On Wed, Jul 12, 2017 at 2:04 PM, Zachariah Kennedy zkennedy87@gmail.com wrote:
Good day!
I have been following EAS development for sometime now. Currently, I have implemented EAS in my own personal kernel for the Oneplus 3. It was largely based on the work done for the pixel and I am happy to say that currently, I have gotten better performance and battery life compared to stock CAF with HMP.
These questions will be based on the ACK android-4.4 branch
My first question is regarding tunings for EAS. I have seen many different values thrown around for awhile but I was curious about what everyone close to the project is using for schedutil up/down_rate_limit. Currently the stock values are 1000 (for up and down). Is this still the case for those testing the newest EAS changes using schedutil?
The up/down rate limiting values are a per product decision depending on factors like the cost of switching frequencies and the acceptable delay on increasing frequencies when needed. That said I would suggest you try the values used for Pixel which you can find here: https://android.googlesource.com/kernel/msm/+/android-7.1.0_r0.2/kernel/sche...
Also what about stune? I know stock pixel is using 50 for top-app\schedtune.boost for interactions but that turns out to be overkill with schedutil.
Not sure if overkill because of schedutil, but certainly this can be tuned depending on the platform.
Lastly, I had purchased the Oneplus 5 with the SD835 just so I can port EAS to it as well. I am looking forward to testing how EAS scales with the extra cores to work with when compared to the SD820/821. One main questions regarding the SD835 is I wanted to see if anyone on the EAS-DEV list has developed an energy model for the SD835 (MSM8998). Even if it is just preliminary, I would appreciate any help with this. I do not have a proper energy meter yet.
This is something I am truly interested in. I love the openness of all the Devs close to this project. I have become a better developer having participated and watching from the sidelines. Thanks guys for your hard work.
Kind Regards, Zachariah Kennedy _______________________________________________ eas-dev mailing list eas-dev@lists.linaro.org https://lists.linaro.org/mailman/listinfo/eas-dev