Re[2]: notebook cpu throttling [solved]
[..] I did that, but now xorg constantly uses 20-30% CPU. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. [..] Point being, if powerd has selected your lowest cpu frequency because load is less than default (or as specified by -i and -r switches) and this is (say) 1/4 of full speed, then something that normally showed 5% cpu will now show as using 20% (of available cpu cycles at that speed) You can tune your powerd idle levels more towards performance, and/or you can set a higher minimum cpu freq with sysctl debug.cpufreq.lowest from among your available levels. [..] I suspected this; xorg just reporting to use 20-30% cpu doesn't bother my, what bothers me is the fact that mouse cursor and everything moves jerky. I'll try to raise the min. freq., maybe powerd lowers it too much.. Maybe. In one recent example, a 1400MHz box (Thinkpad T42p) had freqs all the way down to 75MHz while still running with 1mS slicing (1000HZ) apparently losing i8254 timer interrupts (when using APM, not with ACPI) powerd(8) in adaptive mode with default settings will lower cpu freq one level whenever the load idle is 90% or more, and raise freq (two levels) whenever idle gets less than 65%. Looks like if you set that to say 75% your xorg alone would kick it up. Of course you must be careful not to set the shiftpoints too close together, or you'll observe oscillation .. again, running 'powerd -v' is useful while you're playing with tuning. Re jerkiness, you might also benefit by decreasing the polling interval (how often powerd checks load average) from 500mS to perhaps half that? I'm kinda interested in these fujitsu-siemens laptops myself, so I'm still keen to see your 'sysctl dev.cpu.0.freq_levels' please? Cheers, Ian Ok, i think i got it working. dev.cpu.0.freq_levels showed about 14 possibilities. It turned out that powerd was lowering it down to 100MHz, or 50MHz per core. Playing with debug.cpufreq.lowest, i increased it gradually until KDE/Xorg behaved normal; for my system it was 800MHz, which is 400MHz/core. -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Re[2]: notebook cpu throttling [solved]
On Wed, 23 May 2007, Ghirai wrote: I'm kinda interested in these fujitsu-siemens laptops myself, so I'm still keen to see your 'sysctl dev.cpu.0.freq_levels' please? Ok, i think i got it working. dev.cpu.0.freq_levels showed about 14 possibilities. Would you care to cut'n'paste that result here, just for interest? It turned out that powerd was lowering it down to 100MHz, or 50MHz per core. Playing with debug.cpufreq.lowest, i increased it gradually until KDE/Xorg behaved normal; for my system it was 800MHz, which is 400MHz/core. I don't understand figuring it as half frequency per core, but I've not run an SMP box myself. As long as it works fine for you, that's great. Cheers, Ian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re[4]: notebook cpu throttling [solved]
Hello Ian, Wednesday, May 23, 2007, 4:27:35 PM, you wrote: On Wed, 23 May 2007, Ghirai wrote: I'm kinda interested in these fujitsu-siemens laptops myself It's an amilo pro v3205, the size of an A4 paper, 1.8 KG. This is the CPU (reasonably cheap, worth the money IMO): CPU: Intel(R) Core(TM) Duo CPU T2250 @ 1.73GHz (1729.53-MHz 686-class CPU) Origin = GenuineIntel Id = 0x6ec Stepping = 12 Features=0xbfe9fbffFPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA, CMOV,PAT,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE Features2=0xc189SSE3,MON,EST,TM2,b14,b15 AMD Features=0x10NX Cores per package: 2 so I'm still keen to see your 'sysctl dev.cpu.0.freq_levels' please? snip Would you care to cut'n'paste that result here, just for interest? dev.cpu.0.freq_levels: 1733/31000 1516/27125 1333/23000 1166/20125 1067/18000 933/15750 800/13000 700/11375 600/9750 500/8125 400/6500 300/4875 200/3250 100/1625 The're MHz/mW. snip -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: notebook cpu throttling
On Tue, 22 May 2007 00:56:08 +0300 Ghirai [EMAIL PROTECTED] wrote: Hello Roland, Monday, May 21, 2007, 11:08:13 PM, you wrote: On Mon, May 21, 2007 at 09:52:22PM +0300, Ghirai wrote: Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? You need to do three things (as root); 1) Load the cpufreq module 'kldload cpufreq'. 2) Put 'powerd_enable=YES' in your /etc/rc.conf 2) Start powerd: '/etc/rc.d/powerd start' Roland Thanks for the hint. I did that, but now xorg constantly uses 20-30% CPU. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. Note that i haven't upgraded to 7.2 yet, but i don't think this is the problem. This might not really indicate any problem. Firstly, what are your # sysctl dev.cpu.0.freq_levels Try watching the current cpu speed (dev.cpu.0.freq) while running under powerd. You can watch it shift under various loads by running 'powerd -v' in foreground, show it by running a script sleeping for eg a minute, or use (say) gkrellm with gkfreq plugin to display cpu speed constantly. Point being, if powerd has selected your lowest cpu frequency because load is less than default (or as specified by -i and -r switches) and this is (say) 1/4 of full speed, then something that normally showed 5% cpu will now show as using 20% (of available cpu cycles at that speed) You can tune your powerd idle levels more towards performance, and/or you can set a higher minimum cpu freq with sysctl debug.cpufreq.lowest from among your available levels. powerd's default shiftpoints work on my T23, but it's only a 2-speed :) Cheers, Ian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re[2]: notebook cpu throttling
Hello Ian, Tuesday, May 22, 2007, 5:08:19 PM, you wrote: On Tue, 22 May 2007 00:56:08 +0300 Ghirai [EMAIL PROTECTED] wrote: Hello Roland, Monday, May 21, 2007, 11:08:13 PM, you wrote: On Mon, May 21, 2007 at 09:52:22PM +0300, Ghirai wrote: Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? You need to do three things (as root); 1) Load the cpufreq module 'kldload cpufreq'. 2) Put 'powerd_enable=YES' in your /etc/rc.conf 2) Start powerd: '/etc/rc.d/powerd start' Roland Thanks for the hint. I did that, but now xorg constantly uses 20-30% CPU. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. Note that i haven't upgraded to 7.2 yet, but i don't think this is the problem. This might not really indicate any problem. Firstly, what are your # sysctl dev.cpu.0.freq_levels Try watching the current cpu speed (dev.cpu.0.freq) while running under powerd. You can watch it shift under various loads by running 'powerd -v' in foreground, show it by running a script sleeping for eg a minute, or use (say) gkrellm with gkfreq plugin to display cpu speed constantly. Point being, if powerd has selected your lowest cpu frequency because load is less than default (or as specified by -i and -r switches) and this is (say) 1/4 of full speed, then something that normally showed 5% cpu will now show as using 20% (of available cpu cycles at that speed) You can tune your powerd idle levels more towards performance, and/or you can set a higher minimum cpu freq with sysctl debug.cpufreq.lowest from among your available levels. powerd's default shiftpoints work on my T23, but it's only a 2-speed :) Cheers, Ian I suspected this; xorg just reporting to use 20-30% cpu doesn't bother my, what bothers me is the fact that mouse cursor and everything moves jerky. I'll try to raise the min. freq., maybe powerd lowers it too much.. -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: notebook cpu throttling
On Tue, 22 May 2007 19:35:10 +0300 Ghirai [EMAIL PROTECTED] wrote: [..] I did that, but now xorg constantly uses 20-30% CPU. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. [..] Point being, if powerd has selected your lowest cpu frequency because load is less than default (or as specified by -i and -r switches) and this is (say) 1/4 of full speed, then something that normally showed 5% cpu will now show as using 20% (of available cpu cycles at that speed) You can tune your powerd idle levels more towards performance, and/or you can set a higher minimum cpu freq with sysctl debug.cpufreq.lowest from among your available levels. [..] I suspected this; xorg just reporting to use 20-30% cpu doesn't bother my, what bothers me is the fact that mouse cursor and everything moves jerky. I'll try to raise the min. freq., maybe powerd lowers it too much.. Maybe. In one recent example, a 1400MHz box (Thinkpad T42p) had freqs all the way down to 75MHz while still running with 1mS slicing (1000HZ) apparently losing i8254 timer interrupts (when using APM, not with ACPI) powerd(8) in adaptive mode with default settings will lower cpu freq one level whenever the load idle is 90% or more, and raise freq (two levels) whenever idle gets less than 65%. Looks like if you set that to say 75% your xorg alone would kick it up. Of course you must be careful not to set the shiftpoints too close together, or you'll observe oscillation .. again, running 'powerd -v' is useful while you're playing with tuning. Re jerkiness, you might also benefit by decreasing the polling interval (how often powerd checks load average) from 500mS to perhaps half that? I'm kinda interested in these fujitsu-siemens laptops myself, so I'm still keen to see your 'sysctl dev.cpu.0.freq_levels' please? Cheers, Ian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
notebook cpu throttling
Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? Any hints appreciated. -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re[2]: notebook cpu throttling
Hello Roland, Monday, May 21, 2007, 11:08:13 PM, you wrote: On Mon, May 21, 2007 at 09:52:22PM +0300, Ghirai wrote: Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? You need to do three things (as root); 1) Load the cpufreq module 'kldload cpufreq'. 2) Put 'powerd_enable=YES' in your /etc/rc.conf 2) Start powerd: '/etc/rc.d/powerd start' Roland Thanks for the hint. I did that, but now xorg constantly uses 20-30% CPU. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. Note that i haven't upgraded to 7.2 yet, but i don't think this is the problem. -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: notebook cpu throttling
On Tue, May 22, 2007 at 12:56:08AM +0300, Ghirai wrote: Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? You need to do three things (as root); 1) Load the cpufreq module 'kldload cpufreq'. 2) Put 'powerd_enable=YES' in your /etc/rc.conf 2) Start powerd: '/etc/rc.d/powerd start' Roland Thanks for the hint. I did that, but now xorg constantly uses 20-30% CPU. That's a lot. Are you doing anything to make it work hard? Such a constantly high CPU usage is not normal, IMHO. Unless you're doing something wacky like running xearth or xlock on your root window. CPUs were running cooler indeed, but everything ran jerky, because of the xorg cpu usage. You can try to renice(8) the X server. That might make it less jerky. Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpONdiBnVYzt.pgp Description: PGP signature
Re[2]: notebook cpu throttling
Hello Roland, Tuesday, May 22, 2007, 1:12:10 AM, you wrote: On Tue, May 22, 2007 at 12:56:08AM +0300, Ghirai wrote: Hello list, I'm running 6.2-RELEASE, SMP, on a Fujitsu-Siemens Amilo Pro v3205 (Core Duo). Everything works fine, except the cpu throttling, which makes the fan start quite often. Is there any way to fix this? You need to do three things (as root); 1) Load the cpufreq module 'kldload cpufreq'. 2) Put 'powerd_enable=YES' in your /etc/rc.conf 2) Start powerd: '/etc/rc.d/powerd start' Roland Thanks for the hint. I did that, but now xorg constantly uses 20-30% CPU. That's a lot. Are you doing anything to make it work hard? Such a constantly high CPU usage is not normal, IMHO. Unless you're doing something wacky like running xearth or xlock on your root window. You can try to renice(8) the X server. That might make it less jerky. Roland No, i'm not doing anything at all. KDE loads up, and after about 10 seconds (of me doing nothing), xorg starts to use CPU, without any reason (and no HD activity). I tried it a couple of times, every time the same. I renice-ed it, no use. Are there any alternatives to powerd? Also checked logs, nothing at all. Oh, and thanks for your time :) -- Best regards, Ghirai. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: notebook cpu throttling
On Tue, May 22, 2007 at 01:23:02AM +0300, Ghirai wrote: That's a lot. Are you doing anything to make it work hard? Such a constantly high CPU usage is not normal, IMHO. Unless you're doing something wacky like running xearth or xlock on your root window. You can try to renice(8) the X server. That might make it less jerky. No, i'm not doing anything at all. KDE loads up, and after about 10 seconds (of me doing nothing), xorg starts to use CPU, without any reason (and no HD activity). Well, KDE isn't exactly a fetherweight. :/ I tried it a couple of times, every time the same. I renice-ed it, no use. It wouldn't help with CPU usage, but it might implrove the jerkiness. Are there any alternatives to powerd? Not that I know of. I don't see an obvious connection between powerd and the X server. Maybe you should ask on the freebsd-x11 list. Or you can run powerd in the foreground, and test it with several parameters, especially -i and -r. Run iostat to see if the time is spent mainly in system or interrupt mode. If so, use ktrace on the X server for a while, and then use kdump on the trace file to see what it's been doing. Also checked logs, nothing at all. Bummer. Oh, and thanks for your time :) You're welcome! Roland -- R.F.Smith http://www.xs4all.nl/~rsmith/ [plain text _non-HTML_ PGP/GnuPG encrypted/signed email much appreciated] pgp: 1A2B 477F 9970 BA3C 2914 B7CE 1277 EFB0 C321 A725 (KeyID: C321A725) pgpb8C2WAMyme.pgp Description: PGP signature
