From: Dominik Brodowski <linux-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
To: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: ACPI Developers
<acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
Robert Moore
<robert.moore-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Bruno Ducrot <ducrot-kk6yZipjEM5g9hUCZPvPmw@public.gmane.org>
Subject: Re: Re: [PATCHES] add _CST support
Date: Thu, 23 Dec 2004 01:10:24 +0100 [thread overview]
Message-ID: <20041223001024.GB8289@dominikbrodowski.de> (raw)
In-Reply-To: <1103698332.17318.170.camel@d845pe>
> I found I had to disable the bm_check to get out of C1
> on my D600. This doesn't sound right, as bm_check
> should only have an effect on entering C3.
Huh, yes, this sounds like a bug. Can't reproduce it here, though :-(
> cat /proc/acpi/processor/CPU0/power
> active state: 3
> max_cstate: C42
> bus master activity: 00000000
> states:
> 1: type[C1] promotion[2] demotion[-] latency[001]
> usage[00000010]
> 2: type[C2] promotion[3] demotion[1] latency[001]
> usage[00003280]
> *3: type[C3] promotion[4] demotion[2] latency[085]
> usage[00000819]
> 4: type[C3] promotion[-] demotion[2] latency[185]
> usage[00000000]
>
> It appears the demotion from C4 is to C2, when one would expect C3.
Actually, this was on purpose: I think we want to leave C3-type sleep
quickly to advance bus master activity...
Dominik
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next prev parent reply other threads:[~2004-12-23 0:10 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-11-27 21:51 [PATCHES] add _CST support Dominik Brodowski
[not found] ` <20041127215118.GA30309-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-11-27 21:56 ` Dominik Brodowski
2004-12-22 5:44 ` Len Brown
2004-12-23 0:08 ` Dominik Brodowski
[not found] ` <20041223000842.GA8289-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-23 5:02 ` Len Brown
2004-12-23 13:07 ` Pavel Machek
[not found] ` <20041223130723.GE731-u08AdweFZfgxtPtxi4kahqVXKuFTiq87@public.gmane.org>
2004-12-28 3:27 ` Len Brown
2004-12-28 17:50 ` Dominik Brodowski
2004-12-28 21:28 ` Pavel Machek
2004-12-22 6:52 ` Len Brown
2004-12-22 20:37 ` Len Brown
2004-12-23 0:18 ` Dominik Brodowski
[not found] ` <20041223001830.GC8289-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-23 5:30 ` Len Brown
2004-12-23 0:10 ` Dominik Brodowski [this message]
[not found] ` <20041223001024.GB8289-X3ehHDuj6sIIGcDfoQAp7BvVK+yQ3ZXh@public.gmane.org>
2004-12-23 5:07 ` Len Brown
2004-12-22 7:22 ` Len Brown
2004-12-22 20:13 ` Len Brown
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