[KERNEL][MM] SkyMelon 9 [UV][OC][CPU/GPU]

HRSE · Jun 23, 2017

ivy.lally said:
You have done much work, thank you so much for tiding up the code, now it is easier to experiment and to discuss!

And what to do with these files, are they to use by some specific system's interface or just to run them by hand?

Aqua E2303, MM modded, SkyMelon

---------- Post added 23-06-2017 at 12:42 AM ---------- Previous post was 22-06-2017 at 11:55 PM ----------

And please accept some suggestions:
- interactive governor tunable

Code:

write /sys/devices/system/cpu/$1/cpufreq/interactive/above_hispeed_delay "30000 345600:20000 800000:20000 1113600:10000 10000"

doesn't sets up, nor by the sh executable nor in KernelAuditor,
- ...

Aqua E2303, MM modded, SkyMelon

thanks for pointing out, it actually couldn't apply/run because i wrote it wrongly!
I have updated the zip file above, and use your autoSMP thresholds (98/99), thanks!

I have an AutoMagic flow to keep monitoring the config files, when the file is modified then the flow will run the sh command. I use this to quickly change the config (experimental config)
There is another flow to execute the script on startup but it execute a different config file (stable config).

ivy.lally · Jun 23, 2017

...

- you have set Asmp parameter

Code:

write /sys/kernel/autosmp/conf/cpufreq_up 100

and it prevents turning on other big cores, prevailing time there is just one core online rendering some lags you try to compensate with big GPU frequencies.
It's enough to set 99 instead of 100 to revive other cores.

- putting stringent policy to CPU and compensating it with higher GPU seems wasteful, GPU is reported as power hungry and hard to control its energy appetite. It is much better to swap burden to CPU from GPU.

- ...

Aqua E2303, MM modded, SkyMelon

HRSE · Jun 23, 2017

@ivy.lally thanks for pointing that out! I have changed autoSMP thresholds to your settings and the cores are "tamed" now!
I do not limit GPU much because I want the CPU to be the only 'bottleneck' so that I can tune the CPU parameters, if there is any lag or slowdown then i know for sure that the fault is in the CPU settings.
Yesterday I had terrible lags while playing with the Google doodle until I lifted the GPU limit.

AndyPhoenix9879 · Jun 23, 2017

HRSE said:
i do not see the lower frequencies (40MHz, 55MHz, 68MHz, 79MHz, 100Mhz) in the speed-bin mapping tables, can you explain a bit about them?

I have plotted the big CPU frequencies vs voltage level based on qcom,cpr-corner-frequency-map in msm8939-regulator.dtsi, assuming the low frequencies (40MHz, 69MHz, 100MHz) use the minimum voltage level (1)
for battery saving, i suggest to set the governor so that the big CPU spends more time at 200MHz, 346MHz, 800MHz and 1.34GHz. personally i will set min freq to 200 and max freq to 1.34GHz

at the same frequency, the little CPUs use higher power levels than the big CPUs so i will turn them off for power saving (autosmp max_cpus=4)

That's a beautiful plot. Actually I have no idea for the lower frequencies lol...

ivy.lally · Jun 23, 2017

HRSE said:
I have changed autoSMP thresholds to your settings and the cores are "tamed"

And just I wanted you to set this
/sys/kernel/autosmp/conf/cpufreq_up 99
As far as
write /sys/kernel/autosmp/conf/cpufreq_down 98
is concerned I have mixed feelings, its high value needed for switching off cores soon, so as
write /sys/kernel/autosmp/conf/cycle_down 1
as well, but maybe it its somewhat wrong: cores maybe should wait a little bit if they are needed again before switching them off. In fact, switching cores costs energy too so it needs limiting.

Aqua E2303, MM modded, SkyMelon

---------- Post added at 02:24 AM ---------- Previous post was at 02:14 AM ----------

Please, could you explain what foundation backs these settings (It seems you have understood its philosophy):

gpu:
/sys/module/adreno_idler/parameters/adreno_idler_idleworkload 5000
adreno_idler_idlewait 50
adreno_idler_downdifferential 50

cpus:
/sys/devices/system/cpu/$1/cpufreq/interactive/

above_hispeed_delay "30000 345600:20000 800000:20000 1113600:10000"

big:
target_loads
"80 345600:60 800000:40 1113600:85 1344000:88"

little:
target_loads
"80 800000:50 1113600:70"

and what about:
max_freq_hysteresis
?

Aqua E2303, MM modded, SkyMelon

HRSE · Jun 23, 2017

@ivy.lally I'm just blindly exploring the settings, as i have no official documentation about these settings. If anyone has good sources, please share.
Recently, I have come across this very old thread https://xdaforums.com/showthread.php?t=2769899, so I give it a try. You can find the explanations in that thread.
However, there is no point to keep changing the settings without having a way to verify the effectiveness of the settings. How much battery is conserved? 10%? 20%? or just placebo effect?

Maybe we can gain some insight after reading this article Up close and personal: how the Samsung Galaxy S6 uses its octa-core processor

---------- Post added at 10:09 AM ---------- Previous post was at 09:57 AM ----------

In terms of battery life, the higher the frequency of a CPU the more power it will use. There are some clever mathematical equations that show this, but the bottom line is this: multi-core processors are more power efficient than a single core processor running at higher frequencies, or in technical terms multi-core processors have better performance per mW.

Are we heading in the wrong direction when turning on autoSMP?

Another article about big.LITTLE performance and power saving https://community.arm.com/processors/b/blog/posts/ten-things-to-know-about-big-little

@AndyPhoenix9879 maybe my understanding about little cpu's voltage level is totally wrong. Can you explain more about the speed bin for little CPUs?

ivy.lally · Jun 23, 2017

HRSE said:
Are we heading in the wrong direction when turning on autoSMP?

Probably the text is about the most optimal frequency for the silicon material as such, frequency this is 1GHz and it is better to have e.g. 3 cores running at 1GHz at the moment than single core processor at 3GHz.

Asmp conforms to it well, question is if you want max_cpus value =4 or =8?
As we can see =4 suffices well but maybe is it better to set max freq to 1113MHz than to 1344MHz?

Aqua E2303, MM modded, SkyMelon

HRSE · Jun 23, 2017

@AndyPhoenix9879 what is the SuperSU version included in SkyMelon 9?
Is it possible to reinstall SuperSU ZIP in TWRP?

Just now I flashed SuperSU 2.82 and I had this error message :

Code:

Already patched, attempting to find stock backup
Stock restore failed, attempting ramdisk restore
Ramdisk restore failed, aborting

is this expected?

ivy.lally · Jun 23, 2017

Please, take a look into this version, little corrected HRSE work, if somebody observes lags consider changing to Asmp's min_cpus=2 (in my feeling is ok if set =1)
http://cloud.tapatalk.com/s/594d1291f4236/AsmpI.sh.zip
It works quite well and is most battery friendly so far

As so far both min_cpus =1 & =2 seem to have similar power consumption but =2 is better responsive.

And this:

Code:

echo 99 > /proc/sys/kernel/sched_upmigrate 
echo 96 > /proc/sys/kernel/sched_downmigrate

controls how much processes want to migrate to a next cpu (or to return to previous). As we might want to utilize as much as possible the two first cores (without turning on next ones) thus both these values set as high as possible.

And contrary this:

Code:

write /sys/kernel/autosmp/conf/cpufreq_down 50 # 30
write /sys/kernel/autosmp/conf/cpufreq_up 99
write /sys/kernel/autosmp/conf/cycle_down 5
write /sys/kernel/autosmp/conf/cycle_up 5
write /sys/kernel/autosmp/conf/delay 200

ensures a next core is prevented from coming online as far as possible, but if already it is switched on then allow it to do its job and wait a little bit if any next job is loading (prevents excessive switching on/off cores which costs energy)

Aqua E2303, MM modded, SkyMelon

HRSE · Jun 23, 2017

valyo_bg said:
Yes, I have same "optimizing apps" message at every boot of phone when Xposed was installed.

I have removed Xposed but the "optimising app" is still there.
Checking the boot log, I found 3 apps that I converted to system/integrated to system we're the cause. however, 5 other apps that I converted to system we're fine, so maybe there were some error while converting the 3 apps above to system.
I removed 2 of them, but the last one is tricky: Google Play Services → I can't uninstall it.

My (not fully tested) solution: delete file odex.system.sqsh and folder system.odex in recovery mode.
Now booting up is fast, no more"optimising apps" and my system partition has 400MB more of free space.
~~Also, seems like the annoying "NFC capacity full" error is gone also.~~sorry it is still there.
<<< THIS WILL CREATE ANOTHER SERIOUS PROBLEM (UNABLE TO BOOT AFTER WIPING CACHE)

valyo_bg · Jun 23, 2017

ivy.lally said:
Please, take a look into this version, little corrected HRSE work, if somebody observes lags consider changing to Asmp's min_cpus=2
http://cloud.tapatalk.com/s/594d1291f4236/AsmpI.sh.zip
It works quite well and is most battery friendly so far
As so far both min_cpus =1 & =2 seem to have similar power consumption but =2 is better responsive.

And this:
echo 99 > /proc/sys/kernel/sched_upmigrate
echo 96 > /proc/sys/kernel/sched_downmigrate
controls how much processes want to migrate to a next cpu (or to return to previous). As we might want to utilize as much as possible the two first cores (without turning on next ones) thus both these values set as high as possible.

Aqua E2303, MM modded, SkyMelon

Switching of cores is very nice, not so nervous like before. Even time to time stay only on first core at 100MHz. Let test UI for lags and how will be battery life.

---------- Post added at 16:23 ---------- Previous post was at 16:20 ----------

HRSE said:
I have removed Xposed but the "optimising app" is there.
Checking the boot log, I found 3 apps that I converted to system/integrated to system we're the cause. however, 5 other apps that I converted to system we're fine, so maybe there were some error while converting the 3 apps above to system.
I removed 2 of them, but the last one is tricky: Google Play Services → I can't uninstall it.
My (not fully tested) solution: delete file odex.system.sqsh and folder system.odex in recovery mode.
Now booting up is fast, no more"optimising apps" and my system partition has 400MB more of free space.
Also, seems like the annoying "NFC capacity full" error is gone also.

This is a strange, on every installing of Xposed I receive this message regarding optimizing of apps and after removing of Xposed this message disappear

.
Removing of Google play services will kill your automatic backup and user information replication - contacts and etc. It's true that Google Play Services eat battery a lot, but there is no way (or I dont find way) to manage/decrease count of replications per hour ...

HRSE · Jun 23, 2017

valyo_bg said:
Switching of cores is very nice, not so nervous like before. Even time to time stay only on first core at 100MHz. Let test UI for lags and how will be battery life.

---------- Post added at 16:23 ---------- Previous post was at 16:20 ----------

This is a strange, on every installing of Xposed I receive this message regarding optimizing of apps and after removing of Xposed this message disappear .
Removing of Google play services will kill your automatic backup and user information replication - contacts and etc. It's true that Google Play Services eat battery a lot, but there is no way (or I dont find way) to manage/decrease count of replications per hour ...

I have to admit that Google backup & sync services is very useful to me that I don't want to touch it, although sometime it has a lot of wakelocks.
With Xposed and Amplify, you can reduce the Google wakelocks.

valyo_bg · Jun 23, 2017

Yes, but with Xposed my Bluetooth audio not work correct, so I can't use Xposed because of this.

HRSE · Jun 23, 2017

valyo_bg said:
Yes, but with Xposed my Bluetooth audio not work correct, so I can't use Xposed because of this.

sorry I forgot that you mentioned this before.
Does it mean all Bluetooth headset are dead after installing Xposed? I haven't tested this before, let me try...
Edit: music listening is still ok on Bluetooth, what is the problem that you have?

valyo_bg · Jun 23, 2017

ivy.lally said:
Please, take a look into this version, little corrected HRSE work, if somebody observes lags consider changing to Asmp's min_cpus=2 (in my feeling is ok if set =1)
http://cloud.tapatalk.com/s/594d1291f4236/AsmpI.sh.zip
It works quite well and is most battery friendly so far
As so far both min_cpus =1 & =2 seem to have similar power consumption but =2 is better responsive.

And this:

Code:

echo 99 > /proc/sys/kernel/sched_upmigrate echo 96 > /proc/sys/kernel/sched_downmigrate

controls how much processes want to migrate to a next cpu (or to return to previous). As we might want to utilize as much as possible the two first cores (without turning on next ones) thus both these values set as high as possible.

And contrary this:

Code:

write /sys/kernel/autosmp/conf/cpufreq_down 50 # 30 write /sys/kernel/autosmp/conf/cpufreq_up 99 write /sys/kernel/autosmp/conf/cycle_down 5 write /sys/kernel/autosmp/conf/cycle_up 5 write /sys/kernel/autosmp/conf/delay 200

ensures a next core is prevented from coming online as far as possible, but if already it is switched on then allow it to do its job and wait a little bit if any next job is loading (prevents excessive switching on/off cores which costs energy)

Aqua E2303, MM modded, SkyMelon

I just get my phone fully unresponsive, even can't unlock it - so slow working. Only way to overcome was to power off phone via volume-up and power button together. Before this now problems at all, phone work smooth. Maybe is a good idea to enable second cpu core - @ivy.lally could you add it in new zip file?

Edit: I just add second cpu manually inside script file, now one from big and one from small cores work all the time. Let see phone behaviour.

ragnalamb01 · Jun 23, 2017

HRSE said:
sorry I forgot that you mentioned this before.
Does it mean all Bluetooth headset are dead after installing Xposed? I haven't tested this before, let me try...

Yes xposed ****s up bluetooth function even with smartwatch 2. Removing didnt work for me, had to flash a clean prerooted rom.

Enviado desde mi E2306 mediante Tapatalk

HRSE · Jun 23, 2017

ragnalamb01 said:
Yes xposed ****s up bluetooth function even with smartwatch 2. Removing didnt work for me, had to flash a clean prerooted rom.

Enviado desde mi E2306 mediante Tapatalk

I'm using E2353 but I don't think that makes a big difference.
Are we using the same version of Xposed?

I'm using xposed-v87-sdk23-arm64.zip
With a cache wipe after installing

pawwaap · Jun 23, 2017

HRSE said:
My (not fully tested) solution: delete file odex.system.sqsh and folder system.odex in recovery mode.
Now booting up is fast, no more"optimising apps" and my system partition has 400MB more of free space.
~~Also, seems like the annoying "NFC capacity full" error is gone also.~~sorry it is still there.

Please, could you provide the full paths?
Any other side effects, what about performance and battery consumption?

HRSE · Jun 23, 2017

pawwaap said:
Please, could you provide the full paths?
Any other side effects, what about performance and battery consumption?

it is in/system folder
please do a full backup first before any modification (including data partition).
Also, I copy that .sqsh file to SD card so that I can quickly copy back without the need of TWRP restore in case something went wrong (someone says I have to copy it in recovery mode)
I get the idea from this thread https://xdaforums.com/m4-aqua/general/resize-partitions-idea-t3487470
I have just deleted the file 2 hours ago, and rebooted 2 time after that, so far so good.

pawwaap · Jun 23, 2017

HRSE said:
it is in/system folder

Please, write the complete path

[KERNEL][MM] SkyMelon 9 [UV][OC][CPU/GPU]

Which version was the most stable overall?

SkyMelon 7 series

SkyMelon 8

SkyMelon 8x

SkyMelon 9-04062017

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