPU. However, those are programs that's not even active. They're not supposed to take that much CPU. It's as if the CPU got downgraded or something. What ...
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0answers
32 views

Connecting to ProFTPd causes high load in polkitd and accounts-daemon

I installed ProFTPd and it is working fine, but when I connect to it from another machine, both polkitd and accounts-daemon jump to 100% CPU usage. How can I prevent that, or even find out what it ...
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1answer
152 views

ESXi 6.0 U1 + Solaris 11.0 VM = host CPU high (slowly climbing) but VM idle

I have ESXi 6.0 Update 1 (Build 3029758) installed on brand new hardware (Atom C2750, 16GB RAM). VM is Solaris 11.0 with 1 vCPU and 4GB RAM. Solaris was installed from sol-11-1111-text-x86.iso ...
12
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3answers
31k views

What is the cause of a high CPU usage of 'system and compressed memory' in Windows 10?

There is an observation to be made for Windows 10 on my laptop running with 24G memory available, and 2.5G used. There is no 'memory pressure'. Other questions have looked at memory consumption ...
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2answers
2k views

Windows 10 Unistack Service Group hogging CPU to 40% or more

CPU is in high load, consuming battery and with the fan always on. Examining Task Manager, I can see the Unistack Service Group taking 40%-45% of load. Specs of machine: Windows 10 Pro 64 bits on ...
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1answer
243 views

Windows 7 PID consumes 50% CPU almost everyday for hours

I'm trying to determine why these services consume 50% of my CPU for hours at a time each day. I cannot restart the services without error and killing the PID just restarts it in a few minutes and ...
0
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1answer
41 views

Limit CPU/RAM in all process for debian

Whenever i run CPU/RAM intensive tasks, i cant use my computer it freezes until the task is complete. I was looking for a way to limit resources per process for all processes. i.e so none of the ...
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votes
2answers
51 views

Why can't I find a tool that lowers the priority of background processes in Windows? [closed]

Since I have started using Windows 10, I contantly have lots of applications open on different desktops. I for example, often have a dozen WinSCP instances open. Each of these take up a few percent of ...
3
votes
1answer
232 views

Why / How is Adobe Premier Pro CC using over 100% of my CPU

So I've started a render. My MacBook Pro starts smelling like burnt feet. I open activity monitor and see the following: So currently with those two processes alone I'm running over 300% of my CPUs ...
0
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0answers
43 views

Running peer block lowers the CPU usage - Am I being hacked?

Why is it when I start peer block my CPU usage goes down 20%? I've been using peer block not because IO'm file sharing but because I just want to better secure my computer. I use its default p2p ...
-1
votes
1answer
283 views

Linux mint 17.2 : How can i reduce cpu usage?

I've been using linux mint for month with no problems. Today, when I opened my laptop I noticed a huge CPU usage, although no program was running. My laptop is a Lenovo z500 core i5, 4gb ram. The 4 ...
0
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1answer
68 views

Laptop CPU and RAM usage

For the past two days my laptop has been using way too much RAM and CPU even when I am not using my computer and/or have 1 window open. Here is a picture of my performance tab: Any idea why I am ...
4
votes
1answer
387 views

noms.exe high CPU usage (what is this process?)

I recently discovered process called noms.exe running and maxing out one CPU core on the machine. I have done all the usual steps trying to collect the information about the process and was surprised ...
0
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1answer
204 views

Explorer.exe memory leak while exhausting one CPU core since 10586.17

Explorer.exe (GUI) is still working and responsive but one thread hangs at ntdll.dll!RtlAcquireSRWLockShared with ntdll.dll!ZwQueryFullAttributesFile being on the top of the stack. Memory is leaking ...
3
votes
1answer
197 views

xdg-open hogging the CPU by forking itself endlessly

Whenever xdg-open encounters a file it does not have a default application associated with it forks itself. This process repeats recursively until killed. While doing this, it of course takes up all ...
2
votes
1answer
250 views

Command Line utility to see list of tasks CPU Usage, Memory, and execute

I want to log, every 10 minutes, list of all the apps in windows that now running, the CPU usage, and memory usage. I have many node.exe tasks, so I want to see the arguments of the task (for ...