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-   Maemo 5 / Fremantle (https://talk.maemo.org/forumdisplay.php?f=40)
-   -   [Announce] kernel-power stable v49 in Extras-Testing (https://talk.maemo.org/showthread.php?t=71879)

reinob 2011-09-20 11:43
Re: [Announce] kernel-power v48
 
it's not "kernel-power show" but "kernel-config show"

Hope that is (was) your only problem! :)

If not, please elaborate..

@bitrocky: you beat me :)

efeinblatt 2011-09-20 11:56
Re: [Announce] kernel-power v48
 
Yes, yes, tired fingers typed the wrong code. Nonetheless, when I try to delete kernel-power, I get the response as per my original post.

Question:
What is the difference between these two files (their function):

/etc/default/kernel_power
and
/etc/pmconfig

Still more concerned about not being able to delete.

Quote:
Originally Posted by reinob (Post 1092466)
it's not "kernel-power show" but "kernel-config show"

Hope that is (was) your only problem! :)

If not, please elaborate..

@bitrocky: you beat me :)

efeinblatt 2011-09-20 12:08
Re: [Announce] kernel-power v48
 
(I mean kernel-power - slippery fingers this morning)

Quote:
Originally Posted by efeinblatt (Post 1092476)
Yes, yes, tired fingers typed the wrong code. Nonetheless, when I try to delete kernel-power, I get the response as per my original post.

Question:
What is the difference between these two files (their function):

/etc/default/kernel_power
and
/etc/pmconfig

Still more concerned about not being able to delete.

dignified 2011-09-20 12:44
Re: [Announce] kernel-power v48
 
unexpected reboot..custom kernel config not loaded.... it is okay?

efeinblatt 2011-09-20 12:52
Re: [Announce] kernel-power v48
 
Yes, that's normal behavior if you have not created a 'default' file. However, if you experience reboots, it means the profile you're loading is not playing nicely with your phone. This happens to me with 'ideal', so I load 'lv' and have no more problems. Limits: 500 850 most of the time

dignified 2011-09-20 12:57
Re: [Announce] kernel-power v48
 
everytitime that happen.. i reboot again to load my default

efeinblatt 2011-09-20 14:22
Re: [Announce] kernel-power v48
 
Let me simplify my problem. I am unable to deinstall kernel-power.

Code:
sudo gainroot
apt-get install --reinstall -y kernel kernel-flasher
returns

Quote:
Reinstallation of kernel is not possible, it cannot be downloaded.
Reinstallation of kernel-flasher is not possible, it cannot be downloaded
When I try to do it automatically with Nokia Kernel, I get the following message:
Quote:
Error during uninstallation: Could not download Nokia Kernel. Please make sure the internet connection is working.
Yes, I am connected to the internet. Application Manager is not running. I've tried with usb connection, ac connection, and no connection. Battery is full.

reinob 2011-09-20 14:22
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by efeinblatt (Post 1092476)
Yes, yes, tired fingers typed the wrong code. Nonetheless, when I try to delete kernel-power, I get the response as per my original post.
You should be able to find a "Deinstall Kernel-Power" application in your apps menu.

As far as I know this is the only "supported" way of removing kernel-power (never tried it though). After that (possibly with a reboot involved), you can install it again.

But I still don't understand why you need to uninstall it (or reinstall it).
What exactly is the problem you have?

Quote:
Originally Posted by efeinblatt (Post 1092476)
Question:
What is the difference between these two files (their function):

/etc/default/kernel_power
and
/etc/pmconfig
The kernel-power file has the defaults that are passed to kernel-config.

The pmconfig file has parameters that are used by the maemo power management (not sure exactly how these map to kernel parameters).

They do overlap a bit, but AFAIK kernel-power is loaded after pmconfig, so it takes precedence over pmconfig.

efeinblatt 2011-09-20 14:47
Re: [Announce] kernel-power v48
 
Thanks. No particular reason to deinstall. I just like to make sure that everything is working as it should, and since I mucked around a bit, I wanted to deinstall and reinstall again. Code doesn't work and Nokia Kernel (which has replaced Deinstall Kernel-Power" in the newest download (I think) doesn't work either, so something is actually wrong.

Thanks for the explanation of the two files. I assume, then, that the 'kernel-power' file would contain any 'make default' changes I've made. Is this correct? And what if I delete it entirely? What happens then? Defaults to the original maemo power management file - pmconfig - I presume?

Quote:
Originally Posted by reinob (Post 1092550)
You should be able to find a "Deinstall Kernel-Power" application in your apps menu.

As far as I know this is the only "supported" way of removing kernel-power (never tried it though). After that (possibly with a reboot involved), you can install it again.

But I still don't understand why you need to uninstall it (or reinstall it).
What exactly is the problem you have?



The kernel-power file has the defaults that are passed to kernel-config.

The pmconfig file has parameters that are used by the maemo power management (not sure exactly how these map to kernel parameters).

They do overlap a bit, but AFAIK kernel-power is loaded after pmconfig, so it takes precedence over pmconfig.

reinob 2011-09-20 15:04
Re: [Announce] kernel-power v48
 
@efeinblatt,

kernel-config runs at every boot and loads, by default, /etc/default/kernel-power.

If you remove it, it will load the one found on /usr/share/kernel-power-settings/default.
(on that folder you have the various defaults, such as ideal, lv, etc.)

pmconfig has nothing to do with it (at least in this context). kernel-config doesn't use or touch it.

efeinblatt 2011-09-20 15:21
Re: [Announce] kernel-power v48
 
Thanks reinob, this at least clarifies the order of events for me. But I seem to remember that the kernel-power file had altered parameters in it. Is it possible that qcpufreq writes to it when 'saving'? Can't figure out how else the changes could have been made.

On the other question, any insight why a deinstall won't work?

efeinblatt 2011-09-20 16:29
Re: [Announce] kernel-power v48
 
Not so sure about this kernel-power file. It says do not edit. Make a copy if you want to customize it. So, where do the original values come from? And if you want to create a new file with, for instance, smart reflex enabled, what name would you use to save it as default?

maacruz 2011-09-20 17:09
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by efeinblatt (Post 1092549)
Let me simplify my problem. I am unable to deinstall kernel-power.

Code:
sudo gainroot
apt-get install --reinstall -y kernel kernel-flasher
returns



When I try to do it automatically with Nokia Kernel, I get the following message:


Yes, I am connected to the internet. Application Manager is not running. I've tried with usb connection, ac connection, and no connection. Battery is full.
When apt fails, just use dpkg to fix the system.
Btw, I assume you *know* what you are doing.

efeinblatt 2011-09-20 20:04
Re: [Announce] kernel-power v48
 
Thanks maacruz, but if you read through my earlier posts today you'll see that I've done that and you'll see what message I get back:

Reinstallation of kernel is not possible, it cannot be downloaded.
Reinstallation of kernel-flasher is not possible, it cannot be downloaded

efeinblatt 2011-09-20 20:06
Re: [Announce] kernel-power v48
 
Kind of know what I'm doing, but I have to admit that I don't know what dpkg does. Can you run me through this? Thanks.

reinob 2011-09-20 21:10
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by efeinblatt (Post 1092649)
Not so sure about this kernel-power file. It says do not edit. Make a copy if you want to customize it. So, where do the original values come from? And if you want to create a new file with, for instance, smart reflex enabled, what name would you use to save it as default?
The default config files come with the kernel-settings package (or whatever its name is).

You could always disregard the warning and edit them, but it doesn't hurt just copying the one closest to what you want, rename it to whatever you like (e.g. "optimized" :), and edit it as you like.

The best is if you then put it in the /etc/default/.. folder, so it will be loaded automatically without having to touch any other script.

I'm not sure where/how qcpufreq stores its defaults. I suggest removing that package, as normally you set your parameters once and then forget about it..

BTW, no idea about deinstalling. I guess the bulletproof method is to flash the kernel (and *only* the kernel). But this will not help with reinstalling, as the package system will still think that KP48 is installed..

dignified 2011-09-21 02:07
Re: [Announce] kernel-power v48
 
hey i have a question..im install android.. when i reboot theres have 2 option.. maemo omap and nitdroid.. when i choose maemo omap its set to default the question is how to set again to kernel 48.. beacause i instaled kernel 48 but it didnt load..

werks 2011-09-21 03:02
Re: [Announce] kernel-power v48
 
has anyone had an issue where the min limit goes back to 125 after a phone call?

im using the ondemand govenor and have 125 and 250 in the avoid-frequencies file.

i dont think it happened on kp47.

geneven 2011-09-21 03:20
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by werks (Post 1092989)
has anyone had an issue where the min limit goes back to 125 after a phone call?

im using the ondemand govenor and have 125 and 250 in the avoid-frequencies file.

i dont think it happened on kp47.
From the overclocking section of the Wiki:

the telephone app is closed-source and broken. After a phone call it sets the maximum to 600 Mhz and the minimum to 250 MHz (or 125 MHz if available) irrespective of what you have set before. The are some workarounds in the Kernel-power kernel.

reinob 2011-09-21 08:09
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by werks (Post 1092989)
has anyone had an issue where the min limit goes back to 125 after a phone call?

im using the ondemand govenor and have 125 and 250 in the avoid-frequencies file.

i dont think it happened on kp47.
We've discussed this issue just a few pages ago in this thread, although in the end it wasn't clear even if the problem existed at all.

Can you "prove" that your CPU is actually going down to 125Mhz, or is that merely the output of "kernel-config show".

If the frequency is being avoided, it doesn't matter if the minimum is set to that frequency. Check with e.g. conky and see how low the CPU goes with nothing else running (or use powertop if you know how to).

AFAIK most people avoid 125Mhz but allow 250Mhz, which doesn't seem to harm. Why do you need to avoid both 125 and 250?

Estel 2011-09-21 08:41
Re: [Announce] kernel-power v48
 
Using 500 mhz as minimum is more "productive" in terms of powersaving and avoiding wear on CPU (although, the second effect is probably very little). When You're using 500 mhz as min, Your CPU spend much more time @ 0 mhz during idle (every second, it's sitting ~2x longer at 0 mhz, after doing task @ 500 mhz), so you got additional benefit of saving on power leakage.

so, probably it's not about harm, but additional benefit ;) It's also possible, that he doesn't have idea of power leakage etc, just like to have 500 mhz as starting point ;)

michaaa62 2011-09-21 08:53
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by efeinblatt (Post 1092549)
Let me simplify my problem. I am unable to deinstall kernel-power.

Code:
sudo gainroot
apt-get install --reinstall -y kernel kernel-flasher
returns



When I try to do it automatically with Nokia Kernel, I get the following message:


Yes, I am connected to the internet. Application Manager is not running. I've tried with usb connection, ac connection, and no connection. Battery is full.
Did you disable some of the original repos???
Quote:
[1|root@Nokia-N900|~]apt-get install --reinstall -dy kernel kernel-flasher
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 upgraded, 0 newly installed, 2 reinstalled, 0 to remove and 5 not upgraded.
Need to get 1889kB/2046kB of archives.
After this operation, 0B of additional disk space will be used.
Get:1 https://downloads.maemo.nokia.com ./ kernel 2.6.28-20103103+0m5 [1889kB]
Fetched 1889kB in 30s (61,4kB/s)
Download complete and in download only mode

reinob 2011-09-21 09:07
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by Estel (Post 1093094)
Using 500 mhz as minimum is more "productive" in terms of powersaving and avoiding wear on CPU (although, the second effect is probably very little). When You're using 500 mhz as min, Your CPU spend much more time @ 0 mhz during idle (every second, it's sitting ~2x longer at 0 mhz, after doing task @ 500 mhz), so you got additional benefit of saving on power leakage.

so, probably it's not about harm, but additional benefit ;) It's also possible, that he doesn't have idea of power leakage etc, just like to have 500 mhz as starting point ;)
That's probably true, but also probably would depend heavily on what exactly is run by the N900 when in idle.

One could also argue that fixing the frequency to, say, 600Mhz (or 900Mhz or whatever) would also provide a benefit (race-to-idle and so), so the phone would only alternate between 0 and 600.

On the other hand, there may be background tasks (e-mail sync, etc.) which hopefully can manage to do their thing without forcing the CPU to jump to higher frequencies (e.g. do the e-mail check at 250Mhz), in which case you would save a bit of power, especially in combination with IGNORE_NICE_LOAD.

When I have some time (lol) I will test with powertop what happens when I set the minimum to 600Mhz instead of 250Mhz and keep the phone idle with WLAN (or EDGE, I normally don't use 3G) and Nokia Messaging running (that's my usual "idle" situation).

Estel 2011-09-21 10:53
Re: [Announce] kernel-power v48
 
Nice idea, reinob (tests). As for locking to (for example) 900 mhz, I would not recommend this, due it being "overclocked" (500 mhz is standard frequency). It may be just placebo, but I would not like to "stress" CPU with higher voltage and frequency for 100% of running time.

As for things that doesn't force frequency jump, it's a matter of fact, that on 250 mhz it take 2x more time than on 500 mhz (usually - we're talking about things that doesn't involve high I/O from disk etc). so you benefit from more idle time = no leakage during 0mhz period. At the same time, een on 500 mhz CPu isn't overclocked (600 mhz is stock max frequency, but it *is* factory overclocked, according to CPU specifications).

/Estel

TMavica 2011-09-21 11:00
Re: [Announce] kernel-power v48
 
installed v49, all is fine
no need to pin

freemangordon 2011-09-21 11:44
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by TMavica (Post 1093158)
installed v49, all is fine
no need to pin
Where did you get v49 from?

freemangordon 2011-09-21 12:09
Re: [Announce] kernel-power v48
 
@Pali - when do you plan to release new KP version as was agreed?

pali 2011-09-21 12:12
Re: [Announce] kernel-power v48
 
UNTESTED PRE v49 is on http://atrey.karlin.mff.cuni.cz/~pali/

werks 2011-09-21 12:12
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by reinob (Post 1093072)
We've discussed this issue just a few pages ago in this thread, although in the end it wasn't clear even if the problem existed at all.

Can you "prove" that your CPU is actually going down to 125Mhz, or is that merely the output of "kernel-config show".

If the frequency is being avoided, it doesn't matter if the minimum is set to that frequency. Check with e.g. conky and see how low the CPU goes with nothing else running (or use powertop if you know how to).

AFAIK most people avoid 125Mhz but allow 250Mhz, which doesn't seem to harm. Why do you need to avoid both 125 and 250?
your right i cant prove it, just from kernel-config show.
thanks man.

TMavica 2011-09-21 12:32
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by freemangordon (Post 1093185)
Where did you get v49 from?
In your friend web site, LOL
I saw it and install directly, no need thinking

efeinblatt 2011-09-21 14:23
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by michaaa62 (Post 1093101)
Did you disable some of the original repos???
All repos are enabled, so the problem isn't there. Just a thought....is it necessary to uninstall CSSU BEFORE trying to uninstall kernel-power?

efeinblatt 2011-09-21 14:26
Re: [Announce] kernel-power v48
 
Conky also indicates that the frequency has changed from my 500mhz lower limits, because after a phone call it cycles between 250 and 805

fahadj2003 2011-09-21 14:31
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by pali (Post 1093206)
whats osso wlan and recoveryboot?? can i get a changelog?

pali 2011-09-21 15:44
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by fahadj2003 (Post 1093286)
whats osso wlan and recoveryboot?? can i get a changelog?
osso-wlan: http://talk.maemo.org/showthread.php...31#post1073631
recovery-boot: http://talk.maemo.org/showthread.php?t=72726

it has nothing with kernel-power v49

TMavica 2011-09-21 16:57
Re: [Announce] kernel-power v48
 
@pali

bq2700 no working anymore?

maacruz 2011-09-21 17:05
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by efeinblatt (Post 1093279)
All repos are enabled, so the problem isn't there. Just a thought....is it necessary to uninstall CSSU BEFORE trying to uninstall kernel-power?
No, CSSU is independent from the kernel.

Quote:
Originally Posted by efeinblatt (Post 1092794)
Thanks maacruz, but if you read through my earlier posts today you'll see that I've done that and you'll see what message I get back:

Reinstallation of kernel is not possible, it cannot be downloaded.
Reinstallation of kernel-flasher is not possible, it cannot be downloaded
No, you have used apt-get, not dpkg. dpkg doesn't try to download anything, you must provide the package in the local filesystem, and for this same reason won't try to satisfy any dependency.
apt is a high level CLI to package management, while dpkg is the low level interface used by apt, akin to rpm.
But since you don't know what dpkg is, I warn you that using dpkg not knowing *exactly* what you are doing is dangerous.

woody14619 2011-09-21 17:18
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by Estel (Post 1093154)
Nice idea, reinob (tests).
Titan and friends did extensive testing when developing the initial over-clock kernels. The results were a pretty bell-curve that peeked efficiency wise very close to 500Mhz. (It's almost like the designed it to go that fast! :o ) If you do a proper thread search you may even find the chart laying around still.

I've had mine set to 500 as the base for some time. There were also other cute tricks they tried to "trick" the phone app (changing the kernel speed to 605 vs 600, etc). Sadly, the only real "solution" seemed to be to re-load kernel config after a call hang-up. There was a hack put in to Titan's kernels to do that as I recall, but I don't know if it's still there? I'd assumed Pali just took the bundle from Titan's stuff as a work base, but that may not be a good assumption.

pali 2011-09-21 19:28
Re: [Announce] kernel-power v48
 
Quote:
Originally Posted by TMavica (Post 1093360)
@pali

bq2700 no working anymore?
if you stop bme, you can modprobe bq27x00_battery driver in v49. In v48 is not possible to load bq driver.

maacruz 2011-09-21 20:16
Re: [Announce] kernel-power v49
 
kp49 has ramzswap, nice :D
Let's see how that works
@pali:
Just a question, have you modified the swap notify patch due to the extensive modifications Nokia did to the swap code, or is it the original swap notify patch.

colin.stephane 2011-09-21 21:24
Re: [Announce] kernel-power v49
 
Quote:
Originally Posted by maacruz (Post 1093453)
kp49 has ramzswap, nice :D
Let's see how that works
@pali:
Just a question, have you modified the swap notify patch due to the extensive modifications Nokia did to the swap code, or is it the original swap notify patch.
Hi,

On this part, the patch come from freemangordon and it is 'patch_swap_notify_core_support_2_2.6.28.diff' from here : Compcache Post #1

Hope it help ...

A++


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