Date: Tue, 26 Apr 2011 01:40:18 +0200 From: Bartosz Fabianowski <freebsd@chillt.de> To: Kevin Oberman <oberman@es.net> Cc: freebsd-stable@freebsd.org, Ian Smith <smithi@nimnet.asn.au>, Jeremy Chadwick <freebsd@jdc.parodius.com>, John <john@theusgroup.com> Subject: Re: System extremely slow under light load Message-ID: <4DB60662.6040403@chillt.de> In-Reply-To: <20110425233218.60BA31CC2B@ptavv.es.net> References: <20110425233218.60BA31CC2B@ptavv.es.net>
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> The specified maximum CPU temperature is usually the same at the ACPI > _CRT, not _PSV. That is the temperature when an ACPI shutdown should be > triggered, but TCC should kick in at some point below this. This laptop is a replacement for an earlier one that had similar overheating issues. On that earlier laptop, Dell had managed to set _CRT=85°C with _PSV=95°C. This meant that the laptop did an emergency shutdown at 85°C *before* TCC got a chance to kick in at 95°C. At least on this one, _CRT=100°C and _PSV=95°C represent a more reasonable combination. > It works to tell you that TCC is doing the job, but does not explain in > any way why your CPU is so hot. I'll be very curious as to what you find > when running another OS. I experimented with a Debian Live CD. The results are here: http://lists.freebsd.org/pipermail/freebsd-stable/2011-April/062407.html - Bartosz
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