Date: Thu, 25 Mar 2010 13:20:09 GMT From: Hannes <freebsd@soulrebel.in-berlin.de> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/140361: [cpufreq] speed-stepping broken on PhenomII (acpi?) Message-ID: <201003251320.o2PDK9ro052780@freefall.freebsd.org>
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The following reply was made to PR kern/140361; it has been noted by GNATS. From: Hannes <freebsd@soulrebel.in-berlin.de> To: bug-followup@freebsd.org Cc: Alexander Best <alexbestms@wwu.de>, brucec@freebsd.org Subject: Re: kern/140361: [cpufreq] speed-stepping broken on PhenomII (acpi?) Date: Thu, 25 Mar 2010 13:12:59 +0000 Thanks for your replies! > i don't think you're looking at the right sysctl values. you should > be checking `sysctl dev.cpu.0.freq dev.cpu.0.freq_levels`. > I checked those, they looked fine, so i didnt mention it: dev.cpu.0.freq: 3000 dev.cpu.0.freq_levels: 3000/23530 2300/17400 1800/14520 800/7315 (freq just never goes down [unlike my intel laptop]) > 'dev.cpu.0.freq_levels' tells you what steppings are available and > 'dev.cpu.0.freq' which current stepping your cpu is using. They look right, or not? > also be > sure you're running powerd (`/etc/rc.d/powerd onestart`). hannes@fbsdmain /c/h/hannes> ps ax | grep powerd 925 ?? Ss 0:05,09 /usr/sbin/powerd -a adaptive -i adaptive > i'm not an expert on est though. `dmesg -a|egrep '^est[0-9]*'` > reports: > > est0: <Enhanced SpeedStep Frequency Control> on cpu0 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 925092506000925 > est1: <Enhanced SpeedStep Frequency Control> on cpu1 > est: CPU supports Enhanced Speedstep, but is not recognized. > est: cpu_vendor GenuineIntel, msr 925092506000925 > > on my machine so i'm not sure how much powersaving is really being > performed. your cpu might report the same. fbsdmain# dmesg -a | egrep '^est[0-9]*' fbsdmain# Hm, whats this? Never saw it before, and it isnt mentioned in the freebsd-wiki and has no man-page, also i can't load it as module and dont have it built-in. Are you on current maybe? Concerning bruce's input: hannes@fbsdmain /c/h/hannes> sysctl dev.cpu | grep cx dev.cpu.0.cx_supported: C1/0 dev.cpu.0.cx_lowest: C1 dev.cpu.0.cx_usage: 100.00% last 500us dev.cpu.1.cx_supported: C1/0 dev.cpu.1.cx_lowest: C1 dev.cpu.1.cx_usage: 100.00% last 500us dev.cpu.2.cx_supported: C1/0 dev.cpu.2.cx_lowest: C1 dev.cpu.2.cx_usage: 100.00% last 500us dev.cpu.3.cx_supported: C1/0 dev.cpu.3.cx_lowest: C1 dev.cpu.3.cx_usage: 100.00% last 500us -> FreeBSD doesnt recognize any other states. Thats probably the issue, or not? > anyway it's probably better to send a message to stable@. So this is not a Bug? Thanks for your help!
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