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Questions tagged [core]

A core generally refers a single CPU core or to half of a piledriver module.

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Is this a standard numbering scheme for logical CPUs?

This is a listing from Ubuntu 23.10 on AMD Ryzen 5 7640U: paul@box4x4:~$ lscpu -ae CPU NODE SOCKET CORE L1d:L1i:L2:L3 ONLINE MAXMHZ MINMHZ MHZ 0 0 0 0 0:0:0:0 yes 4971....
Paul Jurczak's user avatar
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RHEL 7.x machine with very low CPU idle + how to set idle threshold

we have cluster of RHEL 7.9 machines, we are using this server as kafka client producers. each machine have the following spec (DELL physical machines) 48 CORES 128G memory on most machines we saw ...
King David's user avatar
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Bitcoin Core not updating to latest block

I have Bitcoin Core 24.0.1 64bit on Windows 10 which is seemingly stuck on updating with the latest transactions. It seems also that I have port 8333 blocked (checked on https://canyouseeme.org/), but ...
nan's user avatar
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Linux sometimes recognizes twice the number of cores

Recently, my department bought two pretty good (HP Z840 Workstation) second hand computers, supposedly identical. I installed Linux (CentOS 9) in both of them, no problem. When I view the CPU info ...
Gonza 's user avatar
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I have an Intel i9 12900k which has 16 cores but my system recognizes two cpu with 8 cores each

System showing 2 cpu I have an Intel i9 12900k which has 16 cores but my system recognizes two cpu with 8 cores each.
Gaurav Aggarwal's user avatar
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Why does adding CPU cores make programs run faster?

Intel currently offers a 5.5GHz CPU, which represents the number of instructions the CPU can execute over time. If a CPU has more than one core, it can execute more than one process at a time. However,...
Julius Hamilton's user avatar
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How to uninstall PAEAFLT.sys drivers that do not belong to any device but that is forbidding from enabling Memory Integrity in Core Isolation?

Core isolation, Memory integrity, What if it says I have an incompatible driver?: https://support.microsoft.com/en-us/windows/core-isolation-e30ed737-17d8-42f3-a2a9-87521df09b78 As you can see, the ...
Digital Farmer's user avatar
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Constant temperature fluctuation for a particular core on an Intel i7-9750H CPU

I have a MSI GE75-9SG laptop with an Intel i7-9750H processor and RTX 2080 (non Max-Q) GPU. I just did a clean install of Windows 11 21H2 (Build: 22000.593) I have Nicehash QuickMiner running for a ...
Vinayak's user avatar
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34 votes
6 answers
14k views

How many physical CPUs does my machine have?

I am a bit confused about the number of CPUs my server has. It is running on Intel(R) Xeon(R) Gold 6242R CPU @ 3.10GHz which according to official Intel docs contains 20 physical cores. The problem ...
eddyP23's user avatar
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My dual-core Celeron-4205 is only showing 1 core. What happened to the other core?

Where Is My Another Cores My One Core Is Missing Please Resolve My Issue Please Reply Me Soon
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Would I really notice the difference between 6 and 8 cores on an Intel Core i7?

I am looking to buy a reasonably high end laptop. This is proving to be extremely difficult because of a worldwide shortage of GeForce RTX 3060 and 3070 graphic cards. I am a coder, and my prime ...
Mawg's user avatar
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How is hyper threading more efficient? [duplicate]

I read a lot about Hyper threading and how it works. One thing I still can't 'digest' is how is it more efficient than not using hyper threading at all? Hyper-Threading is where two threads are able ...
Stefan Jankovic's user avatar
1 vote
0 answers
172 views

Linux keeps all cores at the (roughly) same frequency during single threaded load

I am using TLP with powersave governor and intel_pstate driver with Intel Sidestep enabled. I noticed that the powersave governor does its job, the cores when idle sit at 800Mhz, BUT when any kind of ...
Foobar's user avatar
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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 ...
Neminda Prabhashwara's user avatar
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1 answer
2k views

How can I change the default port (8333) of Bitcoin Core on Ubuntu 20 LTS?

I am trying to set up a second machine on my network to run Bitcoin Core. As I’m port-forwarding on my router port 8333 already (the default port of Bitcoin Core), I can’t use the same port on my ...
Singh Ashong's user avatar
1 vote
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AMD Ryzen 5 3600 + Ubuntu 20.04 problems

I have Ryzen 5 3600, Gigabyte X570 GAMING X and Radeon RX 580 Series. I installed Ubuntu 20.04 and it is loaded with kernel parameter acpi=off but now system recognize only 1 core(lspcu, cut /proc/...
Oleg Iskovski's user avatar
5 votes
2 answers
21k views

GPU cores vs. CPU cores

A (say NVidia) GPU is made of streaming multiprocessors consisting of arrays of streaming processors or CUDA core. There are 5120 CUDA cores on V100. A general purpose (say Intel) CPU has "only" up to ...
kiriloff's user avatar
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1 answer
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Athlon 64 single core and dual core compability

I'm trying to revive an old MSI K9A board (MS-7280). According to the error leds it seems the CPU is defect (according to the manual). I can't find any specific references to the CPU compatibility "...
Albin's user avatar
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Omnisharp not working on Manjaro Linux

today I've installed .NET Core 3.0 on my newly setup Manjaro system but I get an error everytime I want to open a Project with VS Code. The following is the output of "dotnet --info": .NET Core SDK ...
Lukas Köhler's user avatar
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1 answer
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Pull container from dockerhub

Hi I am new on docker and I created a default .net core web mvc application with docker for linux from my windows 10 machine.It was running and push it to dockerhub.From my ubuntu 16.04 32bit (i386) ...
Konstantinos's user avatar
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1 answer
2k views

wso2 api manager SSL Exception

I just set up WSO2 2.6 in windows 10 and publish simple .net core web api without any error tracing on server log,but when i invoke api with OAuth authentication from WSO2 Store, its return SSL ...
kalindu kasun's user avatar
1 vote
1 answer
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Unable to View Local .Net Core ASP Application

Scenario Attempting to view locally published .Net Core ASP application from local inetpub/wwwroot/ directory. Issue Able to view application on laptop (just fine), however, not able to view the ...
NobleCloud's user avatar
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142 views

Does Windows have a "this core may ONLY run this program and should otherwise be idle" setting?

Someone in The Bridge, the main chatroom for Arqade, our gaming site, asked whether they can fully dedicate a CPU core to a specific program, to the point that if that program isn't active, the core ...
Nzall's user avatar
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3 votes
1 answer
633 views

How does the Docker daemon know about the available hardware resources?

We are running Docker on a RedHat VM on a VMWare hypervisor. When we added more virtual cores (vCPUs) to the VM the RedHat sees the additional resources and can address it but not the containers ...
Christoph Krüger's user avatar
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1 answer
44 views

CPU works louder when I am plugging my laptop in

I noticed that my CPU works louder when I am plugging my laptop in. I am using an HWMonitor Version 1.40.0 Driver version 148 to check my status of CPU. I am worried that my laptop can be damaged ...
stardustsky's user avatar
1 vote
1 answer
8k views

.NET Core IIS websites stopped working HTTP Error 500.19 - Internal Server Error

After I updated vs2017 to the latest version this morning and uninstalled vs2019 Enterprise Preview (v16.0) and installed vs2019 Enterprise (v16.1), and installed latest Windows updates all .NET Core ...
Peter Nazarov's user avatar
2 votes
1 answer
230 views

Is there a significant issue to allocating all available cores to one VM if that is the only major task running?

I have a one-off task that requires me to use a VM to fix a build bug a software project using SCons (Python). The testing cycle is fairly short, resulting in frequent rebuilds. I'm using a 4-core ...
user3.1415927's user avatar
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1 answer
175 views

How determine that app start as Linux daemon

I have console app that would start as console and as Linux daemon. How can I determine that app started as Linux daemon (not console)?
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How to remove and prevent all processes except one that I choose from certain core in practice (win10)?

Problem: I have a single core process that has oscillating load (sc2 path optimizer). How can I make a script that moves this process to a certain core and prevents other processes to enter that core?...
Juha's user avatar
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1 answer
241 views

Power consumption of a core with two hardware threads

If a core has two hardware threads, will the core consume the same power in the following two scenarios: a) only one thread is busy, the other is idle b) both threads are busy As far as I know, the ...
E-O's user avatar
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1 answer
9k views

Are the temperature and fan speed normal in my laptop?

My laptop is HP Pavilion DV6-6b51ea. The laptop is around 5 years 10 months old. Configuration: Intel Core i5 2430M 2.40 GHz 6 GB RAM x64 based processor ATI Radeon HD 6490M gpu Intel HD 3000 ...
jabi's user avatar
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2 answers
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Processor speed locked at low GHz after computer runs for a few minutes

Lately I realize that my Processor speed will reduce and locked at some level after some minutes I ran the Computer (0.8GHz). When I first run the Computer, my Processor speed is doing fine(1.5GHz), ...
Blatz's user avatar
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0 votes
2 answers
3k views

Threads (versus cores) and rated CPU clock speed, what is the effect?

If my CPU is rated at 2GHz, and has 4 cores supporting 8 threads, are all 8 threads running at the rated clock speed? Or are they running at 1GHz each since there are twice as many threads as cores?
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1 answer
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How to install something on Ubuntu core?

I have an arm-based computer(http://wiki.friendlyarm.com/wiki/index.php/NanoPi_M1) that has it's ported Ubuntu core (http://wiki.friendlyarm.com/wiki/index.php/Ubuntu_Core_with_Qt-Embedded). But I man ...
user3486308's user avatar
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1 answer
108 views

What does it mean when you say single-CPU operation in multi core CPUs?

I've been reading about Xeon CPUs in Wikipedia and this terminology has come up. I've tried doing a web search and I can't seem to find anything that can help me clarify my question.
Rye Salvador's user avatar
4 votes
3 answers
2k views

ACPI.sys (System process) maxes out one CPU core on Windows 10

I noticed a process named System seems to constantly use up to 20% of my CPU, it also maxes out one of my CPU's cores. Performance seems to be unaffected (as far as I know). I used Performance ...
Dextra's user avatar
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3 votes
0 answers
2k views

ASP.NET Core MySQL DB scaffold not working (could not find provider assembly)

This site shows how to reverse-engineer an existing database to an ASP.NET Core EF model. What I found out is that the currently correct command should be (instead of "scaffold-dbcontext"): dotnet ...
Schaussi's user avatar
4 votes
1 answer
17k views

How to determine number of GPU cores being utilized for a process?

As we know, if there are 4 cores in CPU, then maximum utilization would be 400%, and if the total utilization is 200% then it will be analysed as 2 cores has been used up among 4 cores. Thus in case ...
Vanns's user avatar
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1 vote
0 answers
24 views

accessing core microarchitecure in QEMU, HOW?

I have two questions: 1) Is QEMU a full system simulator or a virtalization layer? 2) when it installed, Is it possible to access micro architecture elements of a core such as registers ,...? I need ...
sami's user avatar
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1 vote
1 answer
229 views

Are cores in a CPU package always identical?

By identical, I mean having the same signature - family, model, stepping and brand string of the CPU (which essentially identifies a CPU model uniquely) If I'm not wrong, a CPU package goes into a ...
Bruce's user avatar
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-1 votes
1 answer
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At what temperature I should install another cooler for the processor?

I have a Intel dual core processor, code name Ivy Bridge, frequency ~3GHz, max TDP is 55.0W. I use Core Temp to monitor the temperature while all cores are at nearly 100% load. The temperature ...
Happy Face's user avatar
0 votes
1 answer
3k views

If a motherboard can support 3rd & 2nd generation processor, can it support 1st generation processors?

I have just bought a core i3 first generation(Intel® Core™ i3-530 Processor (4M Cache, 2.93 GHz Socket LGA1156) but I looked up the website of the motherboard(H61M-K ASUS) and it showed me this:- ...
Randomizer420's user avatar
1 vote
1 answer
236 views

dmidecode: Find accurate number of cores being used

I am trying to understand my dmidecode output. For simplicity let's say I am using this dmidecode output as my reference. For both CPU1 and CPU2, dmidecode says there are 4 cores enabled and 8 threads....
Bijan's user avatar
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-1 votes
1 answer
643 views

Get VM GUI on a core server via VNC

I have a linux server without GUI running several Windows 7 VMs. I would like to view the screen of the VMs. Is it possible to connect to the linux server with a desktop computer in order to display ...
ctaf's user avatar
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2 votes
0 answers
3k views

How many VM's I can create and share CPU cores on 24 core CPU?

I have a server that has 2 (CPU) - 24 cores. Is there a limit how many VM's I can create and assign CPU's? Ex: Is there a limit that, I can only create 6 VM's that have 4 CPUs each? or 12 VM's with 2 ...
TusharG's user avatar
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0 votes
1 answer
468 views

Does overclocking have any benefit on a processor that already has Intel Turbo Boost? [closed]

I've read that when the model number of an Intel Core i5 or i7 processor ends in K, it means that it is "unlocked" and can be manually overclocked by the end user. These processors also come with ...
Egghead99's user avatar
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1 vote
1 answer
26 views

Drivers and core clock

I just got a new video card it works and everything plays great. It does not show up on my details in device manager or any of my overclocking utilities. It's an MSI 780 GTX ti. but it shows in all ...
Daniel Oest's user avatar
1 vote
1 answer
6k views

Is it better to have two cores or four logical processors?

My system has two physical cores, and four logical processors. To my understanding this means that I have four CPUs due to Hyperthreading, and work is distributed as evenly as possible. However, I ...
user avatar
0 votes
1 answer
1k views

Cores and threads? How does it all work exactly?

I am confused by this ... if a CPU has 2 logical cores, it can run two programs 100% concurrent, yes? Otherwise, 2 programs on one CPU must be 100% time-divided (can't run independently as the same ...
user avatar
0 votes
1 answer
2k views

How to check core dump enabledness status in bash?

$ ulimit unlimited $ sleep 2 && killall -SEGV cat & [1] 11358 $ cat Segmentation fault $ ulimit -c unlimited $ ulimit unlimited $ sleep 2 && killall -SEGV cat & [1] 11462 $ cat ...
Vi.'s user avatar
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