Date: Sat, 10 Jan 2009 10:18:30 -0500 From: "Gabriel Lavoie" <glavoie@gmail.com> To: "Dmitry Kolosov" <ivakras1@gmail.com> Cc: freebsd-acpi@freebsd.org Subject: Re: EST (Enhanced Intel SpeedStep(R) Technology) on amd64 Message-ID: <d05df8620901100718j6b89ff11s88847adacaed75d7@mail.gmail.com> In-Reply-To: <200901101059.31131.ivakras1@gmail.com> References: <d05df8620901081551j5572b45aqbed51e2955efccc8@mail.gmail.com> <496780A8.7070801@root.org> <d05df8620901091200v5eba8908kda486b722f4643c9@mail.gmail.com> <200901101059.31131.ivakras1@gmail.com>
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I have these settings in my rc.conf and /boot/loader.conf now: /etc/rc.conf: powerd_enable="YES" powerd_flags="-i 90 -r 90 -p 250" /boot/loader.conf: hint.p4tcc.0.disabled=1 hint.p4tcc.1.disabled=1 hint.acpi_throttle.0.disabled=1 hint.acpi_throttle.1.disabled=1 This way I only have the list of frequencies EST gives and powerd will raise/lower the frequency as soon as the load goes above/under 10%. I also find my system to be more responsive with a polling time under 500ms. This is why I lowered it to 250ms. I'm quite satisfied with this setup and this is what I was looking for when I installed this server. About the settings in /etc/default/rc.conf, I don't know where they are used... CPU info from sysctl: dev.cpu.0.%driver: cpu dev.cpu.0.%location: handle=\_PR_.CPU1 dev.cpu.0.%pnpinfo: _HID=none _UID=0 dev.cpu.0.%parent: acpi0 dev.cpu.0.freq: 1200 dev.cpu.0.freq_levels: 2500/88000 2000/47608 1600/44616 1200/41800 dev.cpu.0.cx_supported: C1/0 dev.cpu.0.cx_lowest: C1 dev.cpu.0.cx_usage: 100.00% dev.cpu.1.%desc: ACPI CPU dev.cpu.1.%driver: cpu dev.cpu.1.%location: handle=\_PR_.CPU2 dev.cpu.1.%pnpinfo: _HID=none _UID=0 dev.cpu.1.%parent: acpi0 dev.cpu.1.cx_supported: C1/0 dev.cpu.1.cx_lowest: C1 dev.cpu.1.cx_usage: 100.00% dev.acpi_perf.0.%driver: acpi_perf dev.acpi_perf.0.%parent: cpu0 dev.acpi_perf.1.%driver: acpi_perf dev.acpi_perf.1.%parent: cpu1 dev.est.0.%desc: Enhanced SpeedStep Frequency Control dev.est.0.%driver: est dev.est.0.%parent: cpu0 dev.est.0.freq_settings: 2500/88000 2000/47608 1600/44616 1200/41800 dev.est.1.%desc: Enhanced SpeedStep Frequency Control dev.est.1.%driver: est dev.est.1.%parent: cpu1 dev.est.1.freq_settings: 2500/88000 2000/47608 1600/44616 1200/41800 dev.cpufreq.0.%driver: cpufreq dev.cpufreq.0.%parent: cpu0 dev.cpufreq.1.%driver: cpufreq dev.cpufreq.1.%parent: cpu1 Gabriel 2009/1/10 Dmitry Kolosov <ivakras1@gmail.com>: > On Friday 09 January 2009 23:00:03 Gabriel Lavoie wrote: >> Another question. Any reason why powerd doesn't use >> dev.est.0.freq_settings when it is available instead of >> dev.cpu.0.freq_levels? >> >> On my system: >> dev.cpu.0.freq_levels: 2500/88000 2187/77000 2000/47608 1750/41657 >> 1600/44616 1400/39039 1200/41800 1050/36575 900/31350 750/26125 >> 600/20900 450/15675 300/10450 150/5225 >> dev.est.0.freq_settings: 2500/88000 2000/47608 1600/44616 1200/41800 >> >> If I don't lower the polling time of powerd to 100ms, my system >> becomes way too much unresponsive because powerd takes too much time >> to increase the frequency, step by step and there are a lot of >> settings with dev.est.0.freq_settings (14). With >> dev.est.0.freq_settings, the minimal setting is high enough so the >> system stays responsive and powerd would bring it up to max frequency >> quickly enough, even if the polling time is still kept at 500ms. This >> would work more like Windows or Linux where the lowest frequency at >> which the CPU will drop is the lowest EIST gives (here 1200 MHz). >> >> Gabriel >> >> 2009/1/9 Nate Lawson <nate@root.org>: >> > Gabriel Lavoie wrote: >> >> My processor seems correctly recognized by est under 7.1, I get the >> >> correct frequency/value pairs. What I would like is the automatic >> >> behaviour where the CPU is downclocked to 50% under no load, found >> >> under Windows/Linux and I would also like to know why estctrl isn't >> >> supported under amd64. I already contacted Colin. :) >> > >> > powerd(8) is what you want. You can set an absolute frequency for idle. >> > >> > -- >> > Nate > > What this settings for in defaults/rc.conf? > performance_cx_lowest="HIGH" # Online CPU idle state > performance_cpu_freq="NONE" # Online CPU frequency > economy_cx_lowest="HIGH" # Offline CPU idle state > economy_cpu_freq="NONE" # Offline CPU frequency > > Im using it with powerd at the same time and it runs just smoothly. > _______________________________________________ > freebsd-acpi@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-acpi > To unsubscribe, send any mail to "freebsd-acpi-unsubscribe@freebsd.org" > -- Gabriel Lavoie glavoie@gmail.com
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