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-   -   Small app to keep processor at 500Mhz, possible? (https://talk.maemo.org/showthread.php?t=50993)

maemusr 2010-04-25 14:04

Small app to keep processor at 500Mhz, possible?
 
I have the 125-900 kernel and with this design it is fast on hungry apps but those that require on and off load it is choppy. Do you guys know of any apps with a small footprint that would keep the processor going at 500 and back down when not necessary so thinking that I would get rid of the choppyness in reaction time.
thanks

debernardis 2010-04-25 14:16

Re: Small app to keep processor at 500Mhz, possible?
 
You might use the Titan's kernel which allows more granularity in choosing frequencies.

baron von bubba 2010-04-25 14:51

Re: Small app to keep processor at 500Mhz, possible?
 
Quote:

Originally Posted by maemusr (Post 627000)
I have the 125-900 kernel and with this design it is fast on hungry apps but those that require on and off load it is choppy. Do you guys know of any apps with a small footprint that would keep the processor going at 500 and back down when not necessary so thinking that I would get rid of the choppyness in reaction time.
thanks

titans kernel with "ideal" settings has 500 idle and seems to me a much nicer option all round, less stuttering and believe it or not, better battery life too.
queen beecon can be used for simple commands as "widgets"
the things on the right are clock settings that i can alter just by pressing them. the black ones at the top and bottom show me what is running at the time, high and low mhz and they update by clicking or when the desktop is refreshed.
http://3ifvda.blu.livefilestore.com/...425-152820.png
http://3ifvda.blu.livefilestore.com/...425-152851.png
http://3ifvda.blu.livefilestore.com/...425-152915.png

NokiaRocks 2010-04-25 15:13

Re: Small app to keep processor at 500Mhz, possible?
 
Don't you guys think constant 500 Mhz (almost max frequenz with standard kernel) would be bad for the CPU?

baron von bubba 2010-04-25 15:23

Re: Small app to keep processor at 500Mhz, possible?
 
Quote:

Originally Posted by NokiaRocks (Post 627053)
Don't you guys think constant 500 Mhz (almost max frequenz with standard kernel) would be bad for the CPU?

well, any overclocking will reduce life blah blah.......
but with the ideal settings my overclock is usually 850mhz this is running at the same voltage a stock n900 would use @ 500mhz.
"ideal" settings for min freq @ 500 is again a lower voltage than the default @ 250.
imho overclocking and undervolting if it works for you is pretty "safe" (if common sense is observed, funny thing about common sense tho, it aint that common.........)

HTML Code:

FREQUENCY  Nokia  LV    ULV  XLV  ideal
0 MHz      30      30    25    30    30
125 MHz    30      30    25    20    30
250 MHz    38      38    25    30    30
500 MHz    48      48    33    33    30
550 MHz    *54*    48    38    38    33
600 MHz    60    *54*  38    38    38
700 MHz            54    45    45    45
750 MHz            54    45    45    45
810 MHz            54    48    48    48
850 MHz            54    48    48    48
900 MHz            54  *54*  *54*  *54*
950 MHz            54    54    54    54
1000 MHz            60    60    60    60
1100 MHz            72    72    72    72
1150 MHz            72    72    72    72
1200 MHz            72    72    72    72

i think im right in saying that @ 600mhz the stock settings are considered an overvoltage, so running the default maxed out for long periods could be considered as bad..............

moepda 2010-04-25 15:24

Re: Small app to keep processor at 500Mhz, possible?
 
could you share the scripts you use baron von bubba so i can have queen beacon buttons the same ? total noob not at all sure how to do

MohammadAG 2010-04-25 16:03

Re: Small app to keep processor at 500Mhz, possible?
 
Locking the processor at 500/550/600 will fry the device!!!
Don't lock it, the device knows what to do on its own.

baron von bubba 2010-04-25 16:13

Re: Small app to keep processor at 500Mhz, possible?
 
Quote:

Originally Posted by MohammadAG (Post 627096)
Locking the processor at 500/550/600 will fry the device!!!
Don't lock it, the device knows what to do on its own.

explain further please?
what are you basing this claim on?

afak many ppl are now clocking the device, some to stooopid levels, i know it's yet early days but are you not a little surprised even at these silly 850+ levels there have been no failures?

locking the processor @ 600...... so not good even at default settings to use the device for long periods with the processor maxed out??
so where do you draw the line? don't use the device at all for fear of shortening its life span somewhat??

i know my phone battery when idling is now stupidly loooong lasting, on default is was terrible....so more power was being used @ default idle, would this not be worse for the device also?

NokiaRocks 2010-04-25 16:58

Re: Small app to keep processor at 500Mhz, possible?
 
Quote:

Originally Posted by MohammadAG (Post 627096)
Locking the processor at 500/550/600 will fry the device!!!
Don't lock it, the device knows what to do on its own.

That's my opinion too.
250-900 with ideal voltages should be the best compromise.

thp 2010-04-25 17:09

Re: Small app to keep processor at 500Mhz, possible?
 
Quote:

Originally Posted by baron von bubba (Post 627112)
explain further please?
what are you basing this claim on?

Some Nokia Guy (?) at the Maemo Summit '09 explicitly said during one talk that locking the processor at its maximum (non-overclocked) speed will quickly kill it (I don't have the source here to quote from, unfortunately). Spend more time making your apps more efficient and less time overclocking the CPU (or thinking of locking the frequency, for that matter) :)


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