yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Original Development] franciscofranco:
As much I hate to admit that he's right, he does have a point.

Should we try and decrease timer_rate a little bit? That could help the responsiveness a little bit and probably help the Youtube problem.
[Nexus 7 Original Development] williamlaw:
why I can't found those governor setting in franco kernel updater ??
[Nexus 7 Original Development] canofale:
Giving it a go now. What do you think would be best? 25000?
[Nexus 7 Original Development] putomacao:
Here's my battery usage using r61, as you noticed wifi is almost always on and I still have 3% left in my battery.

Sent from my Nexus 7
[Nexus 7 Original Development] The Gingerbread Man:
If you want to lower it then it should be to 15,000, I can't find yellowdies post but he explained it pretty well that the time rate was set in multiples of 15k I believe, this is going back to when we were working out the first set of winning tunables about 6 months ago in gnex thread. Also, conincidently if we drop it to 15k that makes tuna and grouper interactive values the same

This is what I was talking about when I said I'd been working on a little something and it needed under clock to do it. Proposed power modes over at the group, the names aren't set in stone but worth you having a look over. Thanks for looking into under clock there are times its very helpful :)
[Nexus 7 Original Development] canofale:
15k it is.
[Nexus 7 Original Development] nexusmaniac:
What's the screen brightness at? And wow that SOT is amazing :)

N7/N4 - CM10.1 Nightly, Franco Kernel
[Nexus 7 Original Development] poondog:
Regarding underclocking, has anyone tried init.d scripts?

For 1Ghz, change for other freqs.

#!/system/bin/sh

echo "1000000" > /sys/module/cpu_tegra/parameters/cpu_user_cap

Works for me but I've done all sorts of crap to my device loll

Sent from my Nexus 7 using the xda app :)
[Nexus 7 Original Development] putomacao:
Maybe around 20 to 25% brightness, I'm using CM10.1 build 0429..and that is my 2nd full charge cycle and it seems that battery is well calibrated.
[Nexus 7 Original Development] combatdeity:
I'm still getting stuttering in YouTube videos. All stock settings r61, fku has been cleared.
[Nexus 7 Original Development] jazzespresso:
me too....I am using r61 with all default settings, nothing alerted. I was just curious if leaving all default and see the performance. all default settings with f.kernel battery life is good if not great compare to stock kernel.

---------- Post added at 08:18 AM ---------- Previous post was at 08:13 AM ----------

20 to 25% brightness, and you can still see the screen clearly? I know brightness is one of the key element of good battery life. I personally leave it @ 50% most of time, and sometimes bump up to 70-80% depends on situations and where I am using it.
[Nexus 7 Original Development] The Gingerbread Man:
Did you try to lower the timer rate to 15,000? I haven't had any stutters, i have had a fair bit of bufferring and taking a while to load but that's just the internet being slow. When you get the stutters that were occurring before the whole tablet becomes almost unusable and lags like crazy till the screen had been turned off and on again.
[Nexus 7 Original Development] combatdeity:
Ill try that when I'm home. Its definitely not buffer lag.
[Nexus 7 Original Development] flaviocc:
Hi.

You change any kernel settings or run stock?

Thank you.
[Nexus 7 Original Development] nexusmaniac:
Will lowering the timer rate affect the battery?

N7/N4 - CM10.1 Nightly, Franco Kernel
[Nexus 7 Original Development] The Gingerbread Man:
Only minimally, you probably won't tell the difference. Put it this way having hi speed freq at 760 not 1000 saves more from the previous values
[Nexus 7 Original Development] nexusmaniac:
OK thanks :) and setting it to 15000 definitely fixes the lag?

N7/N4 - CM10.1 Nightly, Franco Kernel
[Nexus 7 Original Development] fozzie:
Why not try it and tell us? ;)
[Nexus 7 Original Development] The Gingerbread Man:
I don't have it anymore so you tell me
[Nexus 7 Original Development] combatdeity:
I just tried it, none apparent in the 5-10 min I tested.

I'll test for a longer period tonight, but appears to have fixed the stutter.
[Nexus 7 Original Development] osm0sis:
It'd be worth having those that can reproduce the stuttering to try the entire original set of winning values as well, if changing the timer_rate to 15000 doesn't work: 15000 / 90 / 1000MHz / 45000 / 30000 / 80

They were the only interactive tunables that worked well over on manta without slowdowns.
[Nexus 7 Original Development] nealkoy:
still have micro stutters for me though not that much compared to 30000.

now I increased high speed freq to 1000mhz with timer rate 30000 and no lags so far on the same vids with micro lags. maybe my chipset just sucks.

Sent from my HTC One X+
[Nexus 7 Original Development] combatdeity:
Could you post the notation for this list?
[Nexus 7 Original Development] osm0sis:
Matches the rough order on f.Ku (a few are omitted). And whoops I switched the order on the first two. :p

Here you go:

a_h_d / g_h_l / h_f / m_s_t / t_r / t_l

15000 / 90 / 1000MHz / 45000 / 30000 / 80
[Nexus 7 Original Development] nexusmaniac:
These are good settings, I changed the frequency down to 760MHz and I haven't noticed any stuttering but I still haven't tested it with a YouTube video,I will do that and let you know later:)

N4/N7 - CM 10.1 Nightly, Franco Kernel
[Nexus 7 Original Development] wejgomi:
Still rocking&loving r30. Haven't seen better battery until then. Wish it supported MultiROM though. This is yesterday with auto brightness and -175mv UV.

Wejgomi
[Nexus 7 Original Development] murdah204:
UV is broken
[Nexus 7 Original Development] lollyjay:
True, and much-discussed here. Possible fix in next update.

Nexus 7 WiFi 32Gb | PA 3.15 13-Apr2013 | Nova Prime | Franco-Kernel r61

Nook Color | PA 2.99 | Nova Prime
[Nexus 7 Original Development] wejgomi:
Works well on r30.
[Nexus 7 Original Development] osm0sis:
Does it crash if you lower it too far?
[Nexus 7 Original Development] wejgomi:
Yep, even crashes on these voltages if pushed too far,.
[Nexus 7 Original Development] osm0sis:
Hmm good to know. We weren't sure the last build it worked on. This helps narrow it down a bit.
[Nexus 7 Original Development] wejgomi:
It actually worked on r46 with my old n7, didn't try on this one. Wish I could access old souces, just throw in new conservative governor bam we have ultimate battery. I'm not liking ondemand it just throttles too fast.
[Nexus 7 Original Development] Bobtehblob:
Still getting video lag with Timer at 15000 and hispeed freq at1000mhz. Next point of call?

Also any suggestions to just boost general device performance? I'm perfectly fine with a slight hit to the battery life it's just that my n7 feels a tad sluggish at time. Or maybe it's just the n4 having completely distorted my view of. How it should run ;)
[Nexus 7 Original Development] osm0sis:
Try the full governor settings I posted on the last page.

Also everyone still experiencing the lag needs to make sure they're running defaults. Clear data+caxhe on f.Ku or Trickster and and reboot. And make sure you don't have any init.d scripts interfering.

If none of this works it's either "not all silicon is created the same" or ROM conflict.
[Nexus 7 Original Development] nealkoy:
tried your full governor settings and it seemed better at first but after viewing more reviews in pocketnow YouTube stuttering happened again but only mild this time... using CM 10.1 btw.. maybe it's ROM conflict

Sent from my HTC One X+
[Nexus 7 Original Development] Shmi117:
I get occasional YT lags (once every ~10 videos) using the default kernel settings. I have UC'd to 1000 so that may also contribute to the problem. At least it doesn't lag on every video with r61 (better than r58-r60 releases).
[Nexus 7 Original Development] nexusmaniac:
I know this isn't too so with the Franco kernel but however it is to do with the nexus 7, it's a look at the official nexus 7 travel cover and I think it looks pretty good :)

http://m.youtube.com/watch?v=SP1hc5W49Eo

N4/N7 - CM 10.1 Nightly, Franco Kernel
[Nexus 7 Original Development] drose6102:
Going to try these for a day or two but high speed freq @ 760
[Nexus 7 Original Development] canofale:
Below are some observations from tests run on r61. I did clear apps and reboot before changing settings. Then one hour was spent running the YouTube video 7 times, playing riptide GP, surfing chrome, and using the app Flipboard. All are interactive.

Stock kernel settings: some light stuttering, fast, smooth

Timer_rate set to 15000: very light stuttering, still seems fast

Uber's settings: less than miniscule? If thats possible not really anything, fast, still smooth and battery efficient. Top notch and still my favorite.

Trying this now: 15000/97/760/0/30000/15000/80 CFQ GPU484: no stutter, really fast, smooth

Next up: 15000/95/1000/0/30000/30000/80 CFQ GPU484: ?

I'll test the latter three for battery life later. I think they all will fall within the 6-7 hr range. My goal is the same as most I suppose, a no stutter, fast and efficient setup. Milestone here we come!
[Nexus 7 Original Development] jazzespresso:
UBER's settings? the one he posted awhile back, following;

======================

Max: 1300

Min: 475

Max GPU freq.: 484

Governor: Interactive

=====================

Governor Control:

A_H_D: 15000

G_H_L: 99

HS_F: 760

Input_Boost: 0

M_S_T: 30000

T_R: 30000 (Per UBER's recommendation bump up to 30000, a bit more battery friendly)

T_L: 80

====================

Hotplug:

90 (high load threshold)

20 (med. load threshold)

40 (low load threshold)

====================

Custom Kernel Settings:

I/O Scheduler: CFQ

Fsync OFF

Both Loggers (Turn logger off and Turn Events logging off) OFF

=====================

Voltage:

All default settings (not alerted) -

---------- Post added at 06:16 PM ---------- Previous post was at 06:12 PM ----------

this is quite old news....you should probably asking yourself what happened original N7 smart cover that surfaced when they first introduce N7 last year?? that one disappeared completely because ASUS was afraid that Apple sue their a....ss! :laugh:
[Nexus 7 Original Development] ÜBER™:
Now lets say i just so happen to slip you oh i dunno 20 bucks... will you do it? :laugh: JK if you do ill be grateful it just seems to make things all that much better.

---------- Post added at 04:55 PM ---------- Previous post was at 04:53 PM ----------

Coming from trinity using the same as i did on trinity i saw significant increase i would say 6.5 to 7 hours is more reasonable. IF you're going off that thread in the general subforum that was watching video.. which is significantly different than acutally using the CPU doing tasks that take advantage of it. Such as web browsing and such. Also gaming will wreck the battery pretty bad as well. but if you go back a couple pages where i posted my battery results you'll see what to "expect" with some normal usage.
[Nexus 7 Original Development] cwc3:
If you are on the tablet 9 hours without turning off the screen, reading a downloaded ebook. At the lowest brightness with wifi/Bluetooth/sync off. You can then see 9 hours screen on. I believe a realistic time is 6-7 hours without charging for 24hours.
[Nexus 7 Original Development] franciscofranco:
Depends on your use, but yes seen some people crank up 9 and 10h of screen time with this kernel.
[Nexus 7 Original Development] powerdoesntrun:
Well I know that. But I never do anything cpu intensive, which is similar to how other people here who get great battery life seem to use theirs. I guess what I'm asking is if this kernel is actually better than others for battery life. Having flashed several kernels, it's hard to see any difference.
[Nexus 7 Original Development] krazeecracker:
Flash and see lol takes a few seconds. And I've heard this is the beat AIO kernel around.
[Nexus 7 Original Development] leelaa:
Hope you consider it, maybe have a seperate gpu overclocked kernel line like you did on the galaxy nexus. (I dont have one anymore so not sure if you still do it)
[Nexus 7 Original Development] eugenechiuu:
I flashed Franco r9 yesterday night and experienced SOD when I go to sleep... Flashed r12 today and same thing happened when i went out for dinner.. >< What would be the problem? I am using PA 2.14 rom and I wiped cache as well..
[Nexus 7 Original Development] Ronaldo Forenucci:
Franco,

Just in case it's different: I am not turning off the screen. If I set 1200, close your app, watch a YouTube video, close it, go back to the app, and I'm at 1300 again.

RF
[Nexus 7 Original Development] ÜBER™:
Thats EXACTLY what he addressed.. he needs to patch it then it will fix your issue.

---------- Post added at 05:35 PM ---------- Previous post was at 05:34 PM ----------

Im guessing thats the ROM issue or Tablet issue.. i've never experienced it on any of the ROM's or kernels that i've used.
[Nexus 7 Original Development] :
I've tried the same ones as you. I don't get 9 hours screen on but this kernel has been the best on battery by far for me. I get 7 to 8 hours of screen on with tons of standby in between. I also don't notice much performance difference switching from other kernels with the things I use the tablet for.
[Nexus 7 Original Development] eugenechiuu:
Just got my Nexus 7 last week and I have been testing out a few different kernels like stock, motley and clemsyn as well, this seemed to be the first time I have had such a problem so I was wondering whether there are any conflicting settings or what.. Might it be the voltage during deep sleep being too low?
[Nexus 7 Original Development] simms22:
btw, before i get pitchforked( ;) ), heres a flashable powerHal fix uploaded by motley a while back, for those that have "broken" roms where the cpu settings dont stick powerHal fix

---------- Post added at 07:05 PM ---------- Previous post was at 06:57 PM ----------

really, i wasnt being competitive. ill be very obvious when i am. i do have an issue though, i tend to be very honest(sometimes too honest), and sometimes the truth isnt pleasant or what people want to hear. but you are right as he was, whats most important is that he is enjoying the kernel as well as his device. and no benchmark should ever take that away, as benchmarks arent real, but happiness is.
[Nexus 7 Original Development] ÜBER™:
Just a general question. Would it be better on battery to limit the background processes via developer options? Or would it be worst because I see it using a ton more ram and you would think its using more resources to kill off BG apps it will use more battery doing so.

Sent From My N7 via White Tapatalk
[Nexus 7 Original Development] Wynnded:
So we should just be calling you Frank Simms then right? ;)
[Nexus 7 Original Development] docangle:
I am having the same issue since r9, I am using Stock W/Root ROM.

CPUQuiet Set to Balance, NO OC/UV Changes and WIFI Sleep Policy set to Never.
[Nexus 7 Original Development] eugenechiuu:
Good to know I am not the only one, found any solutions yet?
[Nexus 7 Original Development] hughey2k2:
Thanks Franco for this kernel so far this is the best battery saving kernel I've used yet :good:
[Nexus 7 Original Development] :
I flashed this to Stock JRO03D and so far it seems to be working fine with r13, limiting max freq. to 1000 MHz.
[Nexus 7 Original Development] dropback:
+1

Also had SoD with r9 after a couple of hours deep sleep. Didn't try r13 yet. Rom was PA 2.14. With PA stock Kernel i haven't had any issues.
[Nexus 7 Original Development] ÜBER™:
Seems like yalls issues paranoid android. Try another ROM.

Sent From My N7 via White Tapatalk
[Nexus 7 Original Development] canofale:
Correct, minus the 475 minimum of course. Another interesting note, I'm getting a random change in the input_boost here and there. Goes back to 1 every now and then. Don't know if anyone else has noticed this or if its just me, I'm not seeing any connection to anything specific.
[Nexus 7 Original Development] canofale:
'UPDATED'

Below are my results from tests run on r61. I did clear apps and reboot before changing settings. Then one hour was spent running the YouTube video 7 times, playing riptide GP, surfing chrome, and using the app Flipboard. All are interactive. I will keep updating as I repost this.

Stock kernel settings: some light stuttering, fast, smooth

Stock w/timer_rate set to 15000: very light stuttering, still seems fast

Uber's settings: less than miniscule? If thats possible not really anything, fast, still smooth and battery efficient. Top notch and still my favorite.

15000/97/760/0/30000/15000/80 CFQ GPU484: no stutter, really fast, smooth

15000/95/1000/0/30000/30000/80 CFQ GPU484: no stuttering, really fast as expected.

15000/97/1000/0/30000/15000/80 CFQ GPU484: no stutter, lightning fast

Testing now. 15000/97/1000/0/30000/30000/80 CFQ GPU448: ?

I'll test the best three for battery life later. I think they all will fall within the 6-7 hr range. My goal is the same as most I suppose, a no stutter, fast and efficient setup. Milestone here we come!
[Nexus 7 Original Development] drose6102:
I find these issues with stuttering while watching YouTube don't start until the day after I reboot.

So say Monday after I get home around 4 and start watching videos, I notice stuttering and massive lag to the point that it takes 30 seconds after I hit the power button for the video sound to stop. Then I hit the power button again and it wakes up and back to normal. I know the lag is going to happen no matter what I do so I reboot and enjoy the rest of the night with no issues. At 10 I put the 7 on charge and go to sleep

5am I unplug my tablet and go to work. Come home at 4 and start watching YouTube videos the stuttering is back. So I reboot and thus the cycle begins. I never had this problem before back in the r40s but then again I can't remember when I started running Eos. Tomorrow I will do a clean data and system wipe and flash latest eos with r61

I don't believe this issue is only kernel but kernel+rom related. There seems to be only a small number of people affected by the mysterious stuttering.

Is anyone here rocking eos nightly 66 with Franco r61? And if so do you have any performance issues?
[Nexus 7 Original Development] cityeyes:
I'm sorry if you've already gotten enough logless testimonial, but I just wanted to drop in to say that I'm getting lag on Netflix videos on the newest version on the same rom and rom version that was working just fine with r58 a few days ago. Flashed Franco to my stock rooted N7 pretty much right away and had zero problems. A few days later I switched to CM with the same amount of success, but as soon as I flashed 60 (I believe), Netflix started stuttering occasionally.

I watch a few hours a night and it's never enough to really stop me from watching on my N7, but nothing that I've attempted to change has fixed it yet (all I've done so far is try to switch from interactive back to ondemand governor - didn't want to mess with much else).

If it matters, it seems to play at least a few minutes before the first "jitter" then I get them every minute or two after that.

Oddly, not getting any sort of lag with Youtube as far as I can tell.
[Nexus 7 Original Development] Bobtehblob:
These ones? Will try now.

Edit: Seems to have fixed the issue, will post back.
[Nexus 7 Original Development] jazzespresso:
osm0sis,

I can guarantee that I am running all default settings in f.kernel. In fact, just be safe flash the stock kernel, and Clear data+caxhe on f.Ku app, I uninstall f.kernel app, and reboot...and then reinstalled f.kernel app, and flashed latest r61. it has been like that since yesterday morning, and I can see the youtube lag and nextflix lag issue time to time.

there's something not right on r61, but I am not experienced developer nor users, so can't tell what....

I am now thinking change default f.kernel settings to Uber's settings I posted earlier.....
[Nexus 7 Original Development] Gspin96:
About that frequency-reset when screen is turned off and back on: it also happens on cyanogenmod with its own default kernel, whether the power.grouper.so has been renamed or not. If I set max frequency to 1000MHz in the /performance/processor settings menu and then i exit the menu, turn the screen off and back on and re-enter the menu, the frequency is back to 1300. If i do the same, without exiting the processor settings, the app keeps showing that 1000 is the maximum, but the cpu is ramping at 1300 anyway.

If i run in the terminal

echo "1000000" > /sys/module/cpu_tegra/parameters/cpu_user_cap

like markj338 suggested, the max frequency in the settings menu still keeps at 1300MHz, but the cpu only ramps up to 1000 (the wanted frequency).

I hope this information is somehow useful. Also, this confirms this isn't a franco.kernel's own problem ;)
[Nexus 7 Original Development] osm0sis:
Nice! I guess the max freq file we usually use needs to be symlinked to that one or something and then we'll be in business.

---------- Post added at 12:45 PM ---------- Previous post was at 12:41 PM ----------

Not really my point, though it's important to reset with each new build. I still haven't seen you try the original winning interactive tunables I posted. Please do and report back.
[Nexus 7 Original Development] GedBlake:
OK... I've been running r61 for a couple of days now, and it performs just as well (and in some regards better; ie., smoother) than r48.

r48 is my own personal unofficial milestone... it's solid, stable and very smooth.

Anyway... as I was saying, r61 for the most part, runs great...

BUT EVERY NOW AND THEN

... there is lag. Actually, I wouldn't describe it as lag. I'm not sure how I would characterize it... but something's not quite right.

I use Temple Run 2 as the acid-test for franco's kernel... and at very infrequent intervals with r61, the gameplay becomes 'choppy'... sort of like the 'frame rate' drops... and then it picks up again.

The worst problem I had with r61, was running BBC iPlayer (the media player version, not flash in a browser), and after 15 minutes, that 'staccato' quality (reminiscent of the r50's) began to creep in. Once only, I was nearly unable to exit the app, because the whole Nexus 7 was lagging... but after pressing the power button and repeatedly touching the touch screen, the lag went away, and I was able to regain control of the device again.

But these issues occur so infrequently, that they are almost impossible to replicate on demand (no pun intended).

---------

I'm not an expert in kernel matters... frankly, it's all a bit of a mystery to me. I wouldn't know a 'tuneable' from a piano!:). But despite my reported problems, r61 for the most part runs great, and I get a sense that's in 'spitting distance' of becoming the first official milestone. Just needs a few more tweaks.

---------

Now, where can I get my copy of Android Kernels for Dummies guide from?

Co-authored by Osmosis and The Gingerbread Man

Forward by Franco

Introduction by Metallice

Illustrations by Über

----------

All joking aside, though... what everybody here is doing is great. Through the crucible of experience and experimentation, you're collectively cooking up a kernel to be reckoned with!:).

Just wish I knew a bit more to assist.

Rgrds,

Ged.
[Nexus 7 Original Development] carlos9545:
i have low scores in antutu on the lastest version. like 7000 - 10000. #61
[Nexus 7 Original Development] hotrodwinston:
Love the kernel - super smooth and works great -BUT my WiFi router bit the dust and I am broke so I'm having to ad - hoc thru my win xp htpc. Found out the hard way Franco kernel does not support ad-hoc mode and had to switch to cm built in kernel. Any fixes for this?
[Nexus 7 Original Development] nexusmaniac:
However, if you put any trust in Quadrant scores you could use them to prove that dancing naked for 5 minutes in your garden affects device performance. By Chainfire

:)
[Nexus 7 Original Development] fozzie:
What exactly does that mean? What steps did you take, what errors were you getting, logs etc?