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Questions tagged [cpu-usage]

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

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Higher CPU usage when more programs using the CPU

I'm not entirely sure how to phrase the question, but it's not just that the other programs are taking up cpu usage. This is what my cpu usage looks like, and I thought "prime95 uses around 50% of the ...
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Windows: how can I pause a program execution and restart a few reboots later?

According to this SU question I can use Windows Task Manager to pause a process execution. How can I pause a process, save its state to disk, and restart it a few days later? Possibly I'll have ...
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93 views

“System Interrupts” process using high CPU

I installed Windows 10 in UEFI mode and have experienced high CPU usage due to a process called "System Interrupts". It takes up 18-30% of my CPU all the time. I've tried installing it on my SSD, on ...
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39 views

Why firefox behaves so weirdly/annoying?

Occasionally FF starts very heavy activities, performing huge amounts of I/O (On my HDD) and considerable CPU usage for a long time (More than 10 minutes is really normal for it) that there is no ...
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30 views

Chrome's processes are now in the Apps section instead of the BG process section of task manager? Made my laptop lag a lot

I have been playing using this PC for a long time, and when I play this game (Warframe), I always have my browser (which always has 30+ tabs open, for work stuff) and a torrent client app. Everything ...
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1answer
49 views

Does RAM frequency & or Latency affect Internet browsing speed or page loading

I currently have 3000 mhz, cl 15. RAM. (8600k so no CPU bottleneck etc) But i was wondering if someone with more knowledge would be able to tell me if i bought 3200 mhz CL 14, RAM would it affect ...
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63 views

System interrupts causing high CPU usage

I purchased a Lenovo ThinkPad Helix 2 2-in-1 laptop/tablet second-hand around a month ago, it came with Windows 10 Pro and was working OK for a few weeks but recently I have had a problem with ...
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22 views

Resource Monitor and Task Manager Conflicting CPU Usage

For the past few weeks task manager has not been showing correct per process CPU usage. Resource monitor seems to show correct values. Task Managers detail tab shows current CPU as well. For this ...
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17 views

New hard drive makes core 1 to stick at 100%

So, I just bought a Seagate Barracuda 1TB 2.5" 5400 RPM to my laptop, and I installed the HDD in the CD Drive slot using an adapter. The disk works well, but one of the cores of my CPU sticks to 100% ...
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1answer
20 views

Windows 10 - log all process exits _with CPU time used_

I want to make a log of all processes run under the my login that lists all processes run and the total CPU used by that process. Yes, I know about Audit Process Tracking, but the terminate event ...
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2answers
89 views

Is it possible to merge CPU cores?

Back in the past there was something called hyperthreading where a single CPU core acted like two cores. But is it possible to merge two CPU cores to an single one to improve performance on programs ...
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1answer
36 views

Can windows version affect a software's RAM and CPU usage?

I downloaded a software that uses simple D3D drawings overlayed on my computer screen. I noticed that the software was using an unreasonable amount of my RAM (about 8GB of RAM) and CPU (40% of my CPU)....
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1answer
298 views

Task Manager does not show correct per-process CPU usage on Windows 10 1809

Under Windows 10 Pro for Workstations (Build 17763.55) Task Manager does not show correct CPU usage on a per-process basis. Processes that use up the entirety of the processor are reported to only use ...
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3answers
294 views

Windows 10 System (ntoskrnl.exe) using CPU when machine has been idle for a while

I noticed that my laptop's CPU starts getting used (maybe 15% usage?) and the CPU fan turns on, generally in the evening when my laptop has been idle for 5 minutes or so. The process using the CPU ...
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0answers
122 views

CPU-0 constantly in use, even after fresh boot

I'm having a problem with my girlfriend's PCs where CPU0 gets a constant 30-50% load. I'm not sure which process is using it but it keeps the CPU on boost clock at all times, and fans ramped up a bit....
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100 views

How to diagnose and fix wasted CPU in virtualbox

I have the following setup: Fully updated, freshly installed win10 64bit on Lenovo W550s laptop. It is running virtualbox version 5.2.18 r124319 with extension pack. Fully updated, freshly installed ...
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1answer
47 views

Extra CPU usage by Windows 10

I've have been using windows for such a long time but having a doubt that why would cpu be used even during idle . Please check the screenshot How could be that be possible only one user is logged ...
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1answer
38 views

Is there any way to speed up my CPU performance?

I am using a relatively (from a technical view) old notebook from 2012 (Asus Zenbook UX32VD) which is using an Inte Core™ i7 3517U Processor. Unfortunately, it only has one HDMI Video-Out. For the ...
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1answer
70 views

High CPU load while browsing (AMD A6)

My CPU is AMD A6-9220 RADEON R4. I use Ubuntu 16.04.1. No additional (proprietary) drivers available. CPU loads both in Chrome and Firefox, hardware acceleration is off in Chrome. It happens when I ...
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1answer
32 views

Understanding Linux CPU usage

I'm stuck with profiling a process of mine, named (see top output) xspectra-frameb. Its inner structure can be summarized as the following: 8 threads are recving bursts of data from socket ...
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1answer
28 views

How CPU speed is managed vs CPU utilization?

I often see, in the performance monitor, CPU speed varying according to CPU utilization: When utilization increases speed increases: However sometimes this relationship is inverted: Speed ...
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0answers
185 views

How to globally limit CPU execution cap on Linux?

My AMD FX 8320 has a bad habit of crashing down the OS when it is doing CPU intensive work, like CG rendering or program compilation. On Windows, to overcome this issue, what I used to do was limit ...
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3answers
216 views

High CPU on Windows 10 (system/ntoskrl.exe)

UPDATE: Fixed with Insider Build 17713.rs5_release.180706-1551 Recently my "System" process keeps using ~20% CPU. Process Explorer shows busy threads of ntoskrnl.exe!RtlAvlInsertNodeEx+0x370. Some ...
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1answer
180 views

Windows 7: Why is there a Task Manager CPU usage discrepancy?

On a Windows 7 computer, Task Manager shows 0 CPU being used by each process in the Processes tab. Yet in the Performance tab, CPU Usage and CPU Usage History both show use over 20%. Why is there a ...
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26 views

Cumulative CPU time including dead processes

Is there any way to obtain the cumulative CPU time used, over some interval, of all processes, including processes which no longer exist at the end of the interval. top -S can kind of do this, but it ...
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1answer
71 views

X230 CPU Clock Cycle Change When Battery Removed

I have a Lenovo Thinkpad x230 running Windows 10. It has a Samsung EVO SSD and works pretty good. However, it behaves strangely when the battery is out. As soon as I take the battery out, CPU clock ...
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1answer
33 views

Extensive use of CPU by antivirus

I have Guardian NetSecure anti-virus installed in my PC. Task manager shows that a process named Browser SandboxSafe Browsing Security Service(Core Browsing Protection), which seems to be part of the ...
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0answers
30 views

Does CPU utilization refers also to time of handling system calls?

Assume I want to calculate the CPU utilization of a process, which reads and write to a file. In order to read and write, the process must use system calls. This means there will be time when the ...
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1answer
363 views

CPU usage way too high in Task Manager

One service is taking a LOT of CPU usage, and it doesn't cool down. This started when I enabled some Windows features (Application Guard, Guarded Host, etc), and turned on BitLocker on my main C: ...
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0answers
199 views

Virtual Machine CPU allocation with multiple virtual cores

I'm rather new to the field and Stack Exchange, but I'll try to make this question not garbage. This has really been bugging me recently, because I'm trying to set up something on a VPS and The ...
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2answers
123 views

My CPU won't run higher than 35% in all cores

I have a Dell XPS 15 with a Intel(R) Core(TM) i5-6300HQ CPU @ 2.30GHz, 2304 MHz, 4 Cores, 4 Logical Processors. I'm struggling with an issue where I'm running UserBenchmark tests and it's returning ...
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0answers
44 views

One processor is working wierdly [duplicate]

My Overall CPU condition is fine, but one of my processors (the first one) seems to be heavily working (and I can feel that from my fan noise and the heat). I checked task manager and resource ...
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1answer
171 views

CPU under load despite removing all process affinities [duplicate]

I've installed Process Lasso and in All processes tab, set all affinities to 1-7, meaning that all the processes can be start on all my CPUs except the first one. Yet, there is a huge load on my first ...
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1answer
3k views

Stopping Microsoft Software Protection Platform Service service

The Microsoft Software Protection Platform Service process is using more than 40% of CPU usage. How do I stop this nonsense.
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1answer
147 views

i9-7940x Strange TDP increase while stress testing

I was running the CPU torture test "In-place large FFTs" from prime95 on my brand new i9-7940x while monitoring the CPU temperature and TDP with Intel Extreme tuning utility. During the test I ...
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0answers
56 views

Disable / Hide 14 Hyperthreaded Cores in Windows Task Manager

Is there any way in Windows 10 to show only CPU usage for full cores? It would be nice if Task Manager could do it, but another utility might be helpful as well. The reason is really a matter of ...
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1answer
251 views

Which protocols (TCP or UDP) consume more %CPU?

I'm sending data from the client to server using IPERF3, fist I used TCP and then UDP. I observed that maximum time TCP consumed more %cpu than UDP. Generally which one suppose to consumed more %CPU? ...
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24 views

send warning on cpu usage with centreon

I would like to create a command notification on centreon that send a warning email on CPU usage greater than 50% for at least 5 minutes. I know that I have to create a command notification, but I ...
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1answer
75 views

VPS: CPU seams to be under heavy load while no process produces such load?

I recently set up a really cheap VPS mainly for backup purposes but I also wanted it to do some small, minor tasks. But because I was too interested I wanted to take a look at CPU and Memory usage, ...
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1answer
3k views

The `System` process has a high CPU usage. ntoskrnl.exe!KeReleaseInStackQueuedSpinLock+0x1e0 is the culprit. How to fix it? [duplicate]

I noticed that the System process has a high CPU usage (specifically, around 100% of 1 core). Following Troubleshoot High CPU usage by the "System" process, I opened the properties of System in ...
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1answer
144 views

What is 'Windows host process(Rundll32)' and why is it using so much CPU?

Why is this process using my CPU so much, what is it doing in the secret? And how to fix this? And I think it affects my other programs.
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1answer
58 views

Is it ok to change CPU rate limit of SID mid process?

One process in particular is using a lot of CPU (100% and raising temps to 95C) which needs to run for long period of time(~3 hrs). Using this guide helped limit the usable bandwidth of CPU to 50%. ...
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1answer
206 views

task scheduler and search indexer consuming CPU on Windows 10

Microsoft Windows Search Indexer and 'Service Host : Task Scheduler' are consuming big portion of the CPU, something that i have noticed is that they use the same amount of CPU most of the time For ...
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1answer
75 views

Very sudden 80% decrease in CPU performance

https://prnt.sc/jap0kx In the above screenshot are benchmarks for my CPU, right is from 6 April and left is from today. As you can see, there's been a sudden 80% decrease in benchmark performance. ...
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0answers
326 views

Windows 10 Task Scheduler: Do not run task if high CPU

I have a task that runs when I'm not on my pc that uses a lot of resources, but I would like it not to run if my computer already has a high CPU usage, if the program is already running, for example. ...
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0answers
117 views

John the Ripper not fully using CPU

I'm using John the Ripper to crack an old ZIP archive encrypted with PKZIP, and although I've set the thread count to match the number of cores I have (4) only about 50-60% of my CPUs are being used ...
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2answers
90 views

Random CPU peaks?

Recently I have been experiencing random peaks in my computers CPU, while keeping task manager open I see various applications take their turn in hogging my CPU. I open a simple application like ...
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0answers
101 views

How to stop OS from limiting my CPU/RAM usage?

I have a python program that utilizes multiprocessing.Pool, which means it spawns multiple processes. The program gets 70k text files, does some processing, and saves them to another directory. I want ...
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331 views

Windows 10 Insider Preview - High CPU usage

In the last two-three months, I've got a feeling that my computer is getting slower. It's a Dell XPS 13 9550, with an i7-6500@2.50Ghz, 16Gb of RAM and a Samsung 960 NVMe SSD. Right now I'm using the ...
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0answers
184 views

AIX Command to get LPAR entitlement usage

I would like to know with a command what is the entitlement usage in my LPARs. I have thought to the topas command: save information in a file and send it to datawarehouse. topasrec -L -c 5 -s 60 ...