[Q] How to change CPU speed? - Xoom Q&A, Help & Troubleshooting

How can I change the speed the CPU is running at? Setcpu won't allow me to go over 1ghz even with Tiamat 1.4.4 @ 1.7ghz kernel. Newb question I know...

Did you turn on autodetect?

Did you allow setcpu in superuser.apk?

Related

[O3D] Overclock/Downclock guide/tutorial?

[O3D] Overclock/Downclock guide/tutorial?
- can someone explane safe way to downclock(or overclock) GPU/CPU for O3D, I want to downclock to safe some battery life.
Thanks
SetCPU (search xda-developers for free download or market for paid updatable version) works for me, detected cpu speeds and allowed me to change them from 300 to 1008 Mhz, also there are a few options how the processor freq change when needed. For now you can only downclock until a new kernel arrives (not 100% sure what kernel is and if it really enables overclocking - just saying). I didn't try anything with setcpu but if you do please post your feedback
i have installed but i cant set the clock, with setvsel for defy i can define 3 speed for the principal status, in set cpu i see only the maximum rate (1008).
help me tks
Have you rooted your device, before you run setcpu?
what about downclocking, is it really giving extra life for battery?
I use Antutu CPU Master to downclock, it has a cool widget.
wan0eve said:
I use Antutu CPU Master to downclock, it has a cool widget.
Click to expand...
Click to collapse
to what numbers you downclocking and how is battery life after downclocking?

[Q] Where I can read about OC/UV Beater setup?

Please advise me, what settings are the best for HTC Desire S (SHADOW HAWK V2.0|Sense 3.0|Android 2.3.5[2.10.401.8] ROM)?
Or give me a link where I can read what mean: VOC1, VOC2, VOC3, UV1, UV2 pages?
It's really not hard to understand,
VOC 1 2 and 3 are 3 profile of CPU frequency tweakers :
Here you can chose the governor and the frequency of the CPU
You can set wake and sleep governors, low frequency and high frequency.
With Hyperion kernel, i set
ondemand
245000
1152000
conservative
245000
614400
I don't know if you can OC/UV with a stock kernel.. Maybe someone can answer you better than me.
And it's really fluid and low battery eater.
UV1 and 2 are profiles for CPU voltage tweakers
CPU voltage tweak can affect the stability of the system.
The lower the voltage is the greater the battery life is.
I advise a -25mv every where (ALL -25)
But not more, i had stability issues with -50 and more.
I know how to set a cpu clock but I don't understand those profiles onemand, virtuous, conservative etc. Could someone explain me the diffrence between them?
IT.Adviser said:
Please advise me, what settings are the best for HTC Desire S (SHADOW HAWK V2.0|Sense 3.0|Android 2.3.5[2.10.401.8] ROM)?
Or give me a link where I can read what mean: VOC1, VOC2, VOC3, UV1, UV2 pages?
Click to expand...
Click to collapse
if you are using stock kernel then you cant OC or UV
but if you use a custom kernel like Hyperion kernel you can OC /uv
VOC1 is for setting the frequencies
this is what i use
wake
governer: virtuous
min:384000
max:1228800(you can set it higher if you have any lag)
sleep
governer: conservative
min:245000
max:384000
press perm activate button
VOC2,VOC3 are like more profiles which you can switch to when needed
UV1 is for reducing/increasing voltage
if you are using hyperion v2.0 kernel you can uv by -50 (-25 if you have stability issues)
to do this press all -25 twice & then press perm activate
If you are going to change UV settings use the temp activate for a while cause if the phone freezes it will revert to stock settings on reboot
Sent from my HTC Desire S using XDA App
These are called governors. They control the way the CPU ramps up between the maximum and minimum frequency. Go to setcpu's website for a list of descriptions between all the different governor s
Right, setcpu homepage explained me everything.
kartkk said:
if you are using stock kernel then you cant OC or UV
but if you use a custom kernel like Hyperion kernel you can OC /uv
VOC1 is for setting the frequencies
this is what i use
wake
governer: virtuous
min:384000
max:1228800(you can set it higher if you have any lag)
sleep
governer: conservative
min:245000
max:384000
press perm activate button
VOC2,VOC3 are like more profiles which you can switch to when needed
UV1 is for reducing/increasing voltage
if you are using hyperion v2.0 kernel you can uv by -50 (-25 if you have stability issues)
to do this press all -25 twice & then press perm activate
Click to expand...
Click to collapse
Thanks Kartkk for the info. I am using the Endymion sense 3.5 ROM with the Endymion Kernel V2 on my Htc Desire S. Sorry for being such a noob at this but just wanted to ask you lot soemthing. Users on that forum somehow seem to get Quadrant Scores of over 2000, I only manage score upto like 1750 with the settings you have mentioned above. Please Advise.
Thanks in advance.
I'm running a pre-rooted, deodexed 2.3.5, and have now tried 2 different kernels (unity and hyperion) and while I can make changes in SetCPU, I'm unable to alter tin UV settings in UV/OC beater because the kernel doesn't allow it.
Does anyone understand why this might be? X
Default undervolt values
Can someone please post the default undervolt values for the respective frequencies. I want to set back my phone to the default voltage. Thanks allot
OV is risky business if you ask me
I have htcdev unlocked DS (after ics ruu) S-on,...
I guess that some kernels allow UC/OC and UV/OV but some don't. I only tried two diffident roms fallout v5 which allowed both, but now I running finnys JB 4.2.1 rom which allows only UC/OC but not UV/OV(according to pimp my rom app).
Benchmarks cores; fallout5 antutu score: 4600, JB antutu score: 4050 but JB runs faster, smoother, slicker
And if you cannot find default values just restore nandroid backup image, and then look for values there.

[Q] Overclocking with MIUI 1.10.21 (D2G)

Am I wrong in believing this ROM comes with an overclocking kernel? I know in the D2G Development post for the MIUI 1.10.21 ROM, Aceoyame stated you could set the CPU speeds/voltages in the bootloader, but any settings I change there don't seem to change anything in MIUI or setCPU. My setCPU 2.2.4 still won't allow speeds over stock 1200MHz, and there is no smartass governor option in setCPU - just ondemand, userspace, performance. I have tried autodetect and 'show other frequencies' several times, nothing. Is there a setting I'm overlooking, something I need to install?? Is setCPU just reporting the wrong speeds? I've searched for related threads and can't find any, hopefully I haven't missed them... Thanks everyone

[Q] Use No Frills Cpu Control on samsung i9001

hi all, i sincerely don't know how to set no frills cpu control on my samsung galaxy S plus to avoid problems on frequency, don't have OC so max is easy (1400mhz ) but dunno what value choose in min frequency, can someone help me?
u better use 245mhz. try to install custom kernel with better governor.

Overclocking Transformer TF101

Hello world,
I am wondering what program you guys use to overclock your tablet? Or what procedure? I am currently at ARHD rom with ICS test 21.3 kernel and am wondering what clocks do you guys use - suggest also some UV list would be great
thanx
make love,
miHah
apps to control cpu speed
use: set cpu (paid) or nstools (free)
Ok, what about schedulers? I installed setcpu and its on "sio" ondefault. Which one to use and when?
I don't like setcpu, or any app to oc for that matter. When I was on ARHD (and therefore had to use an app) I used No-frills CPU control, not too many bells and whistles and worked.
I highly recommend 'interactive' for a performance governor, it's easier on the battery life than performance and snappy.
Default scheduler with wifi off during sleep tweaks is fine.
I use 1.4 Clock at home and 1.2 out and about, but you can probably go higher if you want, 1.2/4 is plenty fine for me though. (I keep my RAM really free though, I feel that is more important. IMO)

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