Develop Bugs

[Q] Why is min frequency changing when I open Faux?

I tried searching but didn't find a question similar to mine.
I flashed slickmod 3.4, 3.6. When I go to SetCpu (or Fauxclock or etc.) it shows both the min and max frequencies at 1.782ghz then 2 seconds later the min frequency jumps down to 384mhz. Every time I open SetCpu (or any similar app) it does this. My question is:
1. Is the min frequency really at 1.782ghz and when I go to SetCpu it goes down for the first time as to trick me?
Also in other roms I experienced this (not min freq being 1.782 though) but the min freq would be on a certain amount and 2 seconds later it would jump to down to a different certain amount right after I open SetCpu or Faux or any other app like this.
Here's the scenario right after I open Fauxclock.
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And here's 2 seconds later

h1a8 said:
I tried searching but didn't find a question similar to mine.
I flashed slickmod 3.4, 3.6. When I go to SetCpu (or Fauxclock or etc.) it shows both the min and max frequencies at 1.782ghz then 2 seconds later the min frequency jumps down to 384mhz. Every time I open SetCpu (or any similar app) it does this. My question is:
1. Is the min frequency really at 1.782ghz and when I go to SetCpu it goes down for the first time as to trick me?
Also in other roms I experienced this (not min freq being 1.782 though) but the min freq would be on a certain amount and 2 seconds later it would jump to down to a different certain amount right after I open SetCpu or Faux or any other app like this.
Here's the scenario right after I open Fauxclock.
And here's 2 seconds later
Click to expand...
Click to collapse
Yeah that's a bug with pretty much all CPU apps on our phone, happens with system tuner as well. Its just a graphical bug, your min frequency is still what it should be at at all times. To confirm that you can use CPU spy which will show your phone using the correct min frequency

Thanks,
Also how do I fix a governer to stick?
Sometimes I change it to another governer, but when I come back to fauxclock
it changes back to the default governer.

Set on boot, or use a script

h1a8 said:
Thanks,
Also how do I fix a governer to stick?
Sometimes I change it to another governer, but when I come back to fauxclock
it changes back to the default governer.
Click to expand...
Click to collapse
I've never had issues with a governor not sticking. I don't use faux clock though, maybe you should try system tuner. If you're not rebooting the governor change should stick but if you need it to change on boot (like if you reboot your phone a lot) you'll have to have the app set it on boot or modify your post boot script like the poster above me said.

High usage in IRQ, need help

Guys, I have no idea what is IRQ as shown in the screenshot below. It seems that the usage is fairly high once I flashed Faux 7m kernel compared to stock kernel and hence drain my battery faster, this is in accordance to the CPU usage shown in the notification bar for viperX 2.1.0 ROM that the CPU runs very often using faux 7m kernel.
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I could barely last for 3hrs OST with very minimum usage compared to 4hrs OST in stock kernel.
Anyone pros here can explain this ? Thanks a lot appreciate your help

May I ask:What software you've use to monitor the CPU usage of each application?

That image shown above I use Elixir 2.
I do use other apps too, including system tuner pro to monitor the usage, the main CPU usage bar is high, but it does not match with the process running, for eg : the main CPU usage shows 40% but sum of all the CPU usage by all the processes is not 40% but much more lower (10%).
I also use betterbattery stat but no problem in wakelock, it's perfectly normal.
Only elixir 2 app manage to find out it is IRQ keeps running.
How ?

whompah said:
That image shown above I use Elixir 2.
I do use other apps too, including system tuner pro to monitor the usage, the main CPU usage bar is high, but it does not match with the process running, for eg : the main CPU usage shows 40% but sum of all the CPU usage by all the processes is not 40% but much more lower (10%).
I also use betterbattery stat but no problem in wakelock, it's perfectly normal.
Only elixir 2 app manage to find out it is IRQ keeps running.
How ?
Click to expand...
Click to collapse
Thank you, I've installed this software too, but Mine's as same as yours, IQR keeps running, hope this wont affect the battery life!
Does anyone else know?

Kernel tweaks to fix stuttering and occasional crashes

I'm sharing some kernel tweaks that I found to eliminate lag, or micro-stutter to be more precise. Messing around with kernel settings can make your system unstable. It takes some experimenting to come up with a setup that runs without app crashes and reboots. Before I start let me clear a few things up:
- Many people claim that they don't experience lag on their phone. That's really great! Please be considerate of others that might be.
- I'm running CyanogenMod 10.2.0, Faux Kernel jfltetmo-aosp-faux-123-013m and I'm performing tweaks with TricksterMod v2.9.832.
I don't suppose you need to match my setup but if you understand what I'm doing you might be able to tweak your system in a similar manner.
- You might experience faster battery drain with this setup. The priority is on performance and stability.
- Phones can get really hot on a sunny day. It's winter here right now so I can't guarantee this will work well in a very hot environment. If you are experiencing crashes it's likely related to how your phone handles heat.
---------------
1) Lock the clock
I figured out by experimenting that the micro-stutter is caused by the CPU changing it's clock. I don't know why the Krait 600 is taking a time penalty when switching frequencies. This should not be happening and it's certainly not a problem with my Nexus 4 which has an older generation Krait CPU. Locking the CPU to a certain frequency made my experience fluid. I set my clock at 1.5GHz but slower frequencies certainly work well for everyday tasks. Be aware that it takes more power to run faster but the relationship isn't linear. If we take 1.5GHz as a base it would take 10% more power to run at 1.9GHz, it will take 10% less power to run at 1.1GHz and it will take 20% less power to run at 270MHz.
I set the governor to 'interactive'. I tried 'performance' but I couldn't verify that the phone was entering Deep Sleep. With 'interactive' the phone is locked at my set frequency and goes to Deep Sleep when it's not working.
The GPU governor works fine at 'performance'.
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2) Increase the IO buffer
My IO buffer was set very low for some reason. 1024 or 2048 is recommended. I like the 'row' scheduler the best. 'deadline' is also recommended.
3) Shut off MP-Decisssion.
This is Qualcomm's thermal throttling. It slows down the CPU when it reaches certain temperature. This is a dangerous tweak so proceed at your own risk! What I do to protect my CPU is I shut off 2 cores instead. Most tasks nowadays can run on a single core but 2 cores really help multitasking. 4 cores aren't really needed. In the 'Specific' screen turn OFF MP-Decission and turn ON 'Intelli-Plug'. Then scroll down and press the 'Intelli-Thermal Control' button. Turn it ON, then in "Offline Cores' turn ON cores 2 and 3. The core number here is 0-based. The 'Core Offline Limit' I set at the lower value they had 50deg. I was experiencing crashes at little above 50 degrees. I'm not sure that's normal. To further protect the CPU make sure the Throttling is enabling on all cores.
Under high stress the temperatures raises to 50 degrees but stays there and the system is very stable.
Please feel free to share your results and ideas.

AEL Screen-OFF V1.2a [ 25/2/][BIG UPDATE]

-------------------------------------------
Welcome to AEL Screen-OFF!
----------------------------------------------
This app is designed to work with faux control, starkissed or synapse and other kernel control apps for AEL kernel on any Qualacom Note4 device.
Features: V 1.2a
----------------
- Automatic detection of current screen-ON settings. (Please set first using a kernel control app)
- Selection of screen-off governor
- Selection of screen-off Min & Max scaling frequencies.
- Selection of screen-OFF hotplug
- Selection of screen-ON hotplug
- Select number of active cores for Screen-OFF
- Stats information in-app and a file at:
/sdcard/aeloffstats.txt
- Auto-set on boot with a 90 second delay.
-Mini tutorial when New version installed
-Notification at boot with clear app data option
-------------------------------------------
-NEW COMPLETELY REWRITTEN CORE TASKS! This version should be very battery friendly and you should never get a failed revert to screen ON settings like was happening in the previous version.
The task setup allows for rapid screen on and off without bugging out YAY!
Detection of screen on settings changes should happen every time without fail.
Ive spent hours and hours perfecting this project so please enjoy and report back your favorite settings.
-------------------------------------------
What is AEL Screen-OFF?
It is an app which works with AEL kernel allowing you to select different settings for when your device's screen is off.
Simply use your favorite kernel settings app to set your screen on settings first.
Download V1.2a
-------------------------------------------
https://www.dropbox.com/s/dth5dejplwfjtgv/AEL_Screen_OFF_1.2a.apk?dl=0
-------------------------------------------
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-------------------------------------------
AEL Monitor V2.1
----------------------------------------------
Download:
https://www.dropbox.com/s/8o44w86ksefg9gx/AEL_Monitor_2.1.apk?dl=0

Reserved...

Reserved2...

Good work Bro. I'll give it a go.
Peace

Warning all! Don't try to use powersave or adaptive governors screen off! Your phone will become unresponsive

Got a full rewrite coming soon. Will not drain battery as hard

This is what I'm talking about! Playing music all day no spikes in freq on three cores mpdecision conservativex

Ok this has been epically hard but i have finally ironed out most bugs in my next version and will post a test tomorrow.
Seriously this version is very very good and useful

Major update has arrived!!

Anyone interested?

rlorange said:
Anyone interested?
Click to expand...
Click to collapse
I think we're all waiting for the Lollipop kernels to come out. There's nothing much we can change on stock.

Yeah, the calm before the storm. Having a G variant i gotta wait even
if F sources stop tomorrow.
Well assumimg AEL for lolipop follows the same kernel interface files should be an easy port.

Using on my tmobile note. So far ?

ktetreault14 said:
Using on my tmobile note. So far ?
Click to expand...
Click to collapse
Use suggested settings and your phone will play music with half the battery drain

rlorange said:
Use suggested settings and your phone will play music with half the battery drain
Click to expand...
Click to collapse
Is this also for Lollipop (BOC3)?

Soon. Please test if you are brave it might work lol. I've got the G device version and it only just got Lollipop.
Getting my bearings. AEL works but no 4G. From memory I need to flash the F modem but this botloops on LP... anyone have a solution? ?

Conservative CPU Governor - Performance mode

Hi Everyone,
I have little experiment about Conservative CPU Governor to get better performance and if anyone of you experienced developers can tell me which settings between these two could give better and smoother UI performance? What do you think?
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Windforce0511 said:
Hi Everyone,
I have little experiment about Conservative CPU Governor to get better performance and if anyone of you experienced developers can tell me which settings between these two could give better and smoother UI performance? What do you think?
Click to expand...
Click to collapse
http://forum.xda-developers.com/general/general/ref-to-date-guide-cpu-governors-o-t3048957
Very good thread, have a look.
gsstudios said:
CPU Governor tuning guide
This post includes:
- CPU governor parameters
Recommended apps for manipulating kernel values:
1. Kernel Adiutor (Free to tune governor variables)
2. Kernel Adiutor-Mod (Free to tune governor variables)
3. Compatible kernel managers (e.g Stweaks, Synapse, UKM, etc.)
NOTE: If you don't have some of these tunables, you might have an older version of the governor/hotplug driver and/or the kernel maintainer has made modifications to it.
CPU governors
4. CONSERVATIVE
[ PARAMETERS ]
Quote:
Ondemand and conservative have some tunables in common, but with a few extras:
i) freq_step - this describes what percentage steps the cpu freq should be increased and decreased smoothly by. By default the cpu frequency will increase in 5% chunks of your maximum cpu frequency. You can change this value to anywhere between 0 and 100 where '0' will effectively lock your CPU at a speed regardless of its load whilst '100' will, in theory, make
it behave identically to the "ondemand" governor.
ii) down_threshold - same as the 'up_threshold' found for the "ondemand" governor but for the opposite direction. For example when set to its default value of '20' it means that if the CPU usage needs to be below 20% between samples to have the frequency decreased.
Click to expand...
Click to collapse
Click to expand...
Click to collapse