9.2-RC3 - suspend/resume causes slow system performance

Andriy Gapon avg at FreeBSD.org
Mon Sep 2 04:47:48 UTC 2013

on 02/09/2013 01:21 Adrian Chadd said the following:
> .. well, when is that pointer NULL?

It's never NULL.  But that is besides the point as we are talking about a
different check.

*     if (is_idle_disabled(sc)) {*
+       acpi_cpu_c1();

> It looks like it's supposed to be NULL for
> one pair of the two HT CPUs?
> Are you taking the whole core into an ACPI idle state if one of two logical CPUs
> representing a core is going idle?

Andriy Gapon

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