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Date:	Thu, 2 Jan 2025 10:42:18 -0500
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Subject:	Re: Enumerate performance vs powersave cores with Cygwin?
X-ASG-Orig-Subj:	Re: Enumerate performance vs powersave cores with Cygwin?
To:	Marco Atzeri <marco DOT atzeri AT gmail DOT com>,
	Cedric Blancher <cedric DOT blancher AT gmail DOT com>, cygwin AT cygwin DOT com
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From:	Eliot Moss via Cygwin <cygwin AT cygwin DOT com>
Reply-To:	Eliot Moss <moss AT cs DOT umass DOT edu>
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On 1/2/2025 10:20 AM, Marco Atzeri via Cygwin wrote:
> On 02/01/2025 15:40, Cedric Blancher via Cygwin wrote:
>> Good afternoon!
>>
>> How can I use Cygwin to enumerate performance cores, and then the
>> powersave cores? I want the CPU core numbers for later use by
>> /usr/bin/taskset
>>
>> Ced
> 
> what about
> 
> cat /proc/cpuinfo
> 
> and filter the info you need

The only things that I see that differ between the cores on my system is the
apic id, core id, and initial core id (found by doing cat /proc/cpuinfo | sort
| uniq).  Maybe there is some property of the core numbering that will tell
you, but I did not see anything else.

You can, however, get this information from the cpuid program.  See, for
example, the (synth) entry.

Cheers - Eliot Moss

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