Date: Tue, 18 Nov 2003 13:42:33 -0800 (PST) From: Nate Lawson <nate@root.org> To: Lukas Ertl <l.ertl@univie.ac.at> Cc: current@freebsd.org Subject: Re: Updated acpi_cpu patch Message-ID: <20031118134112.F64933@root.org> In-Reply-To: <20031118223352.W634@korben.in.tern> References: <20031118094821.T64353@root.org> <20031118221008.U621@korben.in.tern> <20031118131708.C64933@root.org> <20031118223352.W634@korben.in.tern>
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On Tue, 18 Nov 2003, Lukas Ertl wrote: > On Tue, 18 Nov 2003, Nate Lawson wrote: > > Try settings of cx_lowest of 1 and 2 (and 3 when the last C3 state is > > available). I'm interested in any benchmark results, especially IO. I'm > > hoping the scheduling of sleeps is good enough that you don't experience > > much performance loss even with lower sleeps. > > I'm gonna try some "buildkernelstones" with the different settings. If > you have some special benchmarks in mind I'd be happy to run them. That's probably ok. It has a lot of IO. > > This excerpt from truckman@'s asl shows that 4 Cx states are only > > available when the AC adapter is not attached. (The C*NA memory addresses > > appear to be managed by the BIOS and not the AML but the PSR access is > > clear). > > This part of the ASL looks the one here - let me guess, is it a ThinkPad? > :-) Yes, R40. I'm scared because I'm beginning to recognize chipsets by their ASL organization. -Nate
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