Related
Most of what is below is still accurate, but see this post for links to the kernel download and important infoshttp://forum.xda-developers.com/showpost.php?p=12397646&postcount=580
1-18-11
v.4 - GB’s Impressive Sounding Name Kernel
* As always, many, many thanks to xcaliburinhand.
* Consolidating Steam and Voodoo/CWM kernels into one thread. The two kernels are the same except for recovery, and jfs support in the Steam kernel.
* Started using a proper changelog
* Implemented Impressive Sounding Name Technology AND Dynamic Naming Technology patches; next update to include Dramatic Use of Imagery, with possible Reference to Mythical Creatures patch.
* Cherry-picked some recent commits not included in JPX source. (Will post source this evening, I hadn’t planned on releasing this just yet, but it seems as though it’s already being packaged into a ROM so might as well, right?)
* CONFIG_ARM_THUMBEE=y, enables ThumbEE processor mode, should give some minor JIT performance improvement.
* config_hz=100. With this value, kernel hz = user hz which eliminates HZ <--> USER_HZ conversions. It should also slightly increase battery life without affecting performance.
* Increased default overclock to 1280 MHz. Your may want to revise your undervolt settings, 1280MHz runs at the same voltage as 1200MHz did/does, so you **may** not be able to undervolt as much at 1280. (Yes, I previously said I wouldn’t go past 1200MHz, but, I feel ok going to 1280 since the voltage hasn’t changed and it’s still well below the max vdd_arm.) Use voltage control or setCPU to limit clock speed if you don’t want to use this. Delete your Voltage Control boot settings before booting this kernel. I’m currently using Voltage Control 3.0a.
* Added Voodoo Sound. I hadn’t really planned on it but there were a lot of requests for it.
* Removed i9000 splash screen and replaced with an old familiar one.
* Want lower screen brightness? I know Hardcore did tinkering with the kernel source to do this, but I really like Screen Filter, it even has a Tasker plugin.
* From previous versions: Backlightnotification 2.3, Voodoo color/video fixes re-enabled against my better judgment and even though single-blind testers couldn't tell me which kernels had it and which did not. .
Downloads of v.4 - The file you want is something like rGB-v.4-011811-XXXXX.zip/tar
By clicking any of these links, you agree to flash delete your Dalvik cache and remove any oc/uv boot settings you have before booting. v.4 ClockworkMod zip at the bottom of this post, tar files of Voodoo5/CWM and Steam below for those of you who like to use Odin.
tar of v.4 with Voodoo5 & CWM recovery
tar of v.4 with Steam recovery
Credits
Xcaliburinhand, supercurio, raspdeep, SztupY, sorry if I forgot anyone else.
Stuff I wrote a while ago and may or may not be accurate any more.
1-6-11
This seems to be stable again. Started over from scratch and added in BLN 2.3. Everyone who was affected by charging problems with the previous kernels has not had a shutdown over the last two days of testing. Hopefully we're good again.
1-4-11
Closed testing on newer kernels until I'm fairly confident the issue is resolved again. I had still been getting intermittent reports of charger instability from the reoriented-balls-1-3-11-ocuv-bln23.zip (#47) kernel. Anyone affected by this please switch back to the 'f' builds below, which is the last known rock solid (I think) version.
-----------------------------------------------------------------------------------------------
This kernel is fast, and this kernel is stable. It's overclocked by default to 1.2GHz, but if you don't want to overclock at all, just install either setCPU or download xan's app which I have attached to this post and set the max clock speed to 1.0GHz. This kernel supports init.d scripts, so you have save your settings and have them load at boot.
1100-1200+ Quadrant score on RFS at 1GHz. 1500-1700+ on /data, /dbdata, and /cache on ext4. ~14.1 Linpack at 1GHz. Compare that to any other kernel available here at the same speed and I think you'll see this one comes out on top. I'm not doing this for donations, I just want to my experience with the phone as good as possible. Since this is a Voodoo 5 kernel, you can also make /system ext4 as well for an even smoother experience. This kernel has great battery life and is very stable as well. And when I say stable, I mean, you can use the phone however you want to, you don't have to do any workarounds to keep it from freezing. (edit - as long as you're using one of the build f kernels it seems...) Although, as always, if you aren't 100% satisfied with any of my products, I will give you a full refund.
What this kernel is -
Kernel for 2.2.1 ROMs, (may work on 2.2, but I haven't personally tested it), built from JPX source, with Supercurio's Voodoo 5, overclocked by default to 1.2GHz with raspdeep's code, and Neldar's backlight notification enabled, and re-oriented with xcaliburinhand's code. The undervolting code has been fixed to keep your phone from dying while charging. I'll not be supporting anything beyond 1.2GHz. I hardly use 1.2GHz myself, and from what I've read, many users (but obviously not all) have stability issues with anything much beyond that. This post from one of the senior Android engineers at Google also struck a nerve with me, and is also part of the reason I'll not support anything past 1.2GHz. Samsung actually wrote most of the code for 1.2GHz into the kernel source but had it commented out, so I don't have a problem providing software that will allow users to push it to that level.
Again, for voltage control, use xan's app. I've attached an older version of the app as I'm not sure if the newer one is backwards compatible with the 'older' methods of power management.
Also, standard disclaimers about how if this blows up your phone or tells your girlfriend she's getting fat, it's not my fault. I've had this kernel on my phone for a couple days, so none of that should happen.
How to install - Either flash in ClockworkMod, or use Neldar's really awesome kernel flashing app.
gb-reorient-12-23-build-f.zip is a zip tarred zImage. Unzip, then flash the tar with Odin, or extract the zImage and flash it with Heimdall or Neldar's kernel flashing app.
gb-reorient-fixed-ocuv-f-cwm.zip is a ClockworkMod flashable kernel.
Some thoughts on undervolting
The whole point of undervolting is to safely do the same amount of work with your CPU while using less energy (ie more battery life). Your phone is idle most of the time, so you can the most from undervolting lower frequencies more. Undervolting is safe WHEN you find the settings that work for your phone. Generally, -75mV seems to be stable for everyone. If you want to push it further, go ahead, but realize that if you push it too far, you phone will freeze, and you'll have to pull the battery. Relatively harmless, but, be aware it can happen. Personally, my phone is perfectly stable at the following settings (from 100MHz to 1000MHz) -125mV, -100mV, -100mV, -100mV, -75mV. These settings may not work for your phone. You might find that you can get by with undervolting a little more, but your system will freeze randomly, so if that happens, don't undervolt as aggresively. So, for example, I found that I can usually get by with -150, -125, -125, -125, -100, but every once in a while the phone will freeze up. And since I want a stable system, I've backed down from that. I can't tell you what to do though, but keep in mind that undervolting too much may lead to system instability.
- If you still want to try to find a oc/uv kernel which works for you, don't undervolt at all and tell me if it still happens with kernel #7 (12-23 build from my other thread). As far as I know, no one has had an issue with charger instability on that kernel. If it does still happen, I need to know the kernel version # and for good measure, the production code under your battery (can someone tell me what the name for this is again, I don't feel like shutting off my phone to check), it will be a number like 08.10, 10.10, etc.
- If even with the 12/23 build f kernels and not undervolting at all, you're still get shutdowns when charging, you probably want to get a different kernel. If you insist upon using that one anyway, try charging via USB instead of the wall outlet, it seemed to happen less frequently on older kernels, and I haven't had a charge death in weeks now, so, I'm good at least.
- See if your phone is one of the ones being recalled. If your phone is under recall and these don't work for you, I'm not sure what else I can do.
- These fixes work for me and a lot other people who had the same problem with other oc/uv kernels. Like I said, we're running these out of spec, so a few unlucky souls might not have phones that can handle this. Or maybe some of these kernels have been sprinkled with pixie dust and others haven't. If you find a different kernel that works for you by all means use it. It's all about choice people.
Thanks. Going to try it now.
I flashed 'em at 94%, so we'll see.
But FWIW- I think I've had MAYBE 2 charge deaths when I was on perception. But I was using Setiron's kernels, so I dunno...
I'll report back in a bit.. gonna let it over-charge for a bit and see what happens.
Darky 7.0.1 with your kernel and 100% battery power for 2.5 hours plugged in to the wall and no power off yet. Hopefully this is the fix, I am tired of leaving my computer on all night to charge on usb
thank you so much for this...been looking for something exactly like this, and seems sleep death is gone
darky 7.0.1 here also.
I had it charge around an hr and a half past 100% and no death!
So we'll see how it does overnight
I'll try it out and let you know how it goes, i charge by ac overnight so I should have the results of it to you by morning I'm using it with Assonance 5.2 by the way.
Well no charge death for me last night...
Sent from my GT-I9000 using XDA App
Absolutely no problem, left on ac all night with an undervolt and everything. Great job with this, it made oc/uv usable for me.
Doc's 6.1.3 + your kernel = 100% joy
I found your thread last night after a long and happy Christmas day with the family. Followed your instructions to the letter. Charged overnight from 45% and woke up to find the phone operating fine. This might be the answer to all our prayers!! Thank you so much!
Runs great with eugenes ginger clone. Slightly better benchmarks than other rom/kernel combos. I peak out at 1.3ghz so 1.2 seems like a good medium. One request though is to look into changing the divider for the gpu. I know we don't need it but its good for bragging. Unhelpful had this and I could set the gpu down to 166.750 For lower clocks to save battery and up to 222.334 (stable) for benchmarks. I never tried other clocks so I don't know if it would work on other settings. It depends on how his code works. but it seems by my math the gpu is divided off a 2000 or 2001mhz frequency. There is a margin of error I guess. and stock is divided by 10. In unhelpfuls code it is divided by 9 (222.334) default but could be set to 10 or 12. If we bump that up to 15 or 20 we might reduce battery consumtion with a gpu clock at 133 or even 100mhz. Id also like to try the divider at 8 for 250mhz. Im curious as to how that would benchmark if its stable.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
Ive been charging since 2pm yesterday and its still on. I think you got the fix
No problems here charging overnight. For those who care about quadrant scores, mine was about 250 points higher than the other 1.2ghz kernel I was using.
I get better quadrant scores too vs.my setiron 1.47 1200 kernel. I don't know if it's due to this kernel, but for some reason I'm getting much better battery life since flashing it.
opcow said:
I get better quadrant scores too vs.my setiron 1.47 1200 kernel. I don't know if it's due to this kernel, but for some reason I'm getting much better battery life since flashing it.
Click to expand...
Click to collapse
Same here, battery life seems better..I've noticed it not draining so quickly, im at 85% when usually id be at 50-60%
Sent from my Captivate
I've found Darky's 7.01 works best on my phone, could it be true this makes it run faster? Do I need to have full charge or can i flash this at any battery level?
I didn't look at the actual quadrant score. But my fps is on average about 2-3 greater. Similar to running at 1300 on other kernels. Battery life is much improved over the kernel in eugenes ginger clone rom.
Sent from my SAMSUNG-SGH-I897 using Tapatalk
I just flashed it over SetiroN 1.5.6 and can see a speed difference already. 1200 O/C is perfect, I really like the kernel. Working great on Darkys 7.0.1
I too just installed over Darky's 7.0.1, bit more speed is noticable but i mainly did it for the possibility of better battery because right now thats all i am after.
i just installed but i want some more about voltage control
how can i modified that option?
thx a lot!
Hello, first of all this is my first post and thread. I have read the rules and searched for a similar thread. I am not stupid and I know how forums work. Now my question is: Which is the most performant kernel for the MT4G?
Know to be more specific, I am looking for a kernel which a very high OC and UV rate. I want something that can easily manage clock speed when it needs it the most. I am interested in genereal boosts of speed, higher I/O managing speeds, better gaming experiences and a longer battery life. I know that the kernel doesnt do all of that but it has a major impact those aspects. I am running CM7 nightly 144. Im hesitating between Faux123 Cm7/AOSP 2.6.35.13 kernel (http://forum.xda-developers.com/showthread.php?t=1113697) and thederekjay 2.6.35.13::demonSPEED INSANITY kernel (http://forum.xda-developers.com/showthread.php?t=1113554). I appreciate anykind of constructive feed back
I personally use demonspeed-insanity. It'll clock up to 1.8 atm. Couple that with the SMARTASS governor and you get a pretty decent balance of battery life to performance.
can't go wrong with either kernel, i've used both and their both outstanding in performance and battery life.
Sent from my HTC Glacier using XDA Premium App
Thanks for the feedback guys . I'll probably try both of them. I'll post some quadrant benchmarks and battery life results.
Faux 123 1.0.7 is the best IMO, great uv and quadrant scores, got 2600+ on stock and battery life is great.
I have used both kernels and got great battery life from each one. I prefer Faux's kernel for AOSP roms, and thederekjay's kernel for MIUI roms. Faux updated his kernel to OC @ 2.03ghz and its blazing fast
Faux's all day!!!!
He has put in the most work and has the best performance by a wide margin.
Please share
1. your favorite governor (do you use any different governor on different profiles?)
2. your voltage parameters
3. Your benchmark using quadrant
Thanks
No one wants to play?
Maybe like me, they have no idea what you are talking about
What is a governor?
What voltage do you mean?
My quadrant score is 3900 ish
Thanks for the reply, I don't think I'm good enough to explain but, in a nutshell,
A governor is a a piece of code in the kernel that decides on the cpu speed. each kernel has multiple governors
voltage is where you can decide what voltage is delivered to your cpu at certain frequency. undervoltage will usually help you save battery. we have to pay attention not to go too low or it phone will freeze
download setcpu it will all become clearer
I will give this another bump before letting it die
Even I would be intrested in sharing this
currently I am using CF root with ondemand and its working all good
FM kernel with interactive. I find my phone snappier with this governor. I liked it the most with smartassv2 on Abysssomething (don't remember now) kernel, but too many teething problems with this one, had to revert to FM. I'll give it another shot soon though.
pjm77 said:
FM kernel with interactive. I find my phone snappier with this governor. I liked it the most with smartassv2 on Abysssomething (don't remember now) kernel, but too many teething problems with this one, had to revert to FM. I'll give it another shot soon though.
Click to expand...
Click to collapse
Do you use any additional profiles with Interactive?
Nope, I like the way it is.
pjm77 said:
Nope, I like the way it is.
Click to expand...
Click to collapse
Have you tried InteractiveX? Or, better yet, know the differences between the two? I am currently using smartassv2, FM kernel and have no complaints but would be interested if there was something a bit snappier when opening an app (I still get a bit of lag if I quickly select an app after unlocking the phone).
Yes, I've tried InteractiveX and OndemandX - they're both absolute rubbish (at least from my point of view). Both responsiveness and benchmark results were dismal (2800-3300 quadrant advanced). These are governors for anally retentive battery life lovers. Nothing wrong with that itself but beats the purpose when buying state of the art top shelf performance smartphone IMO.
Good to know. I appreciate the advice. Does that mean you also tried smartassv2 with the FM kernel? Any discernible difference between that and interactive, if you have? And sorry for all the questions but it saves me the trouble of trying them!
I just flashed the 1.3 FM a moment ago. Now running 100-1704 smartassv2, haven't played with voltages yet. Responsiveness in terms of screen scolling, lags & stutters seems better than 200-1400 interactive. Performance in Quadrant Advanced and Nenamark2 seems a tiny bit worse (but I don't really care about that, I use benchmarks only to roughly estimate, smoothness is what I'm after). I can't give you direct sources because I don't remember, but having spent several hours digging last weekend I concluded that for people who put performance slighly over battery life governors to be considered are interactive, smartass(v2), savagedzed and performance. Funny enough - I'm getting consistently worse benchmarks on performance governor on all kernels. I wonder why?
Thanks again. I will play around with some of the governors and settings to find the right fit. I think I will try savagedzen next but I am pretty happy with smartassv2 and may just stick with it.
Handy explanation of most of the governor options available in custom Note kernels: http://forum.xda-developers.com/showthread.php?t=1369817
AND
http://forum.xda-developers.com/showthread.php?t=1242323
Smartassv2 and vr. After reading a bit about it they seem to be the best for performance and balanced battery life.
i share with you my SetCPU config, voltage ...
it's very stable for me. It's not performance oriented but battery friendly.
what you think ?
EDIT : I use AbyssNote Kernel 1.2
I'm getting nice results here on FM Kernel 1.3. 1704mHz (1375mV) - 100mHz (775mV), lulzactive governor. 5000-5872 in Quadrant advanced, 32-35 in Nenamark2. Battery life good with low to med usage, poor when playing games, running satnav etc. - hardly a surprise We'll see about stability but so far so good.
This thread is finally picking off ! thank you all
I am currently on FM 1.3 and preferring lulzactive
I don't use any over clocking I guess I don't dare. is it safe?
I think i'm pretty aggressive with under voltage i'm running 1175mv at 1400mhz and 775mv at 200mhz. For some reason my phone freezes any time I use the 100mhz no matter the voltage .
Can you share the whole voltage for a comparison ?
with all this I can hardly get a full day of use with my battery but I guess I'm a pretty heavy on usage. no gaming or anything extensive but wifi-browsing-emails-3g-bluetooth all day
ArcticCat said:
For some reason my phone freezes any time I use the 100mhz no matter the voltage .
Click to expand...
Click to collapse
I read on some other kernel thread that Samsung's implementation of the 100mhz step is incomplete/buggy. That's probably why it doesn't work properly.
Can someone recommend good kernel, for tw rom, good performance, also battery and with no sods with best stability, im new here and saw many kernels with oc 2.8 GHz and undervolting, best battery and etc, so tell me your oppinion
Fulfen said:
Can someone recommend good kernel, for tw rom, good performance, also battery and with no sods with best stability, im new here and saw many kernels with oc 2.8 GHz and undervolting, best battery and etc, so tell me your oppinion
Click to expand...
Click to collapse
It is a hard question but the answer is pretty simple. What is good for my phone does not necessary good for yours. Need to try it yourself.
And for overclock kernel don't use overclock setting all the day.Higher clock means higher battery usage.
Fulfen said:
Can someone recommend good kernel, for tw rom, good performance, also battery and with no sods with best stability, im new here and saw many kernels with oc 2.8 GHz and undervolting, best battery and etc, so tell me your oppinion
Click to expand...
Click to collapse
It depends on what u actually need. OC wouldn't be very stable for example. If u don't want a lot of customization and a stable kernel try lean kernel if you like more features try n3. They are actually all pretty good I tried every kernel and haven't had issues. At the end of the day u will have to look yourself what fits u and your phone best. If you need some info about kernels search for kernel explanation. Got help myself not 2 long ago
Hey guys.
Looking for a good kernel for my G2(info in sig) ... Looking for a good overclocking kernel, What do you use?
Any recommendations?
Dorimanx allows you to overclock to 2.8 ghz but what are you gonna use that for? The phone gets extremely hot in very short time. What is it that 2.8 ghz can do and 2.26 ghz can't?
Sent from my LG-D802 using XDA Premium 4 mobile app
Dorimanx is very good if you want to overclock it and keeping battery drain at good level.
Best for me is from bruce.Is absolutely amazing and very snappy...
Thanks guys, Is Dorimanx good for everyday usage too?(without overclocking)
iam using dorimanx 5.8 for 2 days now and its stable until now. no issues at all.
but there is one thing to know about this kernel. it offers alot of options via stweaks but its recommend to use the profile settings that are comming with the rom. they are most stable.
I've used Dorimanx for months now , but switched to Bruce2728 kernel ,and i stay with it.
Very fast , smooth , no lags and very good battery life.
I would recommend bruce's kernel that can be found here.
Fast and reliable, good battery life.
ATOJAR said:
Hey guys.
Looking for a good kernel for my G2(info in sig) ... Looking for a good overclocking kernel, What do you use?
Any recommendations?
Click to expand...
Click to collapse
Can't beat dorimanx for jb or kitkat. He's a very hard working guy. He never stops improving things.
Simple Kernel v6 overclocks to 2.5GHz. Simple means only Interactive governor included. Works well. 1%/3hr standby. Testing Vellamo bruce2728's kernel rules in multithreading even without overclocking.