Version 1.4.5 is out as a beta. Please test and report.
http://code.google.com/p/xnu-speedstep

• "Error getting PState array from ACPI" - if you get this error with older versions, this new version will try to create a pstate table for you based on some heuristics. It is not optimal, but will give you a headstart. Later you can fine-tune the pstate table yourself.
• Info.plist has a new key "TargetCPULoad" currently set to 30%. Change it to whatever you want to be the default.
• Should also fix the incorrect (high or -ve) cpu frequency problem.

The module failed to load on my machine. Confirmed the same behavior in both xnu-dev's most recent beta (2c) and Vanilla 9.5. Attached is the dump generated by the Vanilla kernel. Vitals in the sig. Thanks again for your great work on this project!

Edit: add sysctl dump

same problem here.



System:
OSX 10.5.5
Gigabyte GA-P35-DS3
Intel Core 2 Duo E8400
nVidia GeForce 9600 GT
4 GB Ram
SAMSUNG HD501LJ (SATA, 500GB)

Hi Mercurysquad,

Has the memory Leak issue been fixed ?

Does this kext use ACPI_SMC_PlatformPlugin.kext to get the pstates ?

Regards
aliasa

My system hangs during the installation I install using terminal. After seemingly successful sudo copy of the file, the system just hangs ... and there's nothing I can do except hard reboot. Booting in single user mode then shows the file is not there

Will update as it goes when I can install it!

Thanks for the release though. Great work.

Finally installed (although still unsucessfully, using kext helper, machine still hangs after copying the kext). After repairing permissions in single mode, get a kernel panic.

aaaaaaaaaaaaa .....

trying to fix the panic. hold on guys.

Works fine for me here.

i just installed it and got kernel panic !


Model: HP Compaq V3706
CPU: T5450 1.66Ghz
Chipset:Intel PM965
OSX86 : iDeneb 1.3 10.5.5
Kernel : vanilla 9.5

update:
with Vanilla 9.5 the kext works!

The earlier one did,so this one should also work.

I installed the IntelEnhancedSpeedStep.kext and it installed fine. How do I check to see if it is working and doing what it is suppose to do. I was thinking the speedstep.app would have some gui function when I try to run it...nothing pops up or nothing happens. Am I suppose to only install the kext or not run the app or do I install the kext and run the app. Any help will be appreciated. Thanks.


PS- I installed version 1.4.0 since many ppl here are reporting problems with 1.4.5.

If the kext is installed it is probably doing its job quietly in the background. You don't need to start any app.

To confirm, open Terminal and type:

sysctl -a | grep throttle

You should be able to see the current frequency and voltage, the list of available frequencies and voltages, the target cpu load, and whether auto throttle is active (kern.cputhrottle_auto: 1).

When I type in the sysctl -a | grep throttle in the terminal, I get the following error: "kern.exec: unknown type returned" Does this mean the kext did not install properly or do I have a non compatible kernel runnning? Thank for your help.

Hi,

Has the KP been fixed ?or was this issue with old kernel only(kernels older than 9.5) ?

The kext is compatible with all kernels. If you only get that line and don't get anything else then that means the kext is not working properly. In that case you should edit the kext's Info.plist file and set DebugMessages to true, then type sudo touch /System/Library/Extensions and reboot. After rebooting type sudo dmesg | grep Intel to see a list of debug messages. Paste those here.


Not yet, I got busy with the Voodoo kernel and other things .. once Voodoo is released I'll work on this.

Thanks man,no problems.

You've really inspired me to read "Mac OS X Internals By Amit Singh".I'll just grap a copy and start reading it.Chapter 10 would be of more interest to me coz of IOKit.
Anyways thanks for everything.

Will this work with a P-M ? i tried superhai but i gave me problems

Thanks for your help. I made the changes you asked and below is the output. Most of the errors point to "Please create your P-State table manually"

IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources
IntelEnhancedSpeedStep: INFO Initializing version 1.4.0 © Prashant Vaibhav <mercurysquad@yahoo.com>
IntelEnhancedSpeedStep: DBG FSB = 333 MHz
IntelEnhancedSpeedStep: DBG Probing for Intel processor...
IntelEnhancedSpeedStep: DBG Supported Intel processor found on your system
IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources
IntelEnhancedSpeedStep: INFO Initializing version 1.4.0 © Prashant Vaibhav <mercurysquad@yahoo.com>
IntelEnhancedSpeedStep: DBG FSB = 333 MHz
IntelEnhancedSpeedStep: DBG Probing for Intel processor...
IntelEnhancedSpeedStep: DBG Supported Intel processor found on your system
IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources
IntelEnhancedSpeedStep: INFO Initializing version 1.4.0 © Prashant Vaibhav <mercurysquad@yahoo.com>
IntelEnhancedSpeedStep: DBG FSB = 333 MHz
IntelEnhancedSpeedStep: DBG Probing for Intel processor...
IntelEnhancedSpeedStep: DBG Supported Intel processor found on your system
IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources
IntelEnhancedSpeedStep: INFO Initializing version 1.4.0 © Prashant Vaibhav <mercurysquad@yahoo.com>
IntelEnhancedSpeedStep: DBG FSB = 333 MHz
IntelEnhancedSpeedStep: DBG Probing for Intel processor...
IntelEnhancedSpeedStep: DBG Supported Intel processor found on your system
IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources
IntelEnhancedSpeedStep: INFO Initializing version 1.4.0 © Prashant Vaibhav <mercurysquad@yahoo.com>
IntelEnhancedSpeedStep: DBG FSB = 333 MHz
IntelEnhancedSpeedStep: DBG Probing for Intel processor...
IntelEnhancedSpeedStep: DBG Supported Intel processor found on your system
IntelEnhancedSpeedStep: DBG Processor Family 6, Model 15
IntelEnhancedSpeedStep: DBG Starting
IntelEnhancedSpeedStep: DBG On your processor, voltages can be changed in 16 mV steps
IntelEnhancedSpeedStep: DBG Using data from CPU0
IntelEnhancedSpeedStep: WARN There was an error while getting PState array from ACPI. Please create your P-State table manually.
IntelEnhancedSpeedStep: DBG Freeing driver resources

Mercurysquad,
I was wondering that if I have a correct DSDT will I still get "Error getting Pstate array from ACPI" ?(Assuming i use version 1.4.4 of this kext)

Regards
Aliasa

Yes mine is heavily tested for pentium M. Superhai's kext has problems.


OK. This was fixed in 1.4.5 but gives a kernel panic on most machine. So please wait until I fix and upload a newer version in a few days.

It works GREAT for me! Fantastic!

iDeneb 10.5.5, Voodoo-RC1 kernel, and Pentium-M750 SSE2, works with all 8 PStates(800~1866 MHz)

GMA900 problem also solved, and now I have a real MacBook

Mercurysquad,

from where does this kext get the P-states from ?


Thanks.

Why dont you and SuperHai work together on a Singel app

Yeah it would be great !!!

I have tried, but let me explain:

Superhai is free to fork the code and make his additions, and he did. But his version is too different now and strays from my philosophy as well as practicality. My idea is to build a kext which just works and the user doesn't need to configure much. Superhai's kext has a LOT of features and a GUI, BUT he removed many features of my kext (which in my opinion is a step backward - for example you can no longer change settings from the Terminal). Also, my main priority is Pentium M processors, but Superhai's kext doesn't work well on Pentium M (and other CPUs which need clock re-calibration) because the kext makes too many assumptions.

You can apply the same logic and say Superhai could work on my kext, but in an open-source community it doesn't really matter. Everyone has their own agenda, for me Pentium M is top priority, for Superhai, support for newer CPUs is higher priority. He seems to consistently ignore Pentium M and the most important reason I made my kext: clock re-calibration. I have suggested bugfixes and changes to Superhai but last I checked, the kext didn't contain those fixes. I don't know about the current version as the kext always crashes on my system.

Since my kext is 'good enough' and does the job for me and most people, I only have to fix bugs and add some workarounds instead of adding more and more features. So I decided to keep my project active.

In short: mine is a coservative, 'just-does-the-job' version of the original kext, and I prefer to keep control of it.

Thanks for the explanation well your speedstep workes prefectly on My P-m So i'm happy

Sorry for this question,got the answer myself,its ACPI.Please correct me if I am wrong.
If this kext(1.4.5) does not get it from there,it uses a lookup table right ?

Is it possible to use SMC plugin to get the P-states ? Like what Surehai's kext does ?
Also does this kext gather Tjmax for getting the max allowed core CPU temperature ?If this can be done,the
runaway issue can be resolved.I mean with high CPU load, Voltage will be incread up,
freq will also be stepped up but after sometime the temp will rise,if the long pending
task is not completed,the CPU temp will remain high.
So if Temp is monitored,we can use this value to reduce/step down the freq and/or voltage
after sometime
(even though it might slow the processing a bit),but this will prevent CPU from overheating[Tj nearly equal to Tjmax]
Better/safe option would be to have the condition:
Tj < (Tjmax - x),
where x is say tolerance coz at Tjmax the cpu will be automatically shutdown by thermstrip to prevent damage to the die.


Please let me your concerns.


Regards
aliasa.

KP upon installation and with subsequent reboot with 1.4.5
Specs below

hi mercurysquad, I have just installed the Speedstep.kext version 1.4.5 with kexthelper and immediately get a kernel panic (10.5.5 iDeneb voodoo kernel running on a pentium m + gma900 based notebook) and the only way to boot the system is to boot in single user mode and delete the kext.

in single user mode I can load the kext without any problem, what I can see and think it is wrong are the factoryvolts which are all the same:


what do you suggest? please help!!

bye and thanks for your great work!!


EDIT: last thing, is it normal that in the Info.plist file I can see <key>PStateTableDisabled</key> ?? Why it says it is disabled?

EHILA'!!!!! I just modified the Info.plist file changing this:


into this:


then re-installed the kext with KextHelper and now I don't get the kernel panic anymore!!!! Why is it set to "disable" by default??

now it says:



...and if I run: sysctl kern | grep throttle




....and the cpu scaling seems to work automatically, as if I run some apps and try the sysctl kern | grep throttle again, I can see the "curfreq" value increasing...... so it seems that everything is working now just after changing the PStateTable key!!!!!

the only problem is that if I boot the laptop on battery, when I get to the desktop it doesn't work, it is freezed, and touchpad/keyboards don't work.. don't know why, what you think? While if I boot the system connected to the power, then I disconnect it after I get to the desktop, then it works on battery... strange... What changes if I boot with the power cord connected or not? Is the system using different kexts??

finally, can you confirm this entry is correct in my Info.plist and must be set to -1?


and can you tell me what does this entry mean/do?



thanks!!

I've never seen at 1733, I think there's something wrong, my E8400 frequency are not so low: 800 - 1067 - 1333 - 1733 as the maximum frequency.

Is that the CPU frequency?

Maybe is because I did the same edit of moly82 on Info.plist


I removed the disabled on Table!
Should I set the CPU frequency manually?

that table is perfect for me as I have a pentium m 1.73 GHz but probably you need different values.... why you did modify the files as I did? were you getting kernel panics? by the way yes the first value in the table is the frequency, and the second value is the relevant voltage for the that frequency value..

bye!

My lower speedstep frequency I think it's 2 GHz and it gets higher with the multiplyer 333x6=2 Ghz 333x7=2,3 GHZ 333x8=2,6 GHz 333x9=3 GHz

So is that konsole info false? I think, yes...

If I leave the TableDisabled osx won't boot.

yes in your case I think they are not real, but in mine I think (hope ) they are true..
I hope mercurysquad will come back soon so he can clarify.....

Any news?

hello,

this is what i get from terminal:

sysctl kern | grep throttle
kern.exec: unknown type returned
kern.cputhrottle_curfreq: 1067
kern.cputhrottle_curvolt: 1068
kern.cputhrottle_freqs: 800 1067 1333 1733
kern.cputhrottle_factoryvolts: 716 780 860 1084
kern.cputhrottle_ctl: 1559
kern.cputhrottle_auto: 1
kern.cputhrottle_targetload: 30

even though it says that my cpu can be set to 800, it never gets there. is there any way to force the cpu to be set to 800?? would this require setting custom values in the PStateTable??

thx

Hi MercurySquad, thanks very much for all the great work
I just come to delete the intelenhancedspeedstep.kext and i'm surpised to see the autothrottle still working as if the kext was still loaded (i've repaired permissions and rebooted, and verified the kext is trully not loaded). Idon't have neither genericpuetc... from Superhai. Note that the speedstep app is still working.
I also noticed that when the kext was loaded, the CPUthrottle i could see in sysctl -a | grep throttle
was not the same as in plist from kext...

Here is the sysctl -a | grep throttle when the kext is not loaded (it is the same when the kext is loaded) :



Is it because i patched the dsdt ? Does this mean i don't need any kext like intelenhancedetc... or GenericCPUetc... ?

Thx,
Jim

did you remove the extensions cache? a part from looking in the extensions folder, did you check if the kext is really not loaded with kexstat? kexstat | grep Intel from the terminal..

bye

Yes i did, but i found also, following your post Moly, that the Pstate were "disabled" in the plist, so when i insert
,
I now can see the plist value in speedstep monitor and in sysctl kern | grep throttle, no more problems
So I have to find the good values to insert in plist now because the lowest one doesn't seem to work
(even in custom clock)... or to keep the default one without the kext loaded...
Is there a data base where we can find good Pstats with CPU ref ?

[Edit] i have a C2duo T5750 2Ghz FSB667

Thx bye

The PStateTableDisabled is disabled because it contains settings for Pentium M 740 (1.73 GHz) and it is not applicable to other CPUs. So before renaming it, make sure you put YOUR cpu's pstate table.

Also, it is NOT POSSIBLE to get the sysctl output if the kext is not loaded. The kext must be loaded from the Extensions.mkext, from /Extra or from other places (like /Library/Startup/SpeedStep in iATKOS 5i).

Ok thx for reply,
i'm using iATKOS 5i...

hello,

can somebody please tell me or point me in the right direction how to create custom Ptables?

thx

I am using Speedstep on a Dell Inspiron 6000 with a single core Pentium M, running Leo 10.5.2. I physically overclocked the cpu when I first bought it by inserting a jumper in the cpu socket, which upped the FSB from 400 MHz to 533 MHz. This upped the cpu from 1.6 GHz to 2.13 GHz. By doing this, I have always had to be conscious of temperatures.

The Speedstep 1.4.5 kext has worked perfectly, along with the Speedstep app running in the start bar. When I first installed leo, the cpu ran constantly at 2.13 GHz and the fan also ran constantly at its highest speed. Temperatures ran at about 45-48 C when idling. Since installing Speedstep 1.4.5, my cpu is running at 1067 GHz when idle, and the temp is about 35-38C. That is as good as when I run Vista with the native Intel drivers.

Thank you, thank you, thank you.

i dont known if it's supported but P4HT Isn't recongized as an Intel CPU by the KEXT

1.4.5 crashes reading pstates from ACPI on startup

1.4.0 loads pstates without issue and has been rock solid stable

running C2D T7400 'Merom' 2.16ghz

i will soon test undervolting on 1.4.0 with custom table. i tried earlier but got crashes because i didn't step the voltage in 4mv increments.

hi mercurysquad, one question.

my specs are in the signature.. I am using your kext 1.4.5 and everything is working after modifing the plist file in order the enable the PState table... when I am using the laptop connected to the power.... the CPU scales and so on, but when I am on battery the laptop does not start... it freezes at boot without errors... what could it be? if I unload the speedstep kext then I can boot the laptop on battery but speedstep does not work..

thanks in advancve.. bye!