Date: Wed, 18 Aug 2004 03:43:14 +0400 From: Toxa <postfix@senmail.ru> To: freebsd-mobile@freebsd.org, freebsd-current@freebsd.org Subject: Re: Enhanced SpeedStep driver available Message-ID: <20040817234314.GA31323@laptoxa.toxa.lan> In-Reply-To: <6.1.0.6.1.20040816074348.03f99338@popserver.sfu.ca> References: <6.1.0.6.1.20040816074348.03f99338@popserver.sfu.ca>
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On Mon, Aug 16, 2004 at 08:06:30AM -0700, Colin Percival wrote: > Thanks to everyone who has been sending me data about their > processors (and in particular, the 90nm versions), I now have > a first draft of a Enhanced SpeedStep driver available. For > people with the appropriate processors (Pentium M only), this > makes it possible to adjust the cpu frequency via a new sysctl > (hw.est_curfreq), and have the cpu voltage adjusted at the > same time. > I've also put together a very simple control daemon which > reads kern.cp_time every second and adjusts the cpu frequency > based on the fraction of cpu time which is idle. This increases > my laptop's battery life by around 40%. > All the code is online at > http://www.daemonology.net/freebsd-est/ > Assuming I don't hear any major bug reports in the next few > days, I'll package these into ports and hopefully get them into > the ports tree in time for 5.3-RELEASE. I'm curious about processor's name. My laptop (sony vaio pcg-v505bx) has a Pentium 4 M, but not Centrino (which name is... Pentium 4 M too), afaik it's capable to support speedsted, (enhanced or not?). When loading your module: [(3:40)(85.32%)(p1):~/tmp/est ] sudo kldload ./est.ko [(3:40)(85.32%)(p1):~/tmp/est ] kldstat|grep est 27 1 0xc23cd000 2000 est.ko [(3:40)(85.32%)(p1):~/tmp/est ] sysctl hw.est_curfreq [(3:40)(85.32%)(p1):~/tmp/est ] sysctl hw.est_freqs hw.est_freqs: e.g. nothing Is this for Centrino processors only? p.s.: from dmesg: CPU: Mobile Intel(R) Pentium(R) 4 - M CPU 2.00GHz (1193.11-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0xf27 Stepping = 7 Features=0xbfebf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE> -- Anton A. Karpov PGP key: http://www.toxahost.org/pgp/pubkey.asc You can finger me @toxahost.org for my current status #-------------------------------------------------- "Anyone who quotes me in their sig is an idiot." Rusty Russell. #--------------------------------------------------
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