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Zentoo
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Joined: 18 Nov 2002
Posts: 197
Location: /dev/console
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 Posted: Fri Sep 29, 2006 12:51 am Post subject: |
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| Quote: | | Are you sure it really affects the FSB ? It can easily be a display problem. Many tools related to C-n-Q assume the FSB is at 200, and will display a wrong (lower in your case) frequency, but this does not affect the CPU. |
Widan: you're right on this point. /proc/cpuinfo display a bad CPU speed but actually the CPU speed is really higher as some benchmarks could confirm it and there is something to see it easily: the bogomips !
Bogomips rank seems to be just an easy calcul:
bogomips = frequency (Mhz) * ram (Gb) * 2
So for my AMD64 3800+ @2Ghz , i have 4000 bogomips and with a FSB overclocked at 250, i get 5000 bogomips and the indication of bogomips is acurate when the CPU speed is not. So it's an easy way to check really the CPU frequency when you use C-n-Q and overclocked CPU.
So now I'm really amazed about my cpu that run overclocked, undervolted with cool'n'quiet ...
I get an easy 2.50Ghz @1.35v for the high step
and an 1.25Ghz @1.10v for low step.
I need just to determine the minimum voltage for the intermediate step at 2.25Ghz.
That's great to have an ~4800+ for the price and voltage of a 3800+ using even the C-n-Q now 
Thanx for your patch really ! 
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ACCEPT_KEYWORDS="~amd64"
USE="-systemd"
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widan
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Joined: 07 Jun 2005
Posts: 1512
Location: Paris, France
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| Posted: Fri Sep 29, 2006 8:21 am Post subject: |
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| Zentoo wrote: | Bogomips rank seems to be just an easy calcul:
bogomips = frequency (Mhz) * ram (Gb) * 2 |
The RAM size doesn't matter. For relatively recent x86 CPUs, bogomips is about twice the frequency. |
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razze
Apprentice
Joined: 09 Mar 2005
Posts: 161
Location: Espoo, Finland
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| Posted: Fri Sep 29, 2006 12:59 pm Post subject: |
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Zentoo: that sounds nice! I have the same CPU and would like to try this as well, so could you please post your settings.
Razze
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Linux User #393524
AMD Athlon 64 X2 3800+ @2,3 GHz, Asus A8V, VIA K8T800PRO, Nvidia GeForce 7600GS, 2 Gb Dual Channel DDR RAM, 2x Samsung SP120 200Gb, 2x WD 320Gb, Plextor PX-716A, linux-2.6.31-gentoo-r10 |
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Zentoo
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Joined: 18 Nov 2002
Posts: 197
Location: /dev/console
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| Posted: Fri Sep 29, 2006 3:16 pm Post subject: |
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| Quote: | | Widan: The RAM size doesn't matter. For relatively recent x86 CPUs, bogomips is about twice the frequency. |
Allright I take it in consideration. Thanx.
| Quote: | | Razze: that sounds nice! I have the same CPU and would like to try this as well, so could you please post your settings. |
My actual AMD64 X2 3800+ settings:
STOCKS VALUES
2.00Ghz - 1.35v - FSB 200 (4000 bogo)
1.80Ghz - 1.20v - FSB 200 (3600 bogo)
1.00Ghz - 1.10v - FSB 200 (2000 bogo)
OVERCLOCKED VALUES
2.50Ghz - 1.35v - FSB 250 (5000 bogo)
2.25Ghz - 1.30v - FSB 250 (4500 bogo)
1.25Ghz - 1.10v - FSB 250 (2500 bogo)
Actually, only the step at 2.25Ghz@1.3v is not optimal (i need to make more tests)
To test each step, put your governor on userspace and specify manually the frequency:
| Code: | echo "userspace" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo "2000000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
echo "1800000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed
echo "1000000" > /sys/devices/system/cpu/cpu0/cpufreq/scaling_setspeed |
And remember that is not real frequency, but stock ones, check your bogomips to be sure !
Think to check you voltages and tempeartures with lm-sensors or mbmon.
Think to check your logs for MCE (Machine Check Exception for undervolt problems).
And burn with two separate process of mprime -t (launched from differents copys of prime directory to not have temp data corruption) to check the overclock.
My ultimate test for stability: emerge of glibc and gcc continuously. (think to quickpkg them before !)
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ACCEPT_KEYWORDS="~amd64"
USE="-systemd"
Desktop: openbox|picom|ROX-Filer|wbar|window maker dockapps
Hardware: Ryzen 7950X | 64 Gb | Nvidia 3080Ti |
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Fri Dec 29, 2006 10:17 am Post subject: |
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Hi,
I want to ask, if maybe someone could post a tutorial on wiki about this?
Greets |
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dark.x
n00b
Joined: 08 Apr 2007
Posts: 2
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| Posted: Sun Apr 08, 2007 12:50 pm Post subject: |
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where do i get a vcore patch for the latest kernel?
i am no gentoo user at all, but this board is amazing!
I need this vcore Patch for my AMD Turion X2, please help 
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greets darkX
Notebook: HP nx6325 (Turion X2 TL-52 (1,6GHz)) - Gentoo/Debian/Ubuntu/i386 (3D Desktop [Xgl])
Desktop: AMD Athlon 2000 / GeForce 4 Ti-4200 - Edgy 6.10 @ 3D-Desktop |
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Sun Apr 08, 2007 3:52 pm Post subject: |
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| dark.x wrote: | where do i get a vcore patch for the latest kernel?
i am no gentoo user at all, but this board is amazing!
I need this vcore Patch for my AMD Turion X2, please help |
The two patches apply to the 2.6.20 without problems.
You just have to get the latest version of either the v1 or the v2. |
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Phlogiston
Veteran
Joined: 27 Jan 2004
Posts: 1925
Location: Europe, Swizerland
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| Posted: Fri May 04, 2007 12:11 pm Post subject: |
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Are you guys able to use undervolting with latest kernels .21 for e.g.? I can't access the sysfs interface, everytime it hangs.
What kernel config do you use? There were some changes about the tables in it right?
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Workstation: 5.1 SurroundSound, LIRC remote control; Laptop [IBM-T43]: patched sources, s2disk/ram, fingerprint sensor |
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Anaki
n00b
Joined: 06 Nov 2005
Posts: 34
Location: Hungary
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| Posted: Fri May 04, 2007 2:06 pm Post subject: |
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Hi!
It works well for me
(I'm using 2.6.21-viper1) |
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Phlogiston
Veteran
Joined: 27 Jan 2004
Posts: 1925
Location: Europe, Swizerland
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| Posted: Fri May 04, 2007 2:24 pm Post subject: |
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| Anaki wrote: | Hi!
It works well for me
(I'm using 2.6.21-viper1) |
Hmm I tried the same kernel with no luck, aso you can read in that thread
Please please post your config!
/edit: And tell me your processor specs
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Anaki
n00b
Joined: 06 Nov 2005
Posts: 34
Location: Hungary
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| Posted: Fri May 04, 2007 2:35 pm Post subject: |
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Sorry, i forgot it : http://w3.externet.hu/~Anaki/config
I have an AMD64 3000+ (Venice core) processor:
| Code: | powernow-k8: Requested Voltage for id0 is 1150 mV default voltage is 1400
powernow-k8: Performing required adjustment of 250 mV or 10 25mV steps
powernow-k8: Requested Voltage for id1 is 1100 mV default voltage is 1100
powernow-k8: Performing required adjustment of 0 mV or 0 25mV steps
powernow-k8: 0 : fid 0xa (1800 MHz), vid 0x10
powernow-k8: 1 : fid 0x2 (1000 MHz), vid 0x12
powernow-k8: ph2 null fid transition 0xa
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Phlogiston
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Joined: 27 Jan 2004
Posts: 1925
Location: Europe, Swizerland
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| Posted: Fri May 04, 2007 2:45 pm Post subject: |
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| Anaki wrote: | Sorry, i forgot it : http://w3.externet.hu/~Anaki/config
I have an AMD64 3000+ (Venice core) processor:
| Code: | powernow-k8: Requested Voltage for id0 is 1150 mV default voltage is 1400
powernow-k8: Performing required adjustment of 250 mV or 10 25mV steps
powernow-k8: Requested Voltage for id1 is 1100 mV default voltage is 1100
powernow-k8: Performing required adjustment of 0 mV or 0 25mV steps
powernow-k8: 0 : fid 0xa (1800 MHz), vid 0x10
powernow-k8: 1 : fid 0x2 (1000 MHz), vid 0x12
powernow-k8: ph2 null fid transition 0xa
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Hmm maybe it does not work on a pentium, would be weird though, anyone else?
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Workstation: 5.1 SurroundSound, LIRC remote control; Laptop [IBM-T43]: patched sources, s2disk/ram, fingerprint sensor |
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Fri May 04, 2007 4:43 pm Post subject: |
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This thread only is about AMD CPUs, there is another one for the Intel CPUs.  |
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dark.x
n00b
Joined: 08 Apr 2007
Posts: 2
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| Posted: Wed May 16, 2007 10:56 am Post subject: |
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hello,
has anyone a vcore patch for the latest kernel (2.6.21) and an amd turion X2?
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greets darkX
Notebook: HP nx6325 (Turion X2 TL-52 (1,6GHz)) - Gentoo/Debian/Ubuntu/i386 (3D Desktop [Xgl])
Desktop: AMD Athlon 2000 / GeForce 4 Ti-4200 - Edgy 6.10 @ 3D-Desktop |
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Wed May 16, 2007 1:03 pm Post subject: |
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| For me the 2.6.16-vc2 patch does apply cleanly, I didn't test the other one. |
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molot
Apprentice
Joined: 26 Feb 2005
Posts: 214
Location: Warsaw, Poland
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| Posted: Sat Aug 25, 2007 8:55 pm Post subject: |
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It may be a stupid question, but does anyone have an ebuild for this patches?
I really don't think I'd like to learn play with kernel source on my "production" machine.
By the way - is there a simple way to add more steps? Now I have 1000 1800 2000, I'd like (for example) stepping by 200 MHz from 400~600 up to 2000. 400MHz is truly all I need and more whilst my machine is in idle state, waiting in case I'll need it remotely.
ADDED:
I've used patch from http://files.codepilot.net/powernow-k8-vcore_list-2.6.16-rc2-v2.diff on 2.6.22 kernel. It's not working
| Code: | dmesg | grep powernow
Command line: powernow-k8.vcore_list=850,1100,1300
Kernel command line: powernow-k8.vcore_list=850,1100,1300
powernow-k8: Found 2 AMD Athlon(tm) 64 X2 Dual Core Processor 3800+ processors (version 2.00.00)
powernow-k8: Requested 0MHz with 850mV
powernow-k8: Requested 0MHz with 1100mV
powernow-k8: Requested 0MHz with 1300mV
powernow-k8: invalid powernow_table
powernow-k8: Requested 0MHz with 850mV
powernow-k8: Requested 0MHz with 1100mV
powernow-k8: Requested 0MHz with 1300mV
powernow-k8: invalid powernow_table |
Is it worth trying patch from http://people.fh-landshut.de/~sprecht/gentoo/powernow-k8-vcore_list-2.6.18.patch ?
I'm trying it anyway but any support would be appreciated.
ADDED:
It wasn't worth it, hangs my box.
Any help at all?...
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"I just have to run faster than the slowest party member" |
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pussi
l33t
Joined: 08 May 2004
Posts: 727
Location: Finland
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| Posted: Sun Sep 02, 2007 7:36 pm Post subject: |
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the 2.6.18 patch works fine for me
did you try setting higher voltages with it?
maybe your cpu just won't work with that low frequencies |
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molot
Apprentice
Joined: 26 Feb 2005
Posts: 214
Location: Warsaw, Poland
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| Posted: Sun Sep 02, 2007 7:49 pm Post subject: |
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I've unmerged and emerged sources, applied the patch again, and that time it worked. It had to be a stupid mistake on some point...
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"I just have to run faster than the slowest party member" |
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DocterD
Tux's lil' helper
Joined: 15 May 2004
Posts: 129
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| Posted: Fri Dec 28, 2007 10:11 am Post subject: |
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| is there a new version for 2.6.24? Because those patches are pretty broken now, since they merged i386 and x86_64. |
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Fri Dec 28, 2007 10:53 am Post subject: |
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| DocterD wrote: | | is there a new version for 2.6.24? Because those patches are pretty broken now, since they merged i386 and x86_64. |
http://www.berniyh.net/powernow-k8-vcore_list-2.6.24-git-v3.patch
I don't exactly know, for which version I made the patch, so I named it "-git", but it does apply with some fuzz to current 2.6.24 versions.
I changed the -v2 to -v3, just to make clear (for me and others), that this patch won't apply for earlier versions.
I didn't change the patch itself. |
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new_nOOb
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Joined: 05 Mar 2004
Posts: 280
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| Posted: Thu Feb 07, 2008 7:42 am Post subject: |
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@Berniyh i try you patch but powernow say
powernow-k8: Requested 0MHz with 0mV
powernow-k8: Requested 0MHz with 0mV
powernow-k8: invalid powernow_table
powernow-k8: Requested 0MHz with 0mV
powernow-k8: Requested 0MHz with 0mV
powernow-k8: invalid powernow_table
i add powernow-k8.vcore_list=1100,900
to the grub |
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molot
Apprentice
Joined: 26 Feb 2005
Posts: 214
Location: Warsaw, Poland
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| Posted: Thu Feb 07, 2008 7:51 am Post subject: |
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If you need support, post at least the kernel version, cpu & motherboard versions and warnings from patching process.
For now, all I can tell is "works for me, you have problem" - but you know that already ;D
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Berniyh
l33t
Joined: 07 Jun 2006
Posts: 677
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| Posted: Thu Feb 07, 2008 8:51 am Post subject: |
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| new_nOOb wrote: | @Berniyh i try you patch but powernow say
powernow-k8: Requested 0MHz with 0mV
powernow-k8: Requested 0MHz with 0mV
powernow-k8: invalid powernow_table
powernow-k8: Requested 0MHz with 0mV
powernow-k8: Requested 0MHz with 0mV
powernow-k8: invalid powernow_table
i add powernow-k8.vcore_list=1100,900
to the grub |
You have to specify powernow-k8.vcore_list and powernow-k8.freq_list. So for me it looks like this:
| Code: | | ... powernow-k8.freq_list=1600,800 powernow-k8.vcore_list=925,800 |
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new_nOOb
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Joined: 05 Mar 2004
Posts: 280
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| Posted: Thu Feb 07, 2008 9:16 am Post subject: |
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| thanks Berniyh. now work i forget freq_list |
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new_nOOb
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Joined: 05 Mar 2004
Posts: 280
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| Posted: Thu Feb 07, 2008 9:30 am Post subject: |
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but i am to stupid to add this as boot parameter
kernel /bzimage2 root=/dev/md0 ro quiet splash powernow-k8.freq_list=1800,1000 powernow-k8.vcore_list=1100,900
not working ;/ |
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Gentoo on AMD64
