Date: Thu, 12 Jan 2006 00:45:26 -0800 From: "Darren Pilgrim" <darren.pilgrim@bitfreak.org> To: <freebsd-stable@freebsd.org> Subject: RE: powerd effectiveness Message-ID: <000001c61754$897c6340$672a15ac@smiley> In-Reply-To: <20060112073524.GA651@faust.net>
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I guess I should chime in here: 1.6GHz Pentium M notebook. Everything enabled: ACPI, USB, wireless, bluetooth. powerd_flags=3D"-i 100 -r 25" The backlight is on = continuously in FreeBSD. Lag is hard to notice, since it takes <100 ms to make the 100->1600 MHz step, but I can see brief lag if the machine is completely idle and I do something to eat the CPU that provides an immediate visual indicator of churn rate, like run an animation. Battery life: FreeBSD, powerd running: 4.5-5 hours FreeBSD, powerd not running: ~2 hours For comparison: Windows XP, aggressive power-saving: ~3 hours As for heat, the surface hot spots all stay significantly cooler with = powerd running. I don't have working system health stats in FreeBSD, so quantitative heat reports aren't possible.
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