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CPU counts on OS X are wrong #671

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tas50 opened this issue Dec 5, 2015 · 1 comment
Closed

CPU counts on OS X are wrong #671

tas50 opened this issue Dec 5, 2015 · 1 comment
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Type: Bug Does not work as expected.
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8.9.0

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@tas50
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tas50 commented Dec 5, 2015

On OS X we report the following aggregate CPU information on a Retina MBP:
"real": 4,
"total": 8,

The problem is this system has 1 real cpu, 4 total (real cores), and 8 cores (hyperthreaded cores).

we use sysctl -n hw.physicalcpu for real CPUs which is actually real cores not CPUs.

If we want the number of physical CPUs we want hw.packages
@tas50 tas50 added the Bug label Dec 5, 2015
@tas50 tas50 mentioned this issue Dec 5, 2015
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@tas50 tas50 added this to the 8.9.0 milestone Dec 5, 2015
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tas50 commented Dec 8, 2015

Turns out we're not doing this wrong. We're just not reporting the real CPU.

@tas50 tas50 closed this as completed Dec 8, 2015
@thommay thommay added Type: Bug Does not work as expected. and removed Bug labels Jan 24, 2017
@chef chef locked and limited conversation to collaborators Nov 16, 2017
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