Originally Posted by MoridinBG

There is no point in keeping it at 528Mhz all the time.
Setting the max scaling frequency to 528Mhz would be enough. The device would clock at it only when needed.

This. Also, cpuinfo_min_freq lists the cpu as capable of as low as 19.2 mhz, while scaling has the min frequency at 245 mhz. One could presumably prolong battery life on idle by reducing min frequency further, to e.g. 128mhz

echo 128000 > scaling_min_freq

I'm running at 128mhz-528mhz at the moment, not sure if it makes any significant difference though.

im currently using the 5.0.2h build by haykuro everything runs great the only issue im having is getting it to run on startup i have added it to the /init.rc using adb but even after doing that on reboot it goes back to the default frequency. anyone else having this issue?

Originally Posted by AbsoluteDesignz

where after you enter

cat /proc/cpuinfo

does the cpu speed show?

I *think* it is the BogoMIPS part. When I just ran it (Haykuro 5.0.2H), I got 247.6 BogoMIPS. Setting JUST the max setting to 528, it remained at 247.6. Setting both the minimum and maximum put it at 527.15.

Performance? I don't have any apps installed to test this. But I will say that it does *seem* faster on the home screen. There is no delay on anything. It's snappy as all hell. Placebo? Maybe.

I'll play around with the init.rc when I get home tonight.

*More*

Just did a test. I dropped my minimum to 128. It showed 127.79 - I then started an MP3 song in the background and checked it (while it was playing) and it said 527.15. I paused the song and it went back to 127.79.

If BogoMIPS is what we're supposed to be looking at, it is working as far as scaling. Need a benchmark program of some sort to really test. I wonder how low we could go to save battery life...

Another way to test (without a benchmark app) is to lower it to 64 min and 64 max. See if the phone locks / is slow.

Ok it does work if I set min and max to 528 in 5.01G.

I guess if max is only set, it will just throttle up when needed.

there's definitely a performance improvement when browsing javascript heavy sites.

Originally Posted by KyleK29

I *think* it is the BogoMIPS part. When I just ran it (Haykuro 5.0.2H), I got 247.6 BogoMIPS. Setting JUST the max setting to 528, it remained at 247.6. Setting both the minimum and maximum put it at 527.15.

Performance? I don't have any apps installed to test this. But I will say that it does *seem* faster on the home screen. There is no delay on anything. It's snappy as all hell. Placebo? Maybe.

I'll play around with the init.rc when I get home tonight.

*More*

Just did a test. I dropped my minimum to 128. It showed 127.79 - I then started an MP3 song in the background and checked it (while it was playing) and it said 527.15. I paused the song and it went back to 127.79.

If BogoMIPS is what we're supposed to be looking at, it is working as far as scaling. Need a benchmark program of some sort to really test. I wonder how low we could go to save battery life...

Another way to test (without a benchmark app) is to lower it to 64 min and 64 max. See if the phone locks / is slow.

I don't notice any difference. Are you guys sure BogoMips is supposed to really tell any kind of Proc speed?

http://en.wikipedia.org/wiki/BogoMips

I really hope someone is testing the 128-min/528+max theory to see if it improves battery life. I'm frequently away from any kind of charger for 8+ hours with my phone idle for 90% of that, so if it did, it would be a godsend.

This works for me. If you want an easier way, instally my app that does exactly this. Its called openoverclocker and is on the market. Thanks for the idea buttkicker!

Originally Posted by Powermaniac

I don't notice any difference. Are you guys sure BogoMips is supposed to really tell any kind of Proc speed?

http://en.wikipedia.org/wiki/BogoMips

Yes the BogoMips value is what you want to look out for. Since the haykuro build has dynamic scaling, it will adjust accordingly. =]

I know this method works.
You can download "Neocore" from Market and test it.

Neocore is an OpenGL graphics performance benchmark tool.
I'm posting the before and after screenshots for reference.
The benchmark was run without audio.

The CPU was overclocked to the following setting.
MAX = 528000
MIN = 128000

Originally Posted by MarcusMaximus04@gmail.com

This works for me. If you want an easier way, instally my app that does exactly this. Its called openoverclocker and is on the market. Thanks for the idea buttkicker!

You are welcome and thanks for creating an app.