yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Android Development] Stuphologist:
It's worth noting that the N7 PA dev uses this kernel.

Dave
[Nexus 7 Android Development] Metallice:
And I use(d) PA.
[Nexus 7 Android Development] Stuphologist:
Governor Tweaks

I was trying to figure out what the governor parameters mean, and stumbled across this.

Dave
[Nexus 7 Android Development] NicoGa:
notably when considering hat Metallice N7 is broken :eek:

Envoyé depuis mon Nexus 7
[Nexus 7 Android Development] ace-user:
flashed a26 an hour ago...ui scrolling is smooth...but noticed obvious drop in battery life compared to a25...

Sent from both my sexy galaxy nexus and nexus 7 X)
[Nexus 7 Android Development] jamesst20:
That's not the way I wish you understood, I'm trying to understand and compare stuff I don't understand and try to help you out too at the same time: S

Edit : a26 runs amazingly smooth :) I looked at default settings and looks like you have changed what I thought :D What made you take such a decision? Was it me :D ?
[Nexus 7 Android Development] R3dbeaver:
And a25 is not smooth, how? Why do people want to get smoother than that? I have a nexus, ipad3, 4, iPhone 5, and 3gs, and droid RAZR. I thought i knew what smooth is... And i think a25 on my n7 is smooth...

A serious question coz I'm not sure i want a26...
[Nexus 7 Android Development] jamesst20:
You know making kernels is a fun thing just like making roms and we feel a bit like competiting with each other even thought sources are most of the time shared. Things can always be improved and there is always somethinf better somewhere. A lot of people desn't really care if it is smooth or not as long as it works and other people (like me) always tries to reach perfection (technically impossible :P)

However, you may want to give a try to a26 because it runs really much smoother then a25 :) For the first time, I must say this kernel rocks and beat other kernels:)

Btw I had the iPod Touch 4 and the iPad 2 and I must say when I had these I thought they were the best and when I got my Nexus 7, I just sold them :D
[Nexus 7 Android Development] knitler:
Sounds like I wil be sticking with a25 since its smooth enough for me and gives me great battery life.
[Nexus 7 Android Development] FReaKRaNT:
I kind of feel that way but what is so huge about flashing 26 and at least trying it for a cycle?

Cheers, FReaKRaNT
[Nexus 7 Android Development] bcvictory:
a26 got 5 hours 4 minutes on my battery test @1.3GHz which is close to the stock results of almost 5 hours. a25 got 6 hours 38 minutes on the same test @1.3GHz
[Nexus 7 Android Development] kilometers4:
After how many battery cycles for each?
[Nexus 7 Android Development] prestige777:
Hey Metallice a-26 is great, is there anyway you can make a 1800Mhz kernel, the reason why I ask is because when I am on ESPN on a forum talking to people during a game, when a lot of people are posting, my tablet slows a crawl on PA beta 8/9 its a long story but basically starting with PA beta 6 it was noticeably slower and with PA beta 8/9 its painfully slow doesn't matter which browser you use either and if you try to hit the home, power button it takes forever to respond (10-15 sec) Back when I had the Clemsyn Elite 1.8 Kernel/Cookies and Cream, this wasn't even close to being a problem and my battery life wasn't that bad either. I like the customized rom and the smooth less powerful Kernels but man its killing me right now during basketball season. I doubt you can do anything though I believe its pretty much a rom issue.
[Nexus 7 Android Development] xfrancis14:
:(.. Guess i my staying with a25
[Nexus 7 Android Development] Kearkan:
The main thing I've noticed in the last few pages is people sure can complain. Honestly there was nothing was nothing wrong with a25, i saw no lag, intact its been almost perfect since i first flashed it.

To the people complaining about "ui lag when I'm scrolling" seriously? Do you spend all your time just scrolling your home screen? If it caused problems in apps, OK, but that has never been a complaint.

I'm sorry to rant and I'm not trying to start a flame war, all I'm saying is people need to appreciate the work our dev is doing, and not just constantly expect more and more. Be happy with what you get!

Having said that, I'm sure metallice still has future plans for the kernel, hope you get an n7 again soon and show us more amazingness!
[Nexus 7 Android Development] ezas:
This ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Personally I'm enjoying a26. I've never been after head snapping speed, but this is smoooootthhhhh.
[Nexus 7 Android Development] ace-user:
who says anything about complaining?the only person i see complaining here is u.. people are reporting issues back to the dev so that he can make the kernel even better(like how he's improving in a26)..if nobody gives feedback, how can he improves it? so stop whining, it's not helping anybody...

p/s: battery life on a26 is kind of bad..but it's just the first cycle, so i'll have to experiment with it further more..credits to the dev for the great work !

Sent from both my sexy galaxy nexus and nexus 7 X)
[Nexus 7 Android Development] prestige777:
I spent 20% of time on 1600 mhz mainly because of what I mentioned earlier, but I still manage six hours battery life on a-26. Although today was a slow day for talking, I average over 40% on 1600mhz on a normal day but still get about five hours.
[Nexus 7 Android Development] Kearkan:
There were people a few pages back saying "the ui is laggy so I'm going to Franco" that's not helping.

And look at the change log, he says pretty much straight up "its smoother than you'll ever want but your battery will suck". I'm sorry, I'm not intending to carry on about it, was just my 2 cents on the feel of the past few pages, i just don't believe we should be sacrificing what this kernel has been all about (getting max performance with max battery) for something as trivial as a slight ui lag that only a few people see, esp considering before that was pages about tweaking governors to fix these things.

Anyway as i said, not after any arguments, ill just be sticking with a25 until Metallica gets a new n7 and brings out a27.
[Nexus 7 Android Development] ace-user:
fair enough..did he mention when he's getting his n7 back?his work has been excellent so far..it's definitely worth the wait..

Sent from both my sexy galaxy nexus and nexus 7 X)
[Nexus 7 Android Development] Kearkan:
Oh, also i have a question, i use betterbatterystats to check wake locks and stuff, as my n7 spends hours at a time in my bag, so standby time is quite important to me. And I've found that using system tuner is great for turning off the components of apps that keep causing wakes, eg notifier components on different games, i know tuner has been reported to cause problems with this kernel, my question is if i only use it for these things and trickster for CPU, will it cause any problems? Or can anyone recommend an alternative app?

---------- Post added at 08:26 PM ---------- Previous post was at 08:23 PM ----------

When he can afford it i think. And i agree
[Nexus 7 Android Development] bhu1:
I am facing freezes and weird lagging of UI is happening every now and then.
[Nexus 7 Android Development] ace-user:
weird...after i flashed a26, auto rotate doesnt work on PA beta9..is anybody experiencing the same thing? or is it just me?

edit: nvm..solved =D

Sent from both my sexy galaxy nexus and nexus 7 X)
[Nexus 7 Android Development] noobandriod:
The 26 is pure butter. It's the best my n7 has ever ran.
[Nexus 7 Android Development] bonzer2u:
try ondemand governor, interactive seems abit flakey for some.....
[Nexus 7 Android Development] ezas:
Auto rotate working here.

<><><><><><><><><><><><><><><><><

Swyped from my N7

Current: PA 2.99 b9 & M-Kernel+ a26
[Nexus 7 Android Development] aalupatti:
Smoothness you are talking is relative...Try a26 and see if its any different
[Nexus 7 Android Development] Sveke:
I don't get why people obsess over battery life on a device like this.

Are you not near a charger for days? Do you live in a tent in the woods? The battery lasts forever. Cmon people.

A26 is great.

Here's my overnight drain, uhhh, yeah....

Sent from my Galaxy Nexus
[Nexus 7 Android Development] luke05dee:
Even though I have tried 1.8ghz on my device stable at 1200mV, the heat wasn't bad and performance was ok. Although performance increase wasn't quite liner from 1.7ghz to 1.8ghz vs 1.6ghz to 1.7ghz suggesting there was a bottleneck somewhere (wasn't thermal throttling, maybe my device just didn't like 1.8ghz), possibly memory bandwidth. But tbh even-though 1.8ghz was cool, the difference between 1.6ghz and 1.8ghz is very small and unlikely to improve your situations at all to justify the potential insatiability, and at those high clock speeds you could damage hardware if you have the voltage set to high long term. :) 1.7ghz for me seems like the absolute highest long term relativity safe clock speed, but even still I won't go above 1.5ghz as I'm more than happy with gpu at 600mhz@1225 and 1.5ghz@1050mV :)
[Nexus 7 Android Development] bcvictory:
I had been running a25 since it came out and did the test a day or 2 ago. a26 had 1 battery cycle
[Nexus 7 Android Development] Stuphologist:
I said it before, I'll say it again, if you're commenting about performance you aren't submitting a bug report, you're confessing that you don't know how to adjust a kernel whose most sterling quality is that the user can tune it. Want battery life? Change a few parameters and you've got battery life. Want performance? Same deal. Its not Metallice's fault, nor is it a flaw in the kernel, if you don't tune it to suit your preferences.

By the same token, everyone should download A26. He made some changes to the code as well as changing the default settings to emphasize performance over speed. The settings changes you can reset. In fact, you should note what you like best so you can restore them over future updates.

It's like getting in a car and complaining about the a/c or the driving position without ever trying to adjust them.

Dave

---------- Post added at 10:35 AM ---------- Previous post was at 10:30 AM ----------

Could you try it with the governor parameters set back to the A25 defaults?

Dave
[Nexus 7 Android Development] Metallice:
I wonder how the interactive governor of a 26 affected things. Completely different from a25. You do use interactive right?
[Nexus 7 Android Development] Metallice:
There's more to a26 performance-wise than just the changes to governor parameters.

Hotplug changes for one. For example a 4 second delay before shutting off any cores instead of 1 second like a25 or 2 seconds like stock. There are more, and these can't be changed
[Nexus 7 Android Development] sert00:
i'm using all these commits from franco already on gnex kernels,good to see you do the same with yours kernel.very curious to flash and enjoy it!i'm trying many kernel in last weeks,but always come back to m-kernel or faux!:good:

right,but for me,and i speak of the very very little i'm doing last months for personal use(simple kangling rom and kangling\cherry picking kernels)kernels are more funny to have to do..roms are bored,and with the kernel we can really enjoy and see improvements and performance gains.there's more fun if you know what to do,also if for me it's so hard....:eek: every step forward,is a big achievement.:o
[Nexus 7 Android Development] Metallice:
Lol they are gone next release. They are freezing and soding and breaking.
[Nexus 7 Android Development] VenomTheCat:
I've been very happy with a25 but reading all these complaints about lag that I haven't seen so today I changed to a26 to see this BUTTER that people r talking about.

So far its pretty much the same since there is still stuttering here and there

I'll use it for today but am going back to a25 tomorrow since I didn't have any issues with lag in any applications or games
[Nexus 7 Android Development] adstraylight:
I was getting a slight stutter when scrolling the app drawer in Apex with 25, so flashed 26 but the glitch remained, even though everything else felt quicker and smoother. As an experiment, I switched to Nova, and the stutter is gone..

Love the enhanced performance Metallice, maybe you should do two versions in parallel a la Clemsyn? Just a thought..
[Nexus 7 Android Development] R3dbeaver:
so u recommend Interactive for a26?

yeah, i suppose there's no harm in trying it for 1 cycle and see if it makes any difference.

but to be clear, i'm not slamming Met for any reason.... it's great that he's working on this even without his N7 and so far its the best kernel ive tried, so kudos. im just giving feedback and asking questions, while trying not to sound like im complaining...

either way,

HAPPY NEW YEAR!
[Nexus 7 Android Development] Metallice:
Absolutely not.
[Nexus 7 Android Development] d.kozzer:
Flashed a26 on CM10.1 - looking very smooth so far. No problems of any kind.
[Nexus 7 Android Development] Metallice:
I don't think it's a coincidence that I add an LP overclock -> some users have audio issues, and then faux adds an LP overclock -> some of his users have audio issues.

I was hoping that a lower LP clock would fix sound for some people but I guess their N7s are just too dainty and sensitive to handle any LP overclock. I guess ill just have to have a NoLPoc version as well. Ill probably stick to 620, 579, and 475.

For those with issues... does a lower LP make the issue less frequent and higher more frequent?
[Nexus 7 Android Development] Jay Aristide:
I'm on the battery saver, whatever it is clocked at, and haven't had the issue since flashing it. I did have it with the 446/513, but much less than with the 484/579
[Nexus 7 Android Development] MrDrift42:
I had no audio issues on your classic. Issues started on alpha one. Tried a few of the alpha 2 kernels. Settled on 484/579. Had the same audio problem with each. Seemed the same either way. Runs great otherwise.
[Nexus 7 Android Development] Metallice:
Interesting. How's the battery holding up on it?
[Nexus 7 Android Development] Metallice:
Yeah alpha 1 had a 620 LP so that seems consistent.
[Nexus 7 Android Development] HoochieCoo:
Yeah. Not on purpose though. I was trying to turn the volume down and managed to fat finger it such that I hit all three buttons. It wasn't immediately after that it booted, but soon. I had time to scroll down a couple of swipes.
[Nexus 7 Android Development] 416inversed:
It's kind of funny. I've been running a2 446/620 w/o any of the popping sound issues experienced by some others; or so I thought...

Apparently, I've had the sound muted on my N7 since yesterday afternoon. As soon as I raised the volume, pop pop.

Heh.

I've now jumped over to the battery saver kernel (Eleven hour flight next week, perfect timing metallice. Thanks).
[Nexus 7 Android Development] Jay Aristide:
Seems pretty good. Been all day on a charge and at 37% now.. Just had my speaker pop three times in ten minutes, though. The last time, it killed audio until I plugged in my headphones real quick :-\
[Nexus 7 Android Development] Metallice:
The battery saver is running the LP at 620 with lowered voltages FYI...among other things.

I'm thinking it may be power or voltage related. ... I really wish I could reproduce the issue with more consistency on my end. I've only had it happen a couple of times during unlock.
[Nexus 7 Android Development] kzakhar:
Thanks for investigating the sound issue, Metallice. If it is solved, this will be the best kernel overall.

FYI, I switched to 513/446 MHz a2, so far no sound issues, but we'll see through the day.

---------- Post added at 09:33 AM ---------- Previous post was at 09:27 AM ----------

I will ask a question, which may appear dumb, but I couldn't find an answer myself: what do you consider to be the default (stock) frequencies and voltages? (I tried asking this question in the Q&A section http://xdaforums.com/showthread.php?t=1950219, but nobody seems to know). Frequency and voltage tables seem to be inconsistent between different kernels, and a2 kernel voltages are somewhere in the middle compared to other kernels I tried, so how do we find out what our devices should be running and how do we undervolt without introducing instability and [sound] issues?

I would appreciate if you could shed some light on voltages :)

Thanks in advance!
[Nexus 7 Android Development] evodon84:
Metallice,

I have been running your M+ a2 kernel on PA 2.23 and its been great. I recently switched to Daxmax Dark PA 2.5 Rom and its not working with your 446/620 a2 kernel. I did the following.

1. Flashed the Rom and GAPPS

2. Booted into Android and setup the Rom and used it for a couple of hours

3. Booted into Recovery wiped caches

4. Flashed M+ a2 kernel

5. Wiped caches

6. Fixed permissions

7. Left recovery but phone hung at Google screen.

8. Powered off phone and went back into recovery and dirty flashed Rom/gapps

9. Booted back into Android and repeated steps 3 - 8 again

After this I was able to get Franco kernel to work. Just wanted to provide some feedback. Please let me know if you would like me to do any further testing or provide you with any more data. I'd be happy to.

Thanks for the great Kernels

sent from my Dark Nexus
[Nexus 7 Android Development] notko:
Okej what's going on. My battery is on 100% like 4hours. It's true, that is in idle status, but 100% ? I am using recommended 446/620 kernel and Jay instructions.

I'm little worried about that...will wait or try with any of installed games on my device.

But if this is a feature, i'm happy. :)
[Nexus 7 Android Development] Kearkan:
Been running the super battery test for the past 48 hours and am restarting from my third lock up, the first 2 times the tablet stopped responding for a few seconds then jumped back to the paranoid android (2.23) boot animation and reloaded (no google screen, just the animation). i thought maybe it was my undervolts so i went from -75 to stock and it just happened again, but this time it was like the tablet just turned off, but i dont think it was quite that because the bluetooth keyboard i was using still had its connection light on, and to start it up again i had to hold the power button down for about 30 seconds to make it reboot. I had deleted /system and /data and cleared all the caches when i first installed the kernel (i was upgrading paranoid android at the same time, so cleared it all out for that then flashed the kernel) so i dont think that should be the problem.

flashing the 620/448 alpha 2 now to see if it does it with that. It never had any problem except for the pops people were talking about on alpha 1.

Besides that though it seems excellent, whatever it is you did differently, the battery definitely seemed to be going down a lot slower than before.

edit: just remembered that after the first reboot i booted into recovery and fixed permissions as well, if theres anything in particular you want me to try, let me know

also

this. I've had the sound disappear i think twice on the battery saver, once when i loaded knights of pen and paper, and once when i went to play a song on spotify. it definitely seems to be that its whenever sound starts, theres a slight chance that it'll just stop all sound till you close everything making noise and reopen it.
[Nexus 7 Android Development] DRSdroid:
I'm wondering if this kernel has merged the patches described here:

http://mehrvarz.github.com/otg-power-nexus7.html

I know the franco kernel currently works with them and even has added options to choose "otg" or "otg + charging". I'm looking to use my nexus in my car as my stereo, but I only have the gb model. If i could keep movies, music, and maps for gps on a 80gb hdd that's independently powered and hooked up to my n7 (already tested successfully), and i could charge the n7 at the same time, I'd be totally set!
[Nexus 7 Android Development] Sharpen3d:
I, too, am eagerly awaiting something like this.
[Nexus 7 Android Development] mrbeardy:
Using the a2 620/446 kernel the cpu seems to get hotter in some games which were cool before. Also, cpuspy showed a much more even spread of all clock speeds being used rather than the high 620 usage as seen in the a1 kernel. This is still using the interactive governor and 102/1500 speeds as before. Battery life isnt as good as a result.

Otherwise, everything is stable, and no sound issues ive noticed yet.

Update -

Playing a lot of 3d games earlier and noticed that they didnt make the chip heat up so much, and i have now seen the 620 usage become more dominant. Battery drain also seems to be improving as well.
[Nexus 7 Android Development] Metallice:
Stock values for 1500Mhz overclock:

/* Cpu voltages (mV): ---- 800, 825, 850, 875, 900, 912, 975, 1000, 1025, 1050, 1075, 1100, 1125, 1150, 1175, 1200, 1212, 1237 */

/* Mhz: ------------------------ 520, 520, 700, 700, 860, 860, 1050, 1150, 1200, 1280, 1300, 1340, 1380, 1500),

(For Tegra SOC ID 2, most kernels force 2)
[Nexus 7 Android Development] Metallice:
The battery saver has a built in core undervolt of -50mV. Your device doesn't like it. Core voltage isn't user modifiable at this time.
[Nexus 7 Android Development] DRSdroid:
Yup yup.. been waiting for it for some time now. I just ordered the cable and i'm setting up a nice way to mount my N7 in my car without having to take it out of it's case.. If all goes well i'll post pics and config info once the project is complete. But I really love Motleys Kernel more than the others I've tried so i was hoping to be able to use it with my config
[Nexus 7 Android Development] Metallice:
I'm not going to throw in a hacky patch while there are still other issues to work out. In time, yes, I can add it. I don't see why not.
[Nexus 7 Android Development] 93foxgt:
a25 works very well for me. I think ill stick with it. Thx.
[Nexus 7 Android Development] jaysmi32:
I've been running interactive since u dropped a26, had no issues, oc @ 1.5ghz and gpu oc @ 520.......am I not suppose to not run interactive? Or are u just messin?
[Nexus 7 Android Development] ezas:
A page or two back he said he made some changes to interactive but didn't really test them, or something to that effect. I'm guessing with the tweaks (for speed) he made to ondemand he thinks it's the best choice.

<><><><><><><><><><><><><><><><><

Swyped from my N7

Current: PA 2.99 b9 & M-Kernel+ a26
[Nexus 7 Android Development] kushasaurus:
He incorporated some tweaks to the interactive gov by Franco that are causing issues.
[Nexus 7 Android Development] KidCarter93:
I've added this kernel to the Nexus 7 Complete Index :)
[Nexus 7 Android Development] bonzer2u:
+1, very impressed with a25 thus far and no need for me to update until the dust settles......