Database Develop

SetCPU usage/benefits?

I was thinking about installing SetCPU but I have heard stories of it not working very well on the Captivate. Does anyone use this, and if so what kind of battery life improvement are you seeing? Post config settings too please!

Its working just fine. I have a live background so my battery usage isnt very great so long as the screen is on. I had some trouble with the system being slow to respond every time I turned the screen back on when I had "screen off" profile set to max 200 and min 100. then it dawned on me that it would always just underclock to 100 I set it to max 200 and min 200 when the screen is off and also started using launcher pro and it is no longer sluggish at all.
This has saved me a gratuitous amount of battery life when the phone is idle.
Default profile
Max 1Ghz
Min 800Mhz
scaling Conservative
Charging/full profile
Same as default but scales on performance
Battery <50%
Max 800Mhz
Min 400Mhz
scaling Ondemand
screen off
Max 200
Min 200
Scale powersave

kenjindomini said:
Its working just fine. I have a live background so my battery usage isnt very great so long as the screen is on. I had some trouble with the system being slow to respond every time I turned the screen back on when I had "screen off" profile set to max 200 and min 100. then it dawned on me that it would always just underclock to 100 I set it to max 200 and min 200 when the screen is off and also started using launcher pro and it is no longer sluggish at all.
This has saved me a gratuitous amount of battery life when the phone is idle.
Default profile
Max 1Ghz
Min 800Mhz
scaling Conservative
Charging/full profile
Same as default but scales on performance
Battery <50%
Max 800Mhz
Min 400Mhz
scaling Ondemand
screen off
Max 200
Min 200
Scale powersave
Click to expand...
Click to collapse
Thanks for these, I was looking for a some decent settings. Mine were close to that to start, but I had no idea what I was doing, haha

I had some stability problems with it that I am now fairly certain are related to adjusting the polling frequency in advanced settings. After disabling setting advanced settings on boot, and a reboot, it has not caused the phone to hang once. I am also fairly sure that the phone boots with the conservative governor enabled and min/max frequencies set to 100MHz and 1GHz, even without SetCPU - so the main benefit here is profiles to force lower clocks with screen off, or during overheat or low battery.

CPU throttles itself. Any effects of setCPU is placebo effect

Err if you set the clocks yourself, you can produce a difference depending on what it's catered towards. I'm sure if I set the max clock to 200 (assuming the app works) for all situations there will be a difference.

Does the stock ROM have a perflock like the EVO that we need to disable?
Also, does the stock ROM automatically underclock at times, or???

I've now verified after clearing user data, the stock firmware already sets the conservative governor and allows it the full range of frequencies supported by the CPU. Only benefit from SetCPU should be profiles - reduce max clock when hot or low battery, that sort of thing.
Sent from my Samsung Captivate

I was going to make a screen off profile of 200mhz, to save battery. Should I bother doing this?
Edit: Nevermind, I'm just going to uninstall it. It's locked up my phone twice already

Default Profile: 800 MHz
Profiles:
Temp > 46 C -- 400 Max 100 Min Conservative
Battery < 40 -- 400 Max 100 Min Conservative
Screen Off -- 400 Max 100 Min Conservative
This now gives my phone life of about 2 days with moderate use (1 hour calls, 1 hour browsing and another 30-45 mins of using apps that need screen on like games, etc)

brandonb81 said:
I was going to make a screen off profile of 200mhz, to save battery. Should I bother doing this?
Edit: Nevermind, I'm just going to uninstall it. It's locked up my phone twice already
Click to expand...
Click to collapse
One thing u got to keep in mind, CPU scales up when woken from low speeds (like when u set for 200 n this takes a second or two). After some R&D i realized 400 MHz when sleeping is optimal with hardly noticeable lag.

Unhelpful said:
I had some stability problems with it that I am now fairly certain are related to adjusting the polling frequency in advanced settings. After disabling setting advanced settings on boot, and a reboot, it has not caused the phone to hang once. I am also fairly sure that the phone boots with the conservative governor enabled and min/max frequencies set to 100MHz and 1GHz, even without SetCPU - so the main benefit here is profiles to force lower clocks with screen off, or during overheat or low battery.
Click to expand...
Click to collapse
well, i have tried playing heavy games like asphalt 5, dungeon hunter, assasin's creed... these all games seemed to work with no lag even at 400 MHz when my battery was less than 40. Most apps I have or used or saw were very comfortable even at 400 MHz. But with multiple apps open, sometimes there was lag, so i set the max at 800 MHz, instead of 1 GHz.
Also, I set my connection to EDGE from 3G. This helped reduce phone from getting heated up with long calls.

I tried using this app myself but uninstalled it after a week. While I'm sure there was some underlying cause, it made my phone never wake up from sleep mode when it turned off.
Honestly thou, I know several android phone owners with s lot of phones That didn't see any real change in their battery life as s result. And based on my experiences, I'd say stay away from it.
Just my 2 cents thou
Sent from my SAMSUNG-SGH-I897 using XDA App

Concept noob idea for a governor

Hello all !
I was bored in school today so I've written a governor concept idea for quad cores. I'm not a dev AT ALL (for now at least, i'm studying many different stuff, hardware / code related too).
I have no idea if this is possible or if this is clever but I wanted to share it anway. If it gives idea to a developer, that's totally worth it, otherwise, well... I had fun doing it
It's called Progressive.
Progressive
The name of the governor says all. The idea behind it is to be «*progressive*». It means it doesn't unleash the full power when it's not needed. It goes progressively higher in freq with more cores. This should make the phone cooler and the battery better. The delay (3 sec ) is just a number, not sure this is really nice. Also, I'm not sure how the S4 handles temperature.
Max freq 1.5 Ghz
Min freq 384 Mhz
Screen off
=> 384-918 Mhz // not too low frequency to avoid reboot
Screen on without touching since 3 sec // always check after 3 seconds for changing the state
=> 384-1134 Mhz only one core online
Screen on touched
=> 594-1134 Mhz two cores online // bump the min_freq to avoid keyboard lag and to add a bit of butter
Screen on touched with a medium load of task // not sure how quantify this
=> 594 Mhz – 1.5Ghz two cores online
Screen on touched with a high load of task // i.e. Games
=> 702 Mhz – 1.5 Mhz four cores online // max power
We also need a thermal protection to avoid any damage, this should do the trick
If the temp is >= 80°C
=> Two cores online max_freq 1134 Mhz until it reaches 70 °C // not sure about the temp, this can be adjusted
If the temps is >=70°C
=> Let 4 cores being possibly online but lower the max_freq to 1134 Mhz
Click to expand...
Click to collapse
What do you guys think ? Is this even possible ? Good, bad idea ?
I hope you enjoy reading it as much as I enjoyed to writte it

doesn't it do this already?

Fissurez said:
doesn't it do this already?
Click to expand...
Click to collapse
I'm not sure how the ondemand governor on nexus 4 works. So I can't really answer, it's really a noob idea that poped into my head today

you pretty much described interactive with mpdecision enabled.
not exactly, but quite.
3 seconds is way too long for the CPU to ramp up (just a matter of tweaking, though). you'd get more lag than you save battery.
mpdecision ramps the cpu to its maximum frequency as soon as a touch input is detected (normally only 2 cores until a certain threshold is reached), so yours should save a bit of power during smaller workloads.
also, if the touch input is released, it clocks the active cores down to 1.02 GHz for a bit before disabling them when not needed.
after all, it seems like a more conservative interactive governor with active mpdecision. could be nice for saving battery while retaining good performance.
it could be a viable choice for those who go for battery life over performance. :good:

Nuu~ said:
you pretty much described interactive with mpdecision enabled.
not exactly, but quite.
3 seconds is way too long for the CPU to ramp up (just a matter of tweaking, though). you'd get more lag than you save battery.
mpdecision ramps the cpu to its maximum frequency as soon as a touch input is detected (normally only 2 cores until a certain threshold is reached), so yours should save a bit of power during smaller workloads.
also, if the touch input is released, it clocks the active cores down to 1.02 GHz for a bit before disabling them when not needed.
after all, it seems like a more conservative interactive governor with active mpdecision. could be nice for saving battery while retaining good performance
Click to expand...
Click to collapse
Thank you Sir, I understand better how mpdecision works now
Glad to see i'm not completely stupid lol

[Q] CPU frequency throttling

hi all
im using DooMKernel for a while and when i set the maximum frequency for any speed faster than [email protected], when the cpu is on heavy load or when the phone temperature is rising above some threshold (i think it's around 45 degrees, not sure tho) - there is an automatic down throttling to stock valus (max 1.5ghz) and nothing will recover it back to modified values unless reboot or reapplying the OC via SetCPU or equivalent.
now, i know there is a 'thermal control' sort of mechanism, and i also know it probably resides both on os level and sony framework, but i wish i could disable it somehow.
i know there is a great risk of frying my XZ, but im only intend to overclock for short terms and not for a main daily usage.
a quote from DooMLoRD's post on the subject:
It has been observed that the overclocking sometimes reverts back automatically to stock settings especially after heavy CPU load and if the device heats up.
I think have found why this happens:
Android OS level
there is a binary called: /system/bin/thermald which writes lower CPU freq values to the CPU sysfs interface if the device starts heating
there is also an app "Overheat Control" which i suspect is doing something similar
Kernel level
there seems to be some sort of fail-safe in place "msm_dcvs" which resets the CPU to 918Mhz or 1026Mhz or 1512Mhz
could also be some other things i am still searching
now there are ways to circumvent these issues but given the risk of the damage associated with overclock for long time i think its in our best interest to not screw with these fail-safes...
Click to expand...
Click to collapse
if someone could plz explain how to totaly disable thermal control - it would be much appreciated.

if you totally disable them your Smartphone will shutdown every time you reach....(cant remember! think it was 75°C) SoC Temp! and you will reach that kinda fast!

[Q&A] [KERNEL][D5803&D5833] AndroPlusKernel

Q&A for [KERNEL][D5803&D5833] AndroPlusKernel
Some developers prefer that questions remain separate from their main development thread to help keep things organized. Placing your question within this thread will increase its chances of being answered by a member of the community or by the developer.
Before posting, please use the forum search and read through the discussion thread for [KERNEL][D5803&D5833] AndroPlusKernel. If you can't find an answer, post it here, being sure to give as much information as possible (firmware version, steps to reproduce, logcat if available) so that you can get help.
Thanks for understanding and for helping to keep XDA neat and tidy!

Thanks
Very nice kernel, fast and smooth - great work and port.
Anyone knows if it's possible to use any third party kernel app to boost the headset volume?

Working
Hi this is my first post, infact I joined so I could report my findings.
I would just like to confirm so far that V5 working on my Z3C using the .93 firmware. I didn't need to wipe cache/dalvik/data partitions either.
For purposes of settings configuration, I'll be using TricksterMod
For stress testing purposes I'll be using Stability Test 2.7
Overclocking
Overclocking seems to work, I'll stress test and report back with the results.
I was wrong, it is unstable when overclocking and stress testing, with the phone force rebooting 1-5 seconds in to the stability test which loaded all 4 cores. Tried 2899Mhz and 2880Mhz (were both unstable and didn't try 2.72, 2.75, 2.57 either - I might try stability testing them.) Was completely stable at 2.47GHz, and it actually stuck there, no throttling in place! I stopped the stress test when the CPU temp was around 77-80C as my hand was getting burnt! The battery temp reached about 46C. It took 10 mins of stress testing for this to be reached. When the stock kernel was in place it would begin throttling after about 1-20 seconds under full load. First 2.2GHz, then 2 then 1.7 then 1.5 and eventually 1.25 after about 2-4mins.
I couldn't do a single core test though. I suspect as most games use single core or dual cores it wouldn't get overly hot.
My opinion is that fast clocked phones should be marketed with 2 speeds. The highest it'll reach under a boost mode (turbo for Intel's i5 and i7 series), and a slower speed that it'll average out at under thermal pressure. The Z3Cs would be turbo: 2.5GHz and normal: 1.5GHz.
Governors
These are quick tests I'm performing here to provide a quick look at responsiveness and potential unnecessary CPU jump ups.
Wheatley - most of the time it's hovering at top speed when approx CPU usage is 9%, it'll occasionally hunt down to 300Mhz but then right back up to 2899MHz. This one is speedy though. Governor tunables available.
Lagfree - idles at 300MHz - 960MHz then hunts up to 2.2-2.9Ghz when needed and turns on the second core. It seems to slow back down to idle. This one seems to have fast scrolling, sliding notifications pane quickly). No governor tunables.
SmartassV2 - idles at 300Mhz, speeds up to 422-960 on core 0, and turns on core 1 at 1.2-1.5GHz for a few seconds under fast scrolling and notification pane opening. Seems quite responsive. Probably good for battery life hopefully with the responsiveness of Interactive. No governor tunables.
Lionheart - Idles at 960 MHz for a few seconds then slows down to 300MHz with the odd increase to 729MHz. Core 0 and Core 1 reaches 1.26GHz under scrolling, notification pane opening. As fast as the others. Governor tunables available.
Hotplugging
Intelliplug appears to work better than MP-Decision - now only one core is on during idle, instead of 2.
MP-Decision was disabled to avoid conflicts.
Undervolting
I've only undervolted 300MHz to 675MHz from 775MHz as of writing this post.
Tried quickly undervolting in trickstermod by setting them all about -75mV, stability tested it, appears stable. I'll tweak the voltages a bit better when I do a scaling stability test.
Issues I've experienced
Sound Control is the only thing so far that causes a reboot. However music still plays over the speakers and headphones. Equaliser works too.
Upon rebooting, the CPU top speed will set itself to 2.2GHz, despite being set higher and saved at a higher speed in Trickstermod. Certainly trivial though.
Strange thing I've noticed: On the undervolt part I've noticed that there is a freq called 3033MHz, but no 2899MHz freq. Just an observation.
Misc
Force Fast Charge confirmed working! Before flashing new kernel charge went up 5% in about half an hour. It's now up another 5% in a matter of 5-10mins. This is when plugged to my PC.
Vibrator strength - set to 20 from 31, much quieter on table and can still feel it.
I'd like to say a huge thank you to DooMLoRD and AndroPlus for developing this stable kernel. Now my Z3C is worth the £28 a month I'm paying for again. Since this silly lad decided to bork the camera, Bravia functionality etc by rooting it on the first day. I'll report back and edit the post with my findings.

Max won't go beyond 2.266 GHz, Min won't change.
Hi All,
Firstly, great job with the kernel. Our Z3C is such a capable piece of kit and this just makes it that much better.
I'm running stock, 23.0.A.2.93, unlocked, rooted.
Problem:
I've tried using both SetCPU and No-Frills and while both show frequencies that are supposedly selectable above 2.266 GHz, neither app would actually respond. Meaning the max frequency will still only be 2.266 GHz even if I tried selecting something like 2.458 GHz (which should be selectable given that stock is 2.458 GHz.) See caps.
In addition, the Min value just won't change at all from 300 MHz. The frequencies scale up and down as the load changes but I can't raise the Min (again using both SetCPU and No-Frills) from 300 MHz.
Tried: I've tried turning off stamina mode and frozen apps that could control CPU activity (e.g. I use DS Battery Saver). I changed up Governors and Schedulers. I've tried re-flashing the kernel and it still doesn't change these behaviors.
Question/Need help: Just wanted to ask if anybody else have any problems setting the max frequency beyond 2.266 GHz and/or changing the minimum frequency from 300 MHz? Would appreciate any help resolving this behavior.
Thanks in advance!

pjmanalo said:
Hi All,
Firstly, great job with the kernel. Our Z3C is such a capable piece of kit and this just makes it that much better.
I'm running stock, 23.0.A.2.93, unlocked, rooted.
Problem:
I've tried using both SetCPU and No-Frills and while both show frequencies that are supposedly selectable above 2.266 GHz, neither app would actually respond. Meaning the max frequency will still only be 2.266 GHz even if I tried selecting something like 2.458 GHz (which should be selectable given that stock is 2.458 GHz.) See caps.
In addition, the Min value just won't change at all from 300 MHz. The frequencies scale up and down as the load changes but I can't raise the Min (again using both SetCPU and No-Frills) from 300 MHz.
Tried: I've tried turning off stamina mode and frozen apps that could control CPU activity (e.g. I use DS Battery Saver). I changed up Governors and Schedulers. I've tried re-flashing the kernel and it still doesn't change these behaviors.
Question/Need help: Just wanted to ask if anybody else have any problems setting the max frequency beyond 2.266 GHz and/or changing the minimum frequency from 300 MHz? Would appreciate any help resolving this behavior.
Thanks in advance!
Click to expand...
Click to collapse
Try installing TricksterMod (from Google Play store, trust me, you'll love it!) Then go to General and set the max speed to 2.46GHz or higher, and try using the Ondemand Governor too. I noticed that it wouldn't stick properly sometimes when using Interactive governor. If it doesn't stick for you then turn Frequency Lock on. Then check in the info tab that it's hitting the higher speed. Personally I'd recommend leaving the min speed on 300MHz. If you need constant high speeds, select the performance governor.

DBCJoey said:
Try installing TricksterMod (from Google Play store, trust me, you'll love it!) Then go to General and set the max speed to 2.46GHz or higher, and try using the Ondemand Governor too. I noticed that it wouldn't stick properly sometimes when using Interactive governor. If it doesn't stick for you then turn Frequency Lock on. Then check in the info tab that it's hitting the higher speed. Personally I'd recommend leaving the min speed on 300MHz. If you need constant high speeds, select the performance governor.
Click to expand...
Click to collapse
Thanks! That did the trick!
Odd that my usual app for the job across 4 other phones - SetCPU - doesn't work on what should essentially be the same job. [emoji55]

Please make sound_control drivers work so its possible to boost headphone volume on the Xperia Z3 Compact... Thanks

Nice work, a lot of updates I like it!
Is it possible to add a change log?
Thanks!

kernel for d5803 with the .93 but not .105
i search a kernel for the d5803 with the last .93 french version of phone

.5.77
Works great! Thanks a lot

Link for Z3C_D5803_AndroPlusKernel_v10.zip is dead
Pls upload in another location.

Yay sound control is working, thank you so much you're the best!

How to make this?
Hi AndroPlus,
I'm trying to figure out how one would go about building this boot.img that you've created.
What platform and compiler are you using?
Where are you getting sources the for the kernel? This file?
c9af6fc647060fb85dd646798453ec8f 23.0.A.2.105.tar.bz2
How do you construct boot.img from zImage + recovery?
Sorry if these are dumb questions.
Edit: never mind, I figured this out.
http://developer.sonymobile.com/kno...evices/how-to-build-and-flash-a-linux-kernel/ contains most of the information I needed.
The arm version of gcc that ships with Ubuntu 14.04 worked fine - arm-none-eabi-gcc (4.8.2-14ubuntu1+6) - no need to track down any mystery binaries. I did have to make several modifications to the kernel source to get it to build. Interestingly, some of the cpufreq stuff contained code that was incorrect. Someone at Samsung needs to go look up what "sequence point" means.
The hardest part was figuring out how to turn the zImage + ramdisk into something I could boot.
This: https://github.com/sonyxperiadev/mkqcdtbootimg was the correct tool to use - again, no need to track down any mystery mkbootimg or dtbTool binaries.
Hope this is helpful to someone. As someone new to Xperia dev, I found most of the information out there worse than useless.

CPU throttling down due to heat

Let me come straight to the point-- Whenever I do any CPU intensive task for long like playing heavy games, CPU heats up and automatically throttles down to like 998 or 784MHz and games start lagging. Everything starts lagging. This phone heats up pretty quickly. I have no problem with handling a hot phone but I DO NOT want the CPU to throttle down. What's the use of Snapdragon 400 when it can't handle the heat?
How can I prevent it from throttling down? (anything to do with that "thermal" section in kernel adiutor?)

Are you using custom kernel?
In kernel auditor you can set the max temp to start throttling.

JD154 said:
Are you using custom kernel?
In kernel auditor you can set the max temp to start throttling.
Click to expand...
Click to collapse
I am using decipher kernel. Where is the temperature setting?

nilanko said:
I am using decipher kernel. Where is the temperature setting?
Click to expand...
Click to collapse
In Thermal screen you should able to set a maximum temperature to start throttling (I didn't used decipher) extended kernel allow this feature

JD154 said:
In Thermal screen you should able to set a maximum temperature to start throttling (I didn't used decipher) extended kernel allow this feature
Click to expand...
Click to collapse
Decipher doesn't have this setting. Can I just turn it off? Titan heats up very quickly so CPU starts getting throttled.

nilanko said:
Decipher doesn't have this setting. Can I just turn it off? Titan heats up very quickly so CPU starts getting throttled.
Click to expand...
Click to collapse
You can't do it because heat will damage the cpu, try changing kernel to extended kernel and try.

JD154 said:
You can't do it because heat will damage the cpu, try changing kernel to extended kernel and try.
Click to expand...
Click to collapse
I was just playing NOVA 3 and it started lagging after a while and saw the CPU ramped down to 784MHz! This is really stupid! What's the use of quad core then?! If I can't even utilize it's potential just due to heat then what's the use? Is there no way to stop it from heating up so much? I switched off all the controls on thermal page but it did nothing. CPU still loves to ramp down.
Is extended kernel available for CM12.1? I can't find it.

nilanko said:
I was just playing NOVA 3 and it started lagging after a while and saw the CPU ramped down to 784MHz! This is really stupid! What's the use of quad core then?! If I can't even utilize it's potential just due to heat then what's the use? Is there no way to stop it from heating up so much? I switched off all the controls on thermal page but it did nothing. CPU still loves to ramp down.
Is extended kernel available for CM12.1? I can't find it.
Click to expand...
Click to collapse
Disable data connection, location, Bluetooth and reduce brightness to the minimum while gaming.
Maybe you have a lot of background process and the cpu load is high. You can try also changing ROM to MM (some optimization and stuff).
Extended kernel is available for 6.0/7.0 AOSP/CM

JD154 said:
Disable data connection, location, Bluetooth and reduce brightness to the minimum while gaming.
Maybe you have a lot of background process and the cpu load is high. You can try also changing ROM to MM (some optimization and stuff).
Extended kernel is available for 6.0/7.0 AOSP/CM
Click to expand...
Click to collapse
Did all that and now I can play a bit more without CPU being throttled down. I also installed halogen kernel that allows to set the temps. I set them to 100 degrees Celsius. No improvement! CPU still throttles down on reaching the default 70 degrees. This phone is totally stupid! We actually can't even use the full potential of the CPU unless we are sitting inside a refrigerator!

A very quick and easy way to fix throttling is flashing a kernel with UnderVolt support.
The only one available for Titan is Halogen Kernel
http://forum.xda-developers.com/moto-g-2014/development/kernel-halogenkernel-r1-t3133042
But be aware that some values still need optimizations, such as 1.4 and 1.5 ghz. They consume more energy than it should, making the phone more warm, but nothing compared to the stock moto values.