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Poll: Do you think its possible to overclock the N900?!
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Do you think its possible to overclock the N900?!

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Ulrik is offline Ulrik
2010-04-18 , 15:26
Posts: 42 | Thanked: 11 times | Joined on Nov 2009 @ Denmark
#3011
Originally Posted by Ulrik View Post
Just a question.

I am using a ultra low voltage kernel from Lehto running 800 MHz. I think I am experiencing that it uses more battery power (when using the N900 like web browsing) than the standard 600 MHz kernel with higher voltage. Can that be correct???
Should it not approximately use the same amount of battery power???
Anyone? Please
 
slipkornsaad is offline slipkornsaad
2010-04-18 , 15:28
Posts: 53 | Thanked: 20 times | Joined on Feb 2010
#3012
Originally Posted by AlMehdi View Post
Do you have rootsh installed? If not install it.
Of course, i think something's going wrong with creation of some directories...i've just go back to stock kernel, i'll install letho's one, till CpufreqUI will be "ready" (PR 1.2).

Everything was fine with previous titan kernels, till 24/25 versions and this power-kernel-settings part...

Before installing letho's : 250mhz / 375mhz / 500mhz / 800mhz / ((1000mhz)) / DSP: 90mhz / 180mhz / 360mhz/ 400mhz / 460mhz i just want to make sure : can i set min freq to 500 and max to 900?

Thanks

*****************

EDIT : I reinstall it, and magically, i have my settings back (500 <-> 900Mhz) !! i it keeped my settings (in the /usr/share/kernel-power-settings folder)
Last edited by slipkornsaad; 2010-04-18 at 15:52.
 
vjs is offline vjs
2010-04-18 , 15:30
Posts: 7 | Thanked: 3 times | Joined on Apr 2010
#3013
My current settings for the cold Finnish climate, note that these voltage settings go far further than XLV kernel. 1GHz has been tested that it won't work with voltage 48. 54 however is stable. Rest of voltages still need fine tuning, but posting this now since tuning is bound to reboot the device after voltage limit is passed^H^H^Hfound. Kernel is Titan's v25.

Code:
echo "30 15 25 30 33 38 45 45 48 48 54 54 54 60 60" >/sys/power/vdd1_opps_vsel
echo 0 >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/avoid_frequencies
echo 125000 >/sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
echo 1000000 >/sys/devices/system/cpu/cpu0/cpufreq/scaling_max_freq
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
echo 99 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/up_threshold
# Not sure if this has any effect .. (it has, 5M caused mediaplayer to skip like hell)
echo 150000 > /sys/devices/system/cpu/cpu0/cpufreq/ondemand/sampling_rate
echo 1 >/sys/devices/system/cpu/cpu0/cpufreq/ondemand/ignore_nice_load

# Renice all those background processes that are running on idle -> no powerup for these.
renice +1 `pidof hildon-status-menu` `pidof hildon-home` `pidof hildon-desktop` `pidof BatteryGraph\
d` `pidof intellisyncd`
125MHz speed is in use, and IMHO I think disabling it is counter productive for battery endurance because voltage needed for it is below anything else. If you renice those background processes, it won't raise the cpu frequency. (And no, I haven't noticed any slowdowns in UI use in result of that)

Code:
# cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state
1150000 0
1100000 0
1000000 114970
950000 1032
900000 257
850000 1050
805000 1428
750000 895
700000 328
600000 8283
550000 978
500000 296393                                                                                       
250000 12083                                                                                        
125000 6946135
Above is 21h 40 min uptime statistics. 1GHz speed is actual use or calculating 1M pi digits to verify that the device is stable. It very rarely jumps to 1GHz on idle (maybe still some processes left to renice).

Althought I am pretty satisfied with the results, does anyone know any other tweaks for further improvement?
Last edited by vjs; 2010-04-19 at 05:48.
 
UNderworld is offline UNderworld
2010-04-18 , 15:31
Posts: 362 | Thanked: 113 times | Joined on Feb 2010
#3014
hi, just uninstalled all my previous kernels.. installed maemo25
I'm trying the 1st command from the wiki
/usr/sbin/kernel-load /usr/share/kernel-power-settings/ideal
and I got this:

/usr/sbin/kernel-load: not found

uname -r gives the right info

please can someone tell me what freq the power-flasher runs? its ranging from 250-900 at the moment without doing anyting to it
 
nokian-series is offline nokian-series
2010-04-18 , 15:57
Posts: 169 | Thanked: 41 times | Joined on Apr 2010 @ Portugal
#3015
Hi there
You can use an app called "Cute Explorer", then you can go to file system.
The easy way, for me, since i use windows, is:
Over SSH with WinSCP.

Hope you can do it

Originally Posted by UNderworld View Post
hi, how do i get to home/user??
 

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slipkornsaad is offline slipkornsaad
2010-04-18 , 15:57
Posts: 53 | Thanked: 20 times | Joined on Feb 2010
#3016
Originally Posted by UNderworld View Post
hi, just uninstalled all my previous kernels.. installed maemo25
I'm trying the 1st command from the wiki
/usr/sbin/kernel-load /usr/share/kernel-power-settings/ideal
and I got this:

/usr/sbin/kernel-load: not found

uname -r gives the right info

please can someone tell me what freq the power-flasher runs? its ranging from 250-900 at the moment without doing anyting to it
Wich kernel did you run before that? in my case it keeped all settings in /usr/share/kernel-power-settings folder
 
AlMehdi is offline AlMehdi
2010-04-18 , 15:58
Posts: 1,751 | Thanked: 844 times | Joined on Feb 2010 @ Sweden
#3017
Originally Posted by UNderworld View Post
hi, just uninstalled all my previous kernels.. installed maemo25
I'm trying the 1st command from the wiki
/usr/sbin/kernel-load /usr/share/kernel-power-settings/ideal
and I got this:

/usr/sbin/kernel-load: not found

uname -r gives the right info

please can someone tell me what freq the power-flasher runs? its ranging from 250-900 at the moment without doing anyting to it
Have you rebooted?
 
oddish2211 is offline oddish2211
2010-04-18 , 16:07
Posts: 25 | Thanked: 4 times | Joined on Mar 2010
#3018
i still cant get my kernel to have 125MHz as a minimum. i've made my own text file according to the overclocking wiki.
 
UNderworld is offline UNderworld
2010-04-18 , 16:08
Posts: 362 | Thanked: 113 times | Joined on Feb 2010
#3019
Originally Posted by slipkornsaad View Post
Wich kernel did you run before that? in my case it keeped all settings in /usr/share/kernel-power-settings folder
I was on Lehto's xlv, then maemo24.. but before that I had many other kernels running, even i dont know exactly which one i was running...

I reverted back to the original using
apt-get install --reinstall kernel kernel-flasher
then i installed maemo25...
 
UNderworld is offline UNderworld
2010-04-18 , 16:09
Posts: 362 | Thanked: 113 times | Joined on Feb 2010
#3020
Originally Posted by AlMehdi View Post
Have you rebooted?
yes i shut down.... then restarted..

I think i might have locked one version previously.. would that mater?
 
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