yashsingh1/xdaforums huggingface dataset:
[Nexus 7 Original Development] clemsyn:
WOW. Very impressive scores. I've been contemplating about increasing the temp limits. Actually thought about 80 (since I remember Tegra 2 throttles at 85) but I will definitely consider 75 when we go up to 1.9 ghz :)
[Nexus 7 Original Development] clemsyn:
Yeh, I think increasing the core voltage to 1.35 hits all the max speeds really well, the undervolted version keeps the speed with 1.2v which might be a bit difficult for some devices.
[Nexus 7 Original Development] clemsyn:
I'll remember you when I build the 1.9 version :)
[Nexus 7 Original Development] clemsyn:
I believe 2.0 ghz would be pretty difficult to reach unless we have better cooling. I think we might have to increase the cpu voltage to 1.5 to 1.55 v and core voltage at 1.55v. I'm not sure with Tegra 3 but the max I have gone with Tegra 2 (which is still running) is 1.45mv cpu. Maybe 1.9 :)
[Nexus 7 Original Development] clemsyn:
:) looks like the bump in GPU speed has some effect on Quadrant :)
[Nexus 7 Original Development] Apothegm:
Heh, so I downloaded this and the first nightly to update from an older skanky kang (8/11). Wouldnt get past the splash screen so I thought, "oh well, just cant take this kernel i guess" and tried to boot to recovery. Then remembered the whole booloader wont get to recovery unless you connect to the computer thing...

Then I found that when im in fastboot and connect the usb, it locks up, adb wont even recognize it. After a frustrating 10 minutes, i booted to a different partition on my PC and that managed to not lock it up. I flashed morfics kernel and... still wont boot.

All in all, bad download of the ROM. >.<

Now, im running this kernel and despite not being able to run at 1.6 on other kernels... i can run at 1.8 here. Hope thats helpful to know.
[Nexus 7 Original Development] clemsyn:
Looks like the increase in core voltage help your device attain higher speed :)
[Nexus 7 Original Development] simms22:
next time(and you know there will be :p ), after your in the bootloader, then plug in the usb. I find it won't be frozen then.
[Nexus 7 Original Development] Apothegm:
Heh, that was the first thing I thought to try (start quick and simple right?) Turns out it was drivers. That was the difference between my 2 partitions.

---------- Post added at 09:25 PM ---------- Previous post was at 09:22 PM ----------

That's what I assumed, my old nook color needs the bump in voltage as well to overclock decently. Oddly enough though, this is running cooler at 1.8 than 1.5 on others. I'll check the actual temps to be sure but it *feels* a whole lot cooler after several benchmarks than other kernels have after just one.
[Nexus 7 Original Development] willis936:
Wow what a kick ass kernel! I got some sweet scores (that I can't remember) while running 1.8. About five minutes into shadow gun thd it froze from overheating (if that makes any sense). Anyway I'm undecided between 1.5 and 1.6. The GPU bump is greatly appreciated. Obviously running interactive and deadline, everyone's favorites. Keep up the great work.
[Nexus 7 Original Development] t_007_v2:
I have played some TDKR, rip tide, dead trigger & my new favorite C. H. A. O. S on 1.8 and the game play is sweet. Have knocked it down to 1.6 Imo the games right now just don't need all that horsepower. THD games I set at 1.3 since their optimized for the the 4 cores. Games like TDKR that only utilize a single core need a bump to 1.6 and above. I can't wait to test Mc3, nova 3 and mass effect infil

I can't believe the N7 is now at 1.8 with a 650gpu AND STABLE! I wonder if motley & clemsyn understand what they have accomplished with the N7? Pure artistry WOW WOW WOW. As soon as I get paid I plan on hitting a button to keep those artists motivated (;
[Nexus 7 Original Development] superbeak:
During quadrant testing, I reached approx. 106 fps. I said holy dog S**T. But...the heat was too much, and I now have my n7 on a rag on top if an ice pack lol. Extreme kernel.

But! Does the 650 GPU have a good chance of f***king up my nexus?
[Nexus 7 Original Development] espionage724:
I'm wondering this too. The temperature limits should help prevent any damage via overheating, but would running this kernel daily possibly lead to a shorter lifespan on the Tegra 3 chip?
[Nexus 7 Original Development] simms22:
most likely there will be some sort of drop in lifespan, BUT.. chances are that youll long abandon this device for another before you ever notice.
[Nexus 7 Original Development] cobhc:
Anybody else experiencing some momentary stutters in the launcher with any of these kernels? I noticed that opening the app drawer seems to stutter a little. I tried multiple launchers/roms and the only thing that stopped it was reverting back to _motley's kernel, which then brought it back to silky smooth again.
[Nexus 7 Original Development] simms22:
try a different governor
[Nexus 7 Original Development] cobhc:
Thanks. Just tried that and I see no difference, even on Performance Governor @1.7ghz. Only just noticed it today, but it definitely goes away when going back to motley's kernel.
[Nexus 7 Original Development] simms22:
performance governor is terrible. try either interactive or ondemand/deadline.
[Nexus 7 Original Development] cobhc:
The kernel comes stock with interactive enabled, so that rules that out, and I tried ondemand and performance.
[Nexus 7 Original Development] hanthesolo:
I vote +1 on the 2.0 GHZ kernel, I believe that would be really nice to have, even thought it would probably be hot enough to use as a hand warmer during winter ;).

Seriously though, I think you should make 2.0GHZ +700MHZ (?) in your next version, and just dial down the voltages until you get something that doesn't scald your hand/is stable in following compilations. That way you hit your pipe dream, and can focus your time on finding the sweet spot for voltages.

Just a theory (as I don't know if this is feasible), but perhaps to control heat, you can increase/decrease the aggressiveness of core scaling (less coresactive=less heat).
[Nexus 7 Original Development] TheChaoticLlama:
I had the stutter issue and tried pretty much every kernel, turns out it was the rotation app I was using. Are you using one? When I removed it it went back to its normal buttery smoothness. :)
[Nexus 7 Original Development] cobhc:
Nope, just using the stock apps on any of the roms I've tried.
[Nexus 7 Original Development] willis936:
Is anyone else having a hard time getting CPU clocks to stick? System tuner and setcpu aren't doing the trick. I'm completely stable too. No fc, crashes, freezes, overheating, etc.

Problem solved by switching to no frills. As far as incredible performance by raising the thermal limit: that is quite literally insane. You're asking for hardware failure in the near future no two ways about it. Overclocking can be save and stable but the one thing hardware can never handle is temperatures outside of it's rating. If you want badass benchmarks then do as everyone else does and get a nitrogen cooler.
[Nexus 7 Original Development] clemsyn:
I've been sending a few files to pinoyto and we noticed that the vcore is actually a very significant number. It seems that as long as the device gets a stable vcore voltage (with the max timings that we have), we can stick to that voltage and increase the cpu_voltage. I'll relate my findings to _motley to verify :) This finding will enable us to run cooler with higher OC.

Update:

pinoyto stated his stable vcore won't run 1.8 only 1.7 so I guess we need to bump the vcore after all :( but not as much as before
[Nexus 7 Original Development] willis936:
What would you say is the lowest vcore I can get away with running 1.6?
[Nexus 7 Original Development] NCspecV81:
Device dependent. What works on one doesn't mean that it will work on another. Overclocking is a crapshoot. Sometimes you get lucky and sometimes you don't. Just find out for yourself.

Let me know if you get a 1.9 kernel. I'll definitely put it through the wringer for you.
[Nexus 7 Original Development] KiroDawg:
Hmm Asphalt heat 7 seems to freeze and lockup my N7 on the ultimate undervolt kernal (multiple times)In general, it was working quite well on my device until I tried to play Asphalt 7.
[Nexus 7 Original Development] benniebeeker:
does this kernel include CIFs support?
[Nexus 7 Original Development] matique:
I flashed the kernel on the second page and now my n7 is in boot loop.... Can't even get into recovery to well... Recover. What should I do? I wiped dalvich and cache.

Edit.. solved it by using the toolkit and having temporary recovery..
[Nexus 7 Original Development] t_007_v2:
You just need to plug one end of the USB cord into the computer and the other end into your n7. Then hold the power button until it is forced to reset. Screen goes black hold the power and the volume down at the same time. If you do it correctly your boot loader will come up. Then use the volume rocker to select recovery. Hopefully you have a good kernel to flash. I always keep three in my download folder.

Cheers
[Nexus 7 Original Development] Dragooon123:
What is the GPU frequency on the version 1 attached in first post? I understand it should be 600MHz but just confirming. Also, is it compatible with CM10?
[Nexus 7 Original Development] housry23:
Clemson! Glad to see you here. I used your kernel on my Transformer tf101 and it was always solid work. Can't wait to see where this goes.
[Nexus 7 Original Development] willis936:
I also have an issue of not being able to access recovery from the bootloader. Obviously this is an issue because a PC that you own will not always be handy and if you break a ROM you can't boot from a recovery app. When trying to boot recovery from the boot loader it just hangs on the splash screen.
[Nexus 7 Original Development] brizey:
Not a kernel issue...it is a bootloader issue. Since there are no bootloader alternatives yet, every N7 has this issue.
[Nexus 7 Original Development] JohnCorleone:
Only ran a few tests since I couldn't sleep but it seemed to hold up well and I am not even sure if I set everything up right yet...

Sent from my Nexus 7 using Xparent SkyBlue Tapatalk 2
[Nexus 7 Original Development] CharliesTheMan:
As Brizey said this isn't a kernel issue, but the good news is that everyone I've helped out when they thought they were "bricked" because the couldn't access from recovery, I was able to use as a test dummy. So far on several windows computers and one mac and at least one hackintosh, they were able to plug into the USB port of other computers without having to use fastboot or ADB, and as long as it was connected to the computer, they were able to manually enter recovery from the device itself.

You will have to do your own testing to know if it's a guarantee but I feel that most likely it doesn't need to be a PC that you own, most any computer with a working USB port will be fine.
[Nexus 7 Original Development] willis936:
Well not to go down the off topic path but would running adb from a terminal emulator on a rooted phone that is connected to a N7 be able to push a recovery? Not that breaking recoveries is a very common issue. I don't have a micro to micro cable so I won't be able to test if plugging a N7 into another android will let the bootloader into recovery.
[Nexus 7 Original Development] brando56894:
I just used tkt to turn off fsync and used on demand/deadline and I got 71xx in quadrant :D
[Nexus 7 Original Development] 32BitWhore:
Loving it so far, thought I'd share. Keep up the good work!
[Nexus 7 Original Development] Bhonka:
Is it just me or is auto brightness not working?
[Nexus 7 Original Development] 32BitWhore:
Been having the same issue, but it easy enough to use the power control widget to change brightness that I kind of just forgot about it.
[Nexus 7 Original Development] droidgenius:
Wipe data?

do i wipe data or just flash?
[Nexus 7 Original Development] veeman:
It's a kernel so you should be able to just flash.
[Nexus 7 Original Development] clemsyn:
I've got a 2.0 ghz built but non of my testers (pinoyto or secret) can get 2.0ghz...Pinoyto can get to 1.9 but locks up as soon as he starts benchmarking, secret's don't run at 1.9 so I need a couple of testers who are able to undervolt at 1.8 ghz stable. Please PM.

BTW, will update the 1.5 undervolt soon with better timings.. also 1.8ghz with better timings..
[Nexus 7 Original Development] brando56894:
1.8 seems to lock up on me after a little while on the stock ROM, IIRC it would work on AOSP Roms though.
[Nexus 7 Original Development] jamesst20:
Waa ! Booted, the screen had funny color and it froze, then it rebooted and the device made a strenght noise, it was pretty hot. So yeah I rebooted ASAP to bootloader using Power + Volume Up Down, wondering if I should try it again x)

Edit I see x) Profile : Performance, Max 1800Mhz, Min 1800Mhz, might be the cause xD ! But screen still have funny color
[Nexus 7 Original Development] clemsyn:
Try 1.8 with pink fix :)

Also would like to congratulate Simms for able to overclock to 1900 MHZ (WOW)!!!

Latest version of 1.5ghz up..Should be more stable now that I figured out what was causing most device not to boot.. Also decreased the core to 1.15mv YAY!! HAVE FUN.
[Nexus 7 Original Development] jamesst20:
Can I try it ? I'm stable by now with a profile Performance with Min and Max set to 1800Ghz. Anyway I will receive a new device soon xD since I've got a death pixel and I called google to get fixed :)

---------- Post added at 12:55 AM ---------- Previous post was at 12:53 AM ----------

Is there anyway to get higher ? Please :) Btw what apps do you use to manage your CPU Frequency Voltage etc.. ?
[Nexus 7 Original Development] clemsyn:
Just awaiting one more result from a beta tester and Ill PM you a link tomorrow ;)
[Nexus 7 Original Development] simms22:
the SQL score is with 2ghz. quadrant either stops or crashes at that speed. it seems to run fine as long as its not a CPU intensive game. of course, it gets hot quick. the quadrants are from 1.9ghz.
[Nexus 7 Original Development] jamesst20:
Why is your benchmark better then mine :o Same software, same option :o

Is it because your device was colder? Can't get over 5500 at Benchmark :( My device suck :'(
[Nexus 7 Original Development] simms22:
this
[Nexus 7 Original Development] seriouslyjeff:
This..... Kernel?
[Nexus 7 Original Development] simms22:
lol. yes, that kernel!
[Nexus 7 Original Development] JohnCorleone:
I haven't lowered 1800 650 GPU pink fix since flashing it last night. Please let me give 1900 a shot tomorrow!:D I love doing battle with Simms

Sent from my Nexus 7 using Xparent SkyBlue Tapatalk 2
[Nexus 7 Original Development] CharliesTheMan:
You guys could bench race for pink slips, winner takes both tablets lol
[Nexus 7 Original Development] bschrib:
Did you have more than one dead pixel? I'm on device three and it seems to be good except for a dead pixel that's sort of driving me crazy.. just not sure they'll warranty it for one dead pixel.
[Nexus 7 Original Development] jamesst20:
Only have on death pixel but becausw I'm the kind of guy who when I buy something, it must be having perfect hardware, I told them my screen was making funny color sometimes xD
[Nexus 7 Original Development] clemsyn:
Check your PM. To all testers who received the 2.0 kernel. I suggest using System Tuner and undervolting the device. I also don't recommend this kernel for daily use since the voltages are too high (unless somebody can provide me the spec sheet of Tegra 3).
[Nexus 7 Original Development] myepicyear:
I think you guys might be playing with fire at this point :-O I'm just waiting first explosion, lol. But seriously, I've never been overly cautious about pushing the limits of my Android phones(which are obviously more expensive)but for some reason I'm hesitant to push this $250 tablet past a certain point. Might be because this is my first Tegra device, and sinve I've only owned Samsung Android devices before this, I'm very unfamiliar with Tegra's fine-tuning. I don't feel confident enough yet, that I'd be able to recognize when/if I had passed that point. I saw some people mention a little strange behavior after pushing the fps past 100 and the temp past who knows what...any more observations by those people since then? Speaker crackling or any of that? Also, does anybody with a heavy Tegra-background have insight into where Tegra's limitations begin?
[Nexus 7 Original Development] demandarin:
I think i have what both of you are looking for. Its the tegra3 TRM and voodoo analysis document. The zip file was too large to upload. So here is the dropbox link to it.

http://db.tt/Yprfh4i1
[Nexus 7 Original Development] clemsyn:
Big thanks. Downloading at the moment. BTW, I need any input on the latest 1.5 extreme undervolted kernel that I released last night. :)
[Nexus 7 Original Development] willis936:
Could I get a hold of that undervolt 1.5 version? I don't think it's in the OP.

Also I'm not certain if it's this kernel or the deodexed/zip aligned stock ROM I'm running but every once in a while I'll here a slight pop from the speaker and then it won't make any sound for a while though the system still thinks it is. This is remedied by opening up the settings app a few times or rebooting.
[Nexus 7 Original Development] Harry GT-S5830:
Holy crap, had this on windowsill for 1 hr in our lovely cold British summer, set everything to max. Put it through quadrant for some big meaningless number and it got hotter than it would after a hour of gaming :)
[Nexus 7 Original Development] jamesst20:
Sadly my device can't handle over 1.8GHz :( Tried 1.9Ghz and 2Ghz and it just make my device reboot :S
[Nexus 7 Original Development] reddog69:
i will test

hey i will try any extreme kernel u have i am using the 1.8 and 650 mhz without a problem.7200 on quadrant and over 100fps on 2d and 3d.i believe i can pull down 2.0 ghz
[Nexus 7 Original Development] demandarin:
I gotcha. Will download and test it out now ;)

---------- Post added at 08:30 PM ---------- Previous post was at 07:55 PM ----------

I flashed the newest extreme UV kernel. So far so good. Ran quadrant. Scored around 6500 or so on 1.5ghz. Nenamark2 gave me 65.9Fps. I'm sure I could of scored higher asiI didn't let it cool down after quadrant. I did have a reboot running nenamark2 back to back. I chalk THST up to temps getting too high and not letting it cool down in between. But it seems stable for the most part. Ill have to charge my device back up to 100% to see how battery life is.

So this gpu is at 600mhz tops? At least I'm not getting the glitching lines at boot screen like previous kernels at super high gpu speeds.

Great work though. Will report back if any issues arise and on how battery life is.

I've been absent for a few days due to my new galaxy note 10.1. You know how it is with new devices. But I just returned my 16gb one tobest buy for them to order me a 32gb. It'll arice 8/30 at the latest. So my N7 holding me down until then. I'm reminded now how much I love this device.

---------- Post added at 08:56 PM ---------- Previous post was at 08:30 PM ----------

Its in the OP. Check OP second post, the 8/23 update.

---------- Post added at 09:15 PM ---------- Previous post was at 08:56 PM ----------

I'm getting freezing up and rebooting while playing nova3 on multiplayer online. It'll let me play for a while then screen will freeze up and device will reboot. Maybe the UV value is too low for heavy duty gaming. I left everything stock when I flashed kernel. Didn't UV any further or anything.

Web browsing seems to be fine with kernel. Ill try out dead trigger and some other games to see if freezing/reboot occurs.

---------- Post added at 09:41 PM ---------- Previous post was at 09:15 PM ----------

Update: I tried Dead trigger, it crashed to homescreen after short gameplay. Then I tried sonic episode 2 THD. It froze up then rebooted device. Then it kept rebooting after I got to homescreen. I saw the temp was extremely high 70+ C. It kept freezing at homescreen and rebooting. At first I couldn't stay there long enough to hit my recovery widget. I unplugged N7 and was getting ready to hook up to toolkit to get into recovery. But itrebooted again and let me stay long enough to hit recovery widget. I had to go backto motely stable 1.1.11 with 484mhz gpu OC. Everything is fine now again. I think either the gpu value too high or maybe the UV value was too low. But it cause my temps to spike up too high on boot causing constant rebooting.

It was working good briefly though ;)

Edit: I think it blew my N7 speakers..lol. I remember when the games froze up, the sound froze up also making very loud noise. Now watching a music video in vevo, the speakers sound all raspy..even tested out system sounds and they sound very raspy also now. Oh well...if it doesn't go away after a while, ill eventually send my N7 in for replacement. I always had a slight screen lift on left side anyhow. Ill see how it goes :( lol. Not pressed about it. Just f.y.I.
[Nexus 7 Original Development] Rafase282:
I will try the 1.8 version. If it goes well with and without the scripts I will let you know.

It was rebooting on CF bench and antutu
[Nexus 7 Original Development] t_007_v2:
If your unsure of the kernel or settings mute the sound while benching. When the system freezes up and reboots a sound setting gets fried and you get the static and distortion. Happened to me during nena2 benching sys rebooted after a freeze and the sound was never the same. threw headphones no issue threw the speakers distorted crap. I had to send one back because of it. Be careful.
[Nexus 7 Original Development] Rafase282:
I have audio fine, I just went back to Monetley's I can do fine on the 1.7 version and I guess I can make it work for the 1.8 but I dont really need that much as im not playing games. I just wanted to try it since I like your SPB setup since i paid for the app I might aswell try it on the tablet. I just completly forgot about it since I dont use it on my phone anymore.
[Nexus 7 Original Development] t_007_v2:
I set my settings and leave it alone no need to torture my n7 with needless benching lesson learned. Maybe my old n7 was defective with the speakers burning out? With spb 3d I have 7 panels on each side of my home panel. I really love having everything right where I can see it. See I'm a gamer so cpu and gpu performance is important to me. Currently addicted to chaos multiplayer it's a blast shooting people out of the sky. I also have a ton of gameloft on my n7 and those boys over there haven't optimized any of them for the tegra3. It sure seems like they only utilize 1 core allot perhaps 2 cores for a sec or two from checking sys tune pro. Imo 1.3ghz is just to slow for gameloft apps. Those apps seem to perform better at 1.5 and 1.6 with all the background crap I have running. Tegra3 optimized games on the other hand I set the cpu right back to 1.3 x 4 = no help needed.

All the best to you bro.
[Nexus 7 Original Development] demandarin:
That's what seemed to happen..lol. sounds great in headphones but now the external sounds fuzzy or slight static or something. Lesson learned. Not mad about it though. I can send back if I want for my screen lift. I'll think onnit down the road. I use headphones mostly with N7 anyhow.

But it didn't happen while benching. It happened while playing game on latest kernel. It froze, then sound kept looping weird sound, which was very loud, then device rebooted. Happened twice.
[Nexus 7 Original Development] boynamedstacy:
OK, finally got to running some tests with the 2.0GHz kernel :eek:

I started off with my civilian edition N7 and was able to run both 1.9 and 2.0 but as soon as I tried to run a bench test it would reboot. Looks like 1.8 is the highest that tab will go.

On to the developers edition N7 from Google I/O, I was able to successfully run 1.9 and 2.0 with no issues. I started with 1.9 and ran a bench and got the score you see in the screenshot below. Once I upped it to 2.0 and tried to run a bench, the tab would make an interesting whining sound until I forced reboot. Unfortunately I couldn't bench 2.0 on the dev edition :( I will let her cool down a bit before I run another test on 1.9 in hopes to get closer to simms' recent results. I know she can break 8000!!! :D