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Re: Non-working CPU cores showing up

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Paul M. Foster composed on 2021-11-30 02:30 (UTC-0500):

> Here's a curious thing. I have a 10th gen Intel i3 CPU with four cores. 
> When I look at /proc/cpuinfo, it actually shows eight cores. There's a 
> line in the output of each core which is

> cpu cores       : 4

> But there are outputs for each of eight cores, numbered 0 through 7.

> Is it possible that there were eight cores on this CPU, and four of them 
> were non-working (I know it's typical to have non-working cores on a 
> die), and this file shows all the original cores?

> Or does someone have a better explanation?
										
At least one 10th gen i3 has hyperthreading, so yours probably does too.
<https://www.intel.com/content/www/us/en/products/sku/199283/intel-core-i310100-processor-6m-cache-up-to-4-30-ghz/specifications.html>
Hyperthreading typically shows up in cpuinfo as twice as many software cores as
physical cores, two threads per core.
-- 
Evolution as taught in public schools is, like religion,
	based on faith, not based on science.

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata

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Thread

Non-working CPU cores showing up "Paul M. Foster" <paulf@quillandmouse.com> - 2021-11-30 08:40 +0100
  Re: Non-working CPU cores showing up Kenneth Parker <sea7kenp@gmail.com> - 2021-11-30 08:50 +0100
  Re: Non-working CPU cores showing up Tixy <tixy@yxit.co.uk> - 2021-11-30 08:50 +0100
  Re: Non-working CPU cores showing up Felix Miata <mrmazda@earthlink.net> - 2021-11-30 09:40 +0100
  Re: Non-working CPU cores showing up piorunz <piorunz@gmx.com> - 2021-11-30 12:00 +0100
  Re: Non-working CPU cores showing up Eric S Fraga <e.fraga@ucl.ac.uk> - 2021-11-30 12:10 +0100
  Re: Non-working CPU cores showing up Dan Ritter <dsr@randomstring.org> - 2021-11-30 12:50 +0100
    Re: Non-working CPU cores showing up "Paul M. Foster" <paulf@quillandmouse.com> - 2021-11-30 17:30 +0100
      Re: Non-working CPU cores showing up Ken Cunningham <ken.cunningham.webuse@gmail.com> - 2021-11-30 18:00 +0100
        Re: Non-working CPU cores showing up Dirk Neumann <neum_d@yahoo.de> - 2021-12-01 08:40 +0100
          Re: Non-working CPU cores showing up Ken Cunningham <ken.cunningham.webuse@gmail.com> - 2021-12-01 09:40 +0100
      Re: Non-working CPU cores showing up Tixy <tixy@yxit.co.uk> - 2021-11-30 18:20 +0100

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