 Powernowd Cpu Frequency And Vcore Scaling Daemon, ... running on the pxa27x-based Zaurii |
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 Jun 9 2006, 09:14 AM
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#1
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195  |
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Jun 9 2006, 11:41 AM
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#2
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 Group: Members Posts: 29 Joined: 23-August 05 From: Germany Member No.: 7,931 |
QUOTE(albertr @ Jun 9 2006, 07:14 PM) sounds good, I would love to try this, unfortunalety the download-link for the ipk on your page doesn't work (I have no crosscompiling-env so I can't compile it myself..). seiichiro0185 |
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Jun 9 2006, 11:48 AM
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#3
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195 |
Sorry, link is fixed now.
-albertr |
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Jun 9 2006, 01:14 PM
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#4
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Group: Members Posts: 29 Joined: 23-August 05 From: Germany Member No.: 7,931 |
dl worked now, install went fine, and I linked the script to the apm-dirs like you said on the page
my first test looks very good. scaling works good as far as i can see (I looked at /proc/zaurus/CCCR when idle and under load, and it changed  )suspend and resume works ok, and the scaling works after suspend/resume the zaurus now feels a little "snappier" (it seems programms load a little faster, but I have not timed the loading with/without powernowd so far) all in all it seems to be a usefull piece of software, especially as one should also experience longer battery lifetime (hopefully).. thanks for this! seiichiro0185 PS.: I will use this for now and report back if something goes wrong. I also will make some tests on battery lifetime and application loading time with and without powernowd if I have some spare time. |
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Jun 9 2006, 02:53 PM
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#5
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195 |
Battery life should improve quite a bit. What /etc/powernowd.conf file do you use?
-albertr |
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Jun 9 2006, 11:09 PM
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#6
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Group: Members Posts: 29 Joined: 23-August 05 From: Germany Member No.: 7,931 |
QUOTE(albertr @ Jun 10 2006, 12:53 AM) Battery life should improve quite a bit. What /etc/powernowd.conf file do you use? -albertr  I'm using the undervolted one from your website ATM. Right now the zaurus is charging, after that's complete I will start some tests. seiichiro0185 |
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Jun 9 2006, 11:41 PM
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#7
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Group: Members Posts: 23 Joined: 29-September 04 Member No.: 4,816 |
Will this work on an SL6000? I think it has a PXA CPU.
QUOTE(albertr @ Jun 9 2006, 01:14 PM)
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Jun 10 2006, 12:03 AM
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#8
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 Group: Members Posts: 1,213 Joined: 9-June 05 From: Gobi Desert, Mongolia Member No.: 7,306 |
checking it out now, btw how do you apply patches? And this will work with just the regular cacko install correct? I took a quick peek at the patches, looks like the cacko kernel wont need those patches, of course I could be wrong...
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Jun 10 2006, 03:48 AM
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#9
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195 |
I think cacko already has these patches, also tetsu kernel has them, and possibly old pre-2.6 kernel pdaXrom. It would work only on pxa270-based Zaurii, i.e. C1000/3x00. The easy way to check if you kernel has them already - just take a look if there's /proc/zaurus/CCCR and /proc/zaurus/VCORE exist.
Also, I completely forgot that if you use root account and don't have sudo installed, then edit /etc/rc.d/init.d/powernowd script and change the first line from: CODE #!sudo /bin/sh to: CODE #!bin/sh If you run as a non-root user, you need to have sudo installed. -albertr |
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Jun 10 2006, 09:48 AM
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#10
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Group: Members Posts: 1,213 Joined: 9-June 05 From: Gobi Desert, Mongolia Member No.: 7,306 |
now for the symlinking, actually I just created two scripts, one in suspend and one in resume, that just suspend and resume the daemon, this would be appropriate as well, correct?
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Jun 10 2006, 10:05 AM
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#11
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195 |
For the script examples, please take a look at the ipk.
-albertr |
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 Jun 24 2006, 08:23 AM
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#12
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Group: Members Posts: 69 Joined: 16-May 06 From: France, Metz Member No.: 9,882 |
Hi !
Powernowd does not work as expected on my Cacko 1.23. The reason is that most of the processes are niced to '10' (why ?!). So three solutions: - launch powernowd with '-n' - or modify the code to take into account the processes niced at 10 - or find a way to 'denice' the processes launched by qtopia. Cheers, Ludo. PS: One time my keyboard freezed just before suspend. Needed a reset. |
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Jun 24 2006, 11:56 AM
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#13
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Group: Members Posts: 535 Joined: 7-March 04 Member No.: 2,195 |
So if you run powernowd with "-n" option, does it work?
As far us suspend goes, did you kill powernowd BEFORE suspending? -albertr |
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Jun 24 2006, 06:10 PM
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#14
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Group: Members Posts: 1,213 Joined: 9-June 05 From: Gobi Desert, Mongolia Member No.: 7,306 |
I think I will retry with stock+tetsu this time.
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Jun 25 2006, 12:41 AM
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#15
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Group: Members Posts: 69 Joined: 16-May 06 From: France, Metz Member No.: 9,882 |
QUOTE(albertr @ Jun 24 2006, 09:56 PM) So if you run powernowd with "-n" option, does it work? Yes but real niced processes (at 20), are taken into account. QUOTE As far us suspend goes, did you kill powernowd BEFORE suspending? Yes I used you ipk. Cheers, Ludo. |
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