linux-kernel - Re: swsusp and suspend2 like to overheat my laptop

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Date:	Wed, 9 Aug 2006 08:35:47 -0400 (EDT)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Pavel Machek <pavel@....cz>
cc:	LKML <linux-kernel@...r.kernel.org>,
	Suspend2-devel@...ts.suspend2.net, linux-pm@...l.org,
	ncunningham@...uxmail.org
Subject: Re: swsusp and suspend2 like to overheat my laptop


On Wed, 9 Aug 2006, Pavel Machek wrote:

>
> Okay, run top to see what goes on, and look for
> /proc/acpi/processor/*/* -- you are interested in C states before and
> after suspend.
> 									Pavel

I don't quite understand.  What am I looking for in top?

Here's the before and after:

before:

$ grep C /proc/acpi/processor/*/*
/proc/acpi/processor/CPU0/power:active state:            C1
/proc/acpi/processor/CPU0/power:max_cstate:              C8
/proc/acpi/processor/CPU0/power:   *C1:                  type[C1]
promotion[--] demotion[--] latency[000] usage[00000000] duration[00000000000000000000]
/proc/acpi/processor/CPU1/power:active state:            C1
/proc/acpi/processor/CPU1/power:max_cstate:              C8
/proc/acpi/processor/CPU1/power:   *C1:                  type[C1]
promotion[--] demotion[--] latency[000] usage[00000000] duration[00000000000000000000]


after:

grep C /proc/acpi/processor/*/*
/proc/acpi/processor/CPU0/power:active state:            C1
/proc/acpi/processor/CPU0/power:max_cstate:              C8
/proc/acpi/processor/CPU0/power:   *C1:                  type[C1]
promotion[--] demotion[--] latency[000] usage[00000000] duration[00000000000000000000]
/proc/acpi/processor/CPU1/power:active
state:            C1
/proc/acpi/processor/CPU1/power:max_cstate:              C8
/proc/acpi/processor/CPU1/power:   *C1:                  type[C1]
promotion[--] demotion[--] latency[000] usage[00000000] duration[00000000000000000000]

-- Steve

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