Date: Mon, 03 Nov 2008 00:43:37 +0200 From: Alexander Motin <mav@FreeBSD.org> To: "Alexandre \"Sunny\" Kovalenko" <gaijin.k@gmail.com> Cc: FreeBSD acpi <freebsd-acpi@freebsd.org>, freebsd-mobile@FreeBSD.org Subject: Re: Is the C3 possible with SMP? Message-ID: <490E2D19.1030502@FreeBSD.org> In-Reply-To: <1225664813.1202.5.camel@RabbitsDen> References: <490DF584.5080506@FreeBSD.org> <1225656933.1202.2.camel@RabbitsDen> <490E245C.7070900@FreeBSD.org> <1225664813.1202.5.camel@RabbitsDen>
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Alexandre "Sunny" Kovalenko wrote: > You would not happen to have USB loaded or built into kernel? If you do, At home I have external USB keyboard and mouse, so yes, it is built in. It would be difficult to unload and reload it each time I connect something. I have read in ICH8M datasheet about special feature of reducing USB busmaster activity on idle periods to support C3 state. Do you know something about it? > you will practically never go into C3. What does > > sysctl dev.cpu | grep cx_usage > > say? %sysctl -a | grep cx_ hw.acpi.cpu.cx_lowest: C2 dev.cpu.0.cx_supported: C1/1 C2/1 C3/57 dev.cpu.0.cx_lowest: C2 dev.cpu.0.cx_usage: 0.00% 100.00% 0.00% dev.cpu.1.cx_supported: C1/1 C2/1 C3/57 dev.cpu.1.cx_lowest: C3 dev.cpu.1.cx_usage: 0.00% 0.43% 99.56% -- Alexander Motin
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