Questions tagged [cpu]

The part of a computer responsible for performing computations, often referred to as a processor.

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High CPU Load on CentOS 7 on esxi

We are facing some performance issues on applications in production on upgrading from CentOS 6 to CentOS 7. For debugging, we did a benchmark exercise where we ran 4 threads of the following python ...
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Windows 10 2004 not respecting processor power management settings

Even if I set the maximum processor state to 20% and minimum to 10%, it keeps my i7-3612QM 2.10Ghz (base speed) at 2.80Ghz with 5% CPU utilisation. I discovered this problem because the notebook fan ...
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How to determine the maxium ram supportted on a multi cpu s socket motherboard?

In the past only the motherboard specification mattered. But since memory controllers moved onto the cpu, it s the cpu which defines the maximum memory supported by the system. In the case of ...
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AMD Epyc on Windows slowdown under high single-threaded load

My company has just had a 128-core, dual socket AMD EPYC system for analysis work on wind farms. We use a software package which launches individual, single-threaded, old FORTRAN exes in parallel. ...
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Less overall heat? Dual-core vs Quad-core CPU running single-threaded Application

Setting: Multicore-CPU is running an application which is only using one thread. Assumption: In regards to clockspeed, 2-Core and 4-Core would need the same time to run and both would have the same ...
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Do Intel's Intel64/EM64T 64-bit x86 CPUs use an internal RISC architecture? [closed]

It's widely stated that Intel x86 CPUs use an internal RISC architecture that is not exposed to the outside. (Or just RISC-like?) examples: 1, 2, 3. If that is already false, please say so. Assuming ...
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All CPU cores have identical usage [migrated]

I have Xiaomi Mi A2 lite, which was originally running Android 9 by manufacturer, not MIUI and other utilities. Now it's running Android 10 after an upgrade. I'm tired by that applications are often ...
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Scaling Application for video decoding using ffmpeg

I am building an application to read multiple IP camera streams (rtsp) and run different Machine Learning Algorithms over it in real time. For each camera stream, I spawn an ffmpeg process which ...
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Do Operating Systems need to know which is the hardware architecture on which they are executing?

Maybe this is a basic theoric question, but I have no idea of the answer and haven't found information of this. Do Operating Systems (imagine Windows or Linux distros) need to know if they are ...
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can I create UDEV rule to keep track of events for non /dev/<device>?

Need to call a script whenever edac error is thrown up by kernel/system. I created following UDEV rule for this purpose, if the ce_count changes then I would like to execute /var/tmp/test.sh, then I ...
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I can't boot my system when USB Bluetooth pluged in

I can't boot my system when I have a USB Bluetooth device pluged in. I tried boot priority to my hard disk as well but didn't work.
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Why do different 100% cpu loads cause different temperatures on the cpu?

I have been running tests between using CPUz and OCCT. I noticed that if I set CPUz to stress the CPU with multiple threads it will never go above 70c. On the other hand running OCCT to load on the ...
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H110M PRO-VDH PLUS MOTHERBOARD AND i5-9400F won't even get to BIOS

MSI H110M PRO-VDH PLUS i-5 LGA1151 i5-9400F 2.9 GHz Silicon Power 16GB (2x8GB) DDR4 2666MHz SPEED ATX-550W Desktop Computer PSU for Intel AMD PC Power Supply (550Watt) If I have both the 24 pin atx ...
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My laptop's cpu runs at more than 150% maximum frequency [duplicate]

I recently noticed that my CPU is running at higher than it's base clock speed. Processor : Intel i5-8300H (2.30 GHz) I used to get many Blue Screen (BSoD) errors when I play games like FIFA or even ...
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CPU HEAVY POWER LIMIT THROTTLING

I have a Dell Inspiron Gaming 7577(Intel i7- 7700HQ, GTX 1060 Max Q). On startup, I'm getting an error showing AC Adapter Type, and Wattage cannot be determined. The battery may not charge. The system ...
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Cpu not boosting when undervolting

First of all here is my spec & configuration: Ryzen 5 3500 3.6Ghz(stock) Inno3d gtx1070 8Gb(stock) Team TForce Vulcan z 2x8gb 3000Mhz(OC to 3200Mhz) Asrock B450M steel legend Except for memory, ...
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Do the CPU's memory controller and RAM have the same clock speed?

My understanding is that the CPU's memory controller and RAM are driven by separate clock signals (that may be derived from the same base signal, but have different multipliers), and so their clock ...
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Computer Randomly Turns Off Playing Taxing Gamesa

I've tried everything now. I've formatted my SSD and reinstalled windows. Monitored for overheating with no obvious problems. Nothing seems to be obvious as to why this is happening. Like I said in ...
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CPU throttled to base speed or 0.8 GHz even after disabling intelppm

I have a laptop with Intel i7-4750HQ processor @ 2.00 GHz base speed and turbo boost up to 3.00 GHz. My laptop battery died a few months ago and as I have a home inverter, I've been using it with AC ...
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CPU Core vs RAM [closed]

I'm planning to build a PC next week. I've researched over the internet but I need more accurate and solid answer. I've read that the more core of the cpu, the more application it can process, same ...
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Intel i9900k turbo boost

I am running calculations on my PC with I9900k when I am at computer - boost works, 4.2-4.5ghz with no problem. When I am away and connect to the computer via remote desktop - i get the same numbers ...
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kubuntu 20.04 CPU usage with multiple sessions

I am running services like cassandra, postgres, redis etc. on my server installed with kubuntu V20.04. I have 2 users in the system, 1. Eronkan : admin user, and 2 . guest : non admin user. I have ...
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BIOS shows RAM frequency and type incorrectly

I have a PC, that I used for three years, it worked fine. I have not been using since the last 8 months, and it seems the computer is very slow. It seems for somehow the computer memory runs at 400 ...
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WMI Provider Host spiking CPU on Windows 10

Background: 2010 Dell desktop computer Windows 10, version 1909 The computer is sluggish: programs are slow to start, video is constantly buffering, etc. Task Manager shows that "WMI Provider ...
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My Cpu Temperature shows higher temperature than normal. Why?

I built a AMD Ryzen 5 2400g. for first year it works fine. then it starts to create problem. My CPU fan stops working. instead of installing new CPU fan i install my old DC fan. so every time i boot ...
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Getting total cpu time spent on debian process (even for short-live processes)

for my master's thesis I'm trying to get resource usage information about MQTT brokers on a debian machine. I'm having troubles finding a way to find out how much total cpu time debian has spent on a ...
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How to check the SMT/HT of CPU? [duplicate]

We know modern CPU have technologies such as simultaneous multithreading and hyper–threading. this can virtualize a core to be looks like multi cores. But how to check simultaneous multithreading and ...
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PC won't shut down after overclocking

I have a Windows 10 PC that has a intel 4th gen i5k processor. I overclocked it last night by increasing the cpu frequency a bit, and now it won't shut down. The weird part is that when I initiate a ...
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Intel core VID fluctuations

Processor - Intel® Core™ i5-8265U Processor CPU-Z shows 0.6XX - 1.1XX (depending on energy mode) for core VID changing constantly, a few times in second, the core speed also changes, this is also in ...
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Which one is correct? Average CPU usage in resource monitor or CPU usage in task manager?

I have a C program which I'm running in windows 10 and I need to know how much CPU it uses. When I run the program, the windows 10 task manager says the program is consuming 25% of the CPU. Although ...
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ntoskrnl High CPU usage in Windows 10 64 Bit

Does anyone experiencing high usage of CPU because of nroskrnl.exe ? It constantly use 10% of my CPU even in idle position. I've done adwcleaner Clean boot Malwarebytes And this still happened. The ...
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How to check how much CPU assigned to my VPS?

I have bought a VPS service that is claimed to give 4 cores wuth total 6GHz power. I have installed CentOS 8 on this VPS and want to check if I have that power of CPU or not? This is the info I do get ...
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1 big core or 4 small cores, which one is better of virtual private servers?

I am trying to find and buy a VPS service. I see some plans like one-3.5GHZ core, dual-2GHZ core, quad-1GHZ core, etc. I like to know which one is better and has more computational power? What I want ...
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Changing CPU info on chip itself?

I would like to know, how computers know, what CPU is installed at the moment. My hypothesis is that some info about CPU is stored in someplace in CPU. And if so, there may be method to overwrite that ...
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Google Chrome main process CPU usage always high

The CPU usage of the Google Chrome main process constantly stays high (150%–200%). I don't know if it has to do with browser extensions, but disabling all the extensions fixed the issue sometimes but ...
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Using liquid metal thermal paste on copper aluminum combination heat sink

I have this aluminum - copper combination heat sink for the processor of my desktop computer, can I use the liquid metal thermal paste on it? Specifically it is the thermal grizzly conductonaut ...
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How does cores/logical cores handle the threads [duplicate]

I have this whining question on my head, which stuck me for days. Correct me if I'm wrong: My aspect on computer architecture and organisation is that, In early day computers, there was a single ...
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Scheduled Task keeps creating dllhost processes

I have a scheduled task that runs a Powershell script that sends an http request. This task is ran under a service account. Every time the task runs, it creates a dllhost process, which eventually ...
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Mobile ARM processors for heavy 3d tasks? [duplicate]

I would like to know, why ARM processors, like Snapdragon 855 aren't being used for heavy tasks like blender, CAD, etc. Because if we look at them, their specs aren't so bad. 8 cores @ 2.84 GHz. Not ...
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i7 9700k running up to 100 degrees celcius

I have an i7 9700k cooled with an ARCTIC Freezer 34 eSports DUO in a Corsair Carbide Series SPEC-04 Tempered Glass (1x 120mm fan at the front). I remounted the cooler once, reapplied fresh thermal ...
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No Video Output after new CPU Cooler Install

I installed a new CPU cooler, and since then, I haven't been able to get anything to display on my monitor. The PC boots, and I can even SSH in and run commands in Linux, but it doesn't detect the ...
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RMA all possibly faulty components even if I am not sure which are really broken?

Full context (see below for TLDR): I built a custom PC about one and a half years ago, so all the components should still be under warranty (I can provide a full list of components if needed). The PC ...
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Configure htop to display processes by CPU or memory utilization

The top command can be configured to list the processes in descending order by CPU utilization or memory usage. # by CPU usage $ top -o CPU # by Memory usage $ top -o MEM Other configurations (such ...
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The “CPU Configurations” option does not appear in the “Advanced” tab of my BIOS

I need to enable virtualization on my PC for Operating Systems class at the college, but the virtualization option does not appear in the BIOS, even though it is theoretically compatible, below is ...
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CPU overheating when stresstesting GPU! (laptop)

So, one day I had no problems (playing GTA V), and then the next day my CPU overheats really badly up to 93°C (Tested with Speccy and CoreTemp) and this keeps happening, I used to play GTA V with max ...
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8x16 GB on an X99 motherboard with i7-5930k

I have a computer with ASUS motherboard all series motherboard x99-a. I want to upgrade it, from 64GB of ram (8x8GB) to 128GB of RAM (8x16GB). Multiple sources say that the max ram for is 64GB (...
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Game keeps crashing my Intel 7733, even though the graphics chip should be able to handle it

I recently obtained Warframe, and it crashes my laptop as soon as I get to the point where you either log in or sign up. I changed my default graphics chip for the game from my Intel(R) UHD Graphics ...
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Cpu overheating while playing video games

My PC specs are . I3 G3260 PROCESSOR . INTEL 4600 HD GRAPHICS . 4GB RAM STORAGE This is not a monster configuration for gaming but I can easily run games like Tf2 and Witcher 1 on this device ...
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My Kali Linux is Freezing Randomly (Check description)

See My issue is that my system Os freezes randomly like for example I have opened a VS code and I'm writing a code suddenly everything freezes, I tried to see the CPU usage but I saw that even closing ...
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Why do monitor goes off first before CPU goes off?

After shutting down of windows 10, Why monitor goes off first before CPU goes off? I think both should goes off at a time.

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