My computer's CPU is AMD 9754, with 128 cores and 256 logic processors. But why does nodejs get 64 through os. cpu(). length? How to obtain the correct logical processor

[wangzhiguoengineer]

Node.js Version

v22.3.0

NPM Version

10.8.1

Operating System

Windows 11 Professional Workstation Edition

Subsystem

child_process, cluster, v8

Description

My computer's CPU is AMD 9754, with 128 cores and 256 logic processors. But why does nodejs get 64 through os. cpu(). length? How to obtain the correct logical processor

Minimal Reproduction

import os from 'os'
console.log(os.cpus().length)

Output

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[RedYetiDev]

@nodejs/os PTAL

[wangzhiguoengineer]

@nodejs/os PTAL

What does this mean? I didn't understand @RedYetiDev

[RedYetiDev]

"PTAL" means "Please Take A Look", and the @nodejs/os means that I pinged the OS team.

[RedYetiDev]

Stalled for the @nodejs/os team to take a look. If they don't in a few more days I'll reach out.

[KalharaBatangala]

Sometimes, it may be a limitation that has been implemented within Node.js

[gireeshpunathil]

what does systeminfo command say on the number of processors?

https://github.com/nodejs/node/blob/2c86f6a490caa3ff86be345e0a887233ffb823a2/deps/uv/src/win/util.c#L548-L549

is responsible for obtaining CPU count in windows, which I believe is inline with systeminfo command o/p.

[wangzhiguoengineer]

@gireeshpunathil

[gireeshpunathil]

@wangzhiguoengineer - thanks, can you also run systeminfo command and share the relevant part of the output?