Develop Bugs

[Q] Setting clock speed to 800 -1200 mhz?

I know unrooted desire z devices always work at 800mhz. My device is set to 245mhz min and 1400mhz max (interactive or smartass governor). It sometimes causes my device to wake up a bit late. I wonder how long time my battery goes if I set my device at min 800 mhz and max 1200 or 1400 mhz... Did anyone try this clock speeds?

Deadly Sto(R)m said:
I know unrooted desire z devices always work at 800mhz. My device is set to 245mhz min and 1400mhz max (interactive or smartass governor). It sometimes causes my device to wake up a bit late. I wonder how long time my battery goes if I set my device at min 800 mhz and max 1200 or 1400 mhz... Did anyone try this clock speeds?
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That's way too low of a min speed, just bump it up to the next (I think it's 386) and you should see noticable improvement.
I'd also suggest the ondemand gov; since it only ramps up to the top speed when needed, then drops it back down again, you should get a bit better battery life.
Sent from my HTC Vision using XDA App

OriginalGabriel said:
That's way too low of a min speed, just bump it up to the next (I think it's 386) and you should see noticable improvement.
I'd also suggest the ondemand gov; since it only ramps up to the top speed when needed, then drops it back down again, you should get a bit better battery life.
Sent from my HTC Vision using XDA App
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i read ondemand and conservative governors are od, so using interactive or smartass are better then using others. I will try min 368 mhz but am not sure if it works...

What are you trying to accomplish by messing with the clock speed? Leave it alone at default. Performance difference is NEGLIGIBLE (bottleneck is elsewhere), and all you'll accomplish is eating the battery and burning it up with excessive heat caused by excessive clock.

dhkr234 said:
What are you trying to accomplish by messing with the clock speed? Leave it alone at default. Performance difference is NEGLIGIBLE (bottleneck is elsewhere), and all you'll accomplish is eating the battery and burning it up with excessive heat caused by excessive clock.
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First of all, I would like to thank you for your comments.
People don't do anything to access root if they don't want to mess device. I am one of them and want to have a device which both has performance and visuality. You offered me to not to change clock speeds. But we know HTC Desire Z is scheduled to work at 800mhz everytime (default). My opinion is just to set minimum clock speed to 800 mhz or something like this. If my device was burn by this clock speed, it was already dead.
Today i tried this clock speed (min 614, max 1382) and during the day it didn't heat up. Moreover, 8 hours passed, i played NFS for about 1,5 hour, made some call and 30 percent of battery left. It seems this clockspeeds doesn't cause battery drain or i couldn't feel it...
EDIT: 13 hours passes, 16 percent battery left (I made minimum 30 minutes of call)

question about voltage/minimum clock frequency

hi there.
I've been tinkering with voltages and cpu frequencies lately.
I noticed that, with stock voltage values, i have "900" for 122, 245 and 368 mhz.
Now the question is, leaving governors aside for a moment: if i set cpu minimum to 122 or 368, there shouldn't be any battery drain differencies, since they both have the same voltage value.
But technically if i have some background stuff going on, with screen off or when the phone is idle, they will be processed faster with 368 mhz, while with 122 they will take longer to carry on or even force the phone to work to get to a higher frequency to finish the task.
Now i maybe saying a lot of bullcrap since i'm not a developer nor a hardware guy,
but if what i said is true, then in theory it would not be the same if i put minimum to 368, it would actually be better for performance AND the battery??

No, as I have learned from another user here; even if the voltage is the same, the power draw is still different. 122mhz will still use the least amount of power

700 MHz vs 350 MHz minimum CPU setting, which one is better for battery life?

According to Franco 700 MHz is the most efficient. I think all other kernels (+ for sure the phone's default from Samsung & Google) have the minimum set on 350 MHz.
Personally I see it being dependent on usage style; if the phone lays idle a lot the 350 MHz should be better. If you keep waking up the phone every other moment then the 700 MHz makes sense.

350mhz.
700mhz minimum is not more efficient.

Vangelis13 said:
According to Franco 700 MHz is the most efficient. I think all other kernels (+ for sure the phone's default from Samsung & Google) have the minimum set on 350 MHz.
Personally I see it being dependent on usage style; if the phone lays idle a lot the 350 MHz should be better. If you keep waking up the phone every other moment then the 700 MHz makes sense.
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Click to collapse
for francos kernel it might be the case...not others

I think it depends on the governe you're using. when the phone is idle it absolutely doensn't matter (on any kernel) because the cpu shuts down.
when you're using the phone then it depends how the governer manager the cpu to get the task done and race back to minimum freq.
I'm just guessing here but based on this assumption I think 700mhz is better for ondemand/conservative but not so much for interactive.

ArmanUV said:
I think it depends on the governe you're using. when the phone is idle it absolutely doensn't matter (on any kernel) because the cpu shuts down.
when you're using the phone then it depends how the governer manager the cpu to get the task done and race back to minimum freq.
I'm just guessing here but based on this assumption I think 700mhz is better for ondemand/conservative but not so much for interactive.
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I've read that ondemand is more power-hungry than interactive...

anton2009 said:
I've read that ondemand is more power-hungry than interactive...
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Click to collapse
Interactive has less in between steps and is quicker to jump to max
Sent from my francoPhone

Franco uses 700 because of the wake lag caused by 350 when using hot plug mod (shutting off cpu1)
Sent from my Galaxy Nexus using xda premium

With 350 or 700 I still get wake lag.

i'm on franco's latest and hotplug is on and my cpu gov is set to conservative and min freq is 350mhz. no lag on waking at all..

180
Vangelis13 said:
According to Franco 700 MHz is the most efficient. I think all other kernels (+ for sure the phone's default from Samsung & Google) have the minimum set on 350 MHz.
Personally I see it being dependent on usage style; if the phone lays idle a lot the 350 MHz should be better. If you keep waking up the phone every other moment then the 700 MHz makes sense.
Click to expand...
Click to collapse
I'm using 180 in imoseyon's Leankernel experimental builds.. works amazing, telephone spends 70% in this state on average, at 180 undervolting at 875mV.

ArmanUV said:
I think it depends on the governe you're using. when the phone is idle it absolutely doensn't matter (on any kernel) because the cpu shuts down.
when you're using the phone then it depends how the governer manager the cpu to get the task done and race back to minimum freq.
I'm just guessing here but based on this assumption I think 700mhz is better for ondemand/conservative but not so much for interactive.
Click to expand...
Click to collapse
The cpu may idle in a low power state, but it does not shut down. How can the phone run if the CPU stops running? There is no secondary system that intervenes to start the CPU back up.

adrynalyne said:
The cpu may idle in a low power state, but it does not shut down. How can the phone run if the CPU stops running? There is no secondary system that intervenes to start the CPU back up.
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that's what I meant. my point is that power consumption in idle state doesn't depend on the min frequency.

But it matters every time your phone wakes up, even if its momentarily.

Only get lag and signal loss when on 350. 700 seems to give me the best sleep and wake time with no lag. I had to learn the hard way. But figured out from reading around that 350 causes some problems on any kernel/governor.
Sent from my Galaxy Nexus using XDA Premium App

The only time 350mhz gives troubles is if you set the min/max to it for sleep.

ChongoDroid said:
Interactive has less in between steps and is quicker to jump to max
Sent from my francoPhone
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Click to collapse
I think you have that backwards? OnDemand basically just jumps between minimum and max. Only recently has a 2stage part been added in that you can set to around the halfway point for light load tasks.
Interactive used to be more efficient because it didnt jump straight to max speed like OnDemand does. However with the addition of the 2nd stage in OnDemand, that tends to be more efficient now. Besides, Interactive governors are always buggy on any phone I have used them with.
---------- Post added at 03:12 PM ---------- Previous post was at 03:10 PM ----------
ArmanUV said:
that's what I meant. my point is that power consumption in idle state doesn't depend on the min frequency.
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Click to collapse
It does in some ways. It will idle at the lowest speed it can. If you go too low the CPU will drop out and the phone will never wake up or will crash and restart. If you set your minimum to 700MHz then it wont go below that so that becomes the idle speed. And since p=v2*f, the lower your frequency the lower your battery drain.

Actually, stock kernel, onDemand is garbage, and Interactive is best.

EniGmA1987 said:
I think you have that backwards? OnDemand basically just jumps between minimum and max. Only recently has a 2stage part been added in that you can set to around the halfway point for light load tasks.
Interactive used to be more efficient because it didnt jump straight to max speed like OnDemand does. However with the addition of the 2nd stage in OnDemand, that tends to be more efficient now. Besides, Interactive governors are always buggy on any phone I have used them with.
---------- Post added at 03:12 PM ---------- Previous post was at 03:10 PM ----------
It does in some ways. It will idle at the lowest speed it can. If you go too low the CPU will drop out and the phone will never wake up or will crash and restart. If you set your minimum to 700MHz then it wont go below that so that becomes the idle speed. And since p=v2*f, the lower your frequency the lower your battery drain.
Click to expand...
Click to collapse
You're absolutely right, I had em backwards lol
Sent from my Galaxy Nexus using xda premium

Same here.

EniGmA1987 said:
I think you have that backwards? OnDemand basically just jumps between minimum and max. Only recently has a 2stage part been added in that you can set to around the halfway point for light load tasks.
Interactive used to be more efficient because it didnt jump straight to max speed like OnDemand does. However with the addition of the 2nd stage in OnDemand, that tends to be more efficient now. Besides, Interactive governors are always buggy on any phone I have used them with.
---------- Post added at 03:12 PM ---------- Previous post was at 03:10 PM ----------
It does in some ways. It will idle at the lowest speed it can. If you go too low the CPU will drop out and the phone will never wake up or will crash and restart. If you set your minimum to 700MHz then it wont go below that so that becomes the idle speed. And since p=v2*f, the lower your frequency the lower your battery drain.
Click to expand...
Click to collapse
it's not as simple as that. when the screen is off the phone enters deep sleep as much as possible which uses (almost) the same power regardsless of min frequency. The phone obviousely will wake up from deep sleep from time to time and that's when the minimum frequency comes into play. For example, for someone who has a lot of applications syncing every few minutes or someone who listens to music a lot with the screen off (which prevents deep sleep), setting the minimum to 350 will be better. Otherwise, the savings are negligible.
This was put to test by someone here on xda (the gnexus general section) by measuring voltage and current through the battery in different conditions.

[APP] Keep your Phone cool with CPU-Tuner

At the moment i'm on cm10 Alpha 4 with Stock kernel. My phone was often very hot (>55°C) even if i wasnt playing games. I found CPU-Tuner on the Store and now my phone is on Deep Sleep down to 26,5°C cool and while playing "Dead Trigger" over 25min only 46,3°C.
I made some CPU-Settings and Underclocked the QuadCore a little bit. With 51mhz min and 1300mhz max settings on my "Full Battery" Profile, "Dead Trigger" is running without any lag. App Pushed to "system/app" () I also got better Battery Stats trough that App!
https://play.google.com/store/apps/details?id=ch.amana.android.cputuner
http://forum.xda-developers.com/showthread.php?t=1786696
https://play.google.com/store/apps/details?id=com.madfingergames.deadtrigger&hl=de
Pics are Attached, the Battery stats pic is old a new one will be uploaded soon.
New Battery Stats with PIC with 7h 9m 52s
I used the Setup from the old Pics (thats why its not in the Update Post!)
Explanation:
Screen Brigthness all day long 50%
Screen-on-time: 2h 34m 5s
Dead Trigger: CPU: 40m 24s
CPU Foreground: 40m 15s
Mediaserver: CPU: 23m 13s
Active: 1h 42m 44s
Deep Sleep: 4h 27min 13s
Apollo (Music): Active 32m 17s
Tomorrow i'll post a pic for my new setup in updates post...

updates
My new setup is a little more drastic but i want to see what abilitys the App offers:
Leistung:
On @ <=100% Battery
interactive
51mhz to 1000MHz
4 Cores
Normal:
On @ <=50% Battery
interactive
51mhz to 1000MHz
2 Cores
Screen OFF:
On @ Screen OFF
interactive
51mhz to 880MHz
2 Cores
Battery Saving:
On @ <=15% Battery
interactive
51MHz to 640MHz
2 Cores
ANY TIPS ???

Omg the Celsius is from the battery,not from CPU.... Can you read ?
Sent from my HTC One X

I've never said that its the temp of the CPU and does that really matter? The Battery is also very hot while gaming and gets cooler with my setup. Do you know a good APP for monitoring CPU temperature ?
Sent from my HTC One X using xda app-developers app

Dead Trigger doesn't lag when two cores are active.
EDIT: I play all games with two cores, only for battery saving. But now, I set CPU tuner profile to battery saver (740 mhz) and it work smoothly on two cores.

Deleted.

VaderSKN said:
Dead Trigger doesn't lag when two cores are active.
EDIT: I play all games with two cores, only for battery saving. But now, I set CPU tuner profile to battery saver (740 mhz) and it work smoothly on two cores.
Click to expand...
Click to collapse
Wow i never thought that this would work. Did you try that with GTA3 and other games ? Is there any lag in Multitasking operations ? ROM?
Sent from my HTC One X using xda app-developers app

Works great on FIFA!

buy quadcore phone installs app to use only two . sad

@ONE! Where's the Widget Extension? I click on install and then accept and nothing else happens and they aren't in your play store, could please upload and provide them to me. Thanks

Questions about the CPU frequency down automatically

A full charge, use of high frequency to 1900 MHZ CPU, but with power slowly become low, decreases in the CPU frequency even in the case of full load, the frequency of the CPU can't reach the highest, even down to the minimum 204 MHZ. Turn off after two core CPU, up to 1900 MHZ. What reason is this? Seems related to indoor temperature? Or loss battery? My system is Los14.1
Thank you, I hope someone can help me！

same problem but have no idea , really boring.

Same problem with my Pixel C. I could not find a solution yet.