Date: Sun, 12 Sep 2010 18:39:19 +0900 From: Norikatsu Shigemura <nork@FreeBSD.org> To: Alexander Motin <mav@FreeBSD.org> Cc: FreeBSD-Current <freebsd-current@FreeBSD.org>, Andriy Gapon <avg@icyb.net.ua>, nork@FreeBSD.org Subject: Re: CPU C-state storange on Panasonic TOUGH BOOK CF-R9 Message-ID: <20100912183919.da8f052b.nork@FreeBSD.org> In-Reply-To: <4C8C9D81.9090401@FreeBSD.org> References: <4C8BCAC5.5050008@root.org> <mailpost.1284277196.1767764.83548.mailing.freebsd.current@FreeBSD.cs.nctu.edu.tw> <4C8C8B64.8020907@FreeBSD.org> <20100912182625.c49d3f1d.nork@FreeBSD.org> <4C8C9D81.9090401@FreeBSD.org>
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Hi mav. On Sun, 12 Sep 2010 12:29:37 +0300 Alexander Motin <mav@FreeBSD.org> wrote: > > But cx_lowest is not changed: > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > > $ sysctl -a | grep cx > > hw.acpi.cpu.cx_lowest: C1 : > > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > hw.acpi.cpu.cx_lowest has default in C1. Have you tried to rise it via > sysctl? Oops, I forgot usage of cx_lowest. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - # sysctl hw.acpi.cpu.cx_lowest=C2 hw.acpi.cpu.cx_lowest: C1 -> C2 # sysctl -a | grep cx hw.acpi.cpu.cx_lowest: C2 dev.cpu.0.cx_supported: C1/3 C2/245 dev.cpu.0.cx_lowest: C2 dev.cpu.0.cx_usage: 19.34% 80.65% last 49us dev.cpu.1.cx_supported: C1/3 C2/245 dev.cpu.1.cx_lowest: C2 dev.cpu.1.cx_usage: 15.28% 84.71% last 922us dev.cpu.2.cx_supported: C1/3 C2/245 dev.cpu.2.cx_lowest: C2 dev.cpu.2.cx_usage: 77.90% 22.09% last 6034us dev.cpu.3.cx_supported: C1/3 C2/245 dev.cpu.3.cx_lowest: C2 dev.cpu.3.cx_usage: 80.28% 19.71% last 398us - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - And I can get CPU cooling ~50C(about 45C). Before sysctl cx_lowest=C2, I got 50C~! Thank you. -- Norikatsu Shigemura <nork@FreeBSD.org>
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