Most stable/consistent kernel [Zedomax] - Samsung Epic 4G Touch

I spent past 5 hours testing Stock, LostKernel, and Zedomax kernels for stability and performance, all using ViperROM 2.2 as the testbed. I ran and logged Fps2D stdev and Quadrant scores 10 times and compared the averages.
Test setups:
Stock @ 1.2GHz (conservative/noop)
LostKernel Std 1.0.2.2 @ 1.2GHz (conservative/noop)
LostKernel Exp 1.0.0.4 @ 1.6GHz (conservative/noop)
Zedomax v6.02 Beta @ 1.2GHz (conservative/cfq)
Zedomax v6.02 Beta @ 1.6GHz (conservative/cfq)
Test results: Average Fps2D stdev
Stock 1.2GHz: 4.16
Zedomax 1.2GHz: 3.97
Zedomax 1.6GHz: 3.67
LostKernel 1.2GHz: 8.43
LostKernel 1.6GHz: 6.09
Test results: Standard Deviation in quadrant scores
Stock 1.2GHz: 527 (3542 average)
Zedomax 1.2GHz: 399 (3302 average)
Zedomax 1.6GHz: 268 (4229 average)
LostKernel 1.2GHz: 801 (3393 average)
LostKernel 1.6GHz: 627 (4526 average)
Zedomax kernel is producing the most consistent benchmark results (using conservative governor, the default ondemand was horrible). Stock kernel is bit less consistent as Zedomax but is still pretty stable. LostKernel on the other hand, while sometimes giving the fastest benchmarks, is like a roller coaster. I found that stable benchmarks directly translate to a much more fluid and enjoyable phone experience.
Now, I haven't tested the long-term stability, effect on LoS, battery life, performance under UV, but those can be tweaked and tuned regardless of your kernel/rom setup. So, feel free to test that for yourself. Have fun

Please close this thread. You realize that benchmarks are for little kids looking for numbers and do not signify any real life performance right? Btw you did not test the kernel on different ROMs.The LOStKernel is meant for stability performance and battery life, the version with the 1.6ghz OC is not stable so i don't know what you're looking for when they call it "experimental".

AsinX said:
Please close this thread. You realize that benchmarks are for little kids looking for numbers and do not signify any real life performance right?
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While OP might not have much real world value to some, your post on the other hand has no value at all. Share your personal experiences and stability observations or gtfo. Also, numbers do matter... your post count is a good example.
AsinX said:
Btw you did not test the kernel on different ROMs. .
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Click to collapse
I tested multiple versions of StarBurst, viperROM, and stock ROMs with almost all available kernel versions of Zedomax, LostKernel, and stock. Results in OP are more or less same across all.
While benchmarks are not ideal for testing real-world performance, they do give a good idea of what to expect. What's most important is the ability for a phone to deliver consistent results with least deviation regardless of how many times you run certain benchmark, which *is* a very good indicator of stable performance. I've ran multiple ROM/Kernel setups and can personally vouch that observations in OP perfectly reflect the stability I was experiencing with those kernels.

I think benchmarks are fun to post and talk about.
Samsung Galaxy S II

JUST Another guy with little man syndrome!
frifox hes just a smart ass like everyone else, this whole xda site has lost its meaning!
Just check out my thread under general WOW ZEDOMAX KERNEL BATT LIFE
It should be interesting, cause ive completely lost it with this **** anymore.
those that cant wait to hate hate hate have little man syndrome!

AsinX said:
Please close this thread. You realize that benchmarks are for little kids looking for numbers and do not signify any real life performance right? Btw you did not test the kernel on different ROMs.The LOStKernel is meant for stability performance and battery life, the version with the 1.6ghz OC is not stable so i don't know what you're looking for when they call it "experimental".
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Click to collapse
Posts like this are unnecessary he's simply sharing his experiences.. Isn't that one of the the reasons xda was created to share our experiences and knowledge with fellow members.. Why do people shoot threads down so quickly it chases people away.
Sent from my SPH-D710 using xda premium

AsinX said:
Please close this thread. You realize that benchmarks are for little kids looking for numbers and do not signify any real life performance right? Btw you did not test the kernel on different ROMs.The LOStKernel is meant for stability performance and battery life, the version with the 1.6ghz OC is not stable so i don't know what you're looking for when they call it "experimental".
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Click to collapse
Really? Please close your account
OP spent who knows how long comparing different kernels ay different clock speeds on one of the most popular ROMs. If you want results on the other ROM then run the tests and maybe if you ask kindly enough OP will include your findings!

I agree that quadrant scores mean nothing and can be easily manipulated.
Helpful information would have been average battery life, instances of LOS, most stable overclock/ undervolting, etc

thank god we have knowitall forum police.
idiot.
AsinX said:
Please close this thread. You realize that benchmarks are for little kids looking for numbers and do not signify any real life performance right? Btw you did not test the kernel on different ROMs.The LOStKernel is meant for stability performance and battery life, the version with the 1.6ghz OC is not stable so i don't know what you're looking for when they call it "experimental".
Click to expand...
Click to collapse

I think your testing proves that if you don't mind 1.2GHz the stock kernel is the best. I am running the Zedomax kernel and no Los for 2 days but battery life is horrible.
Sent from my SPH-D710 using xda premium

I have really been enjoying my ET4g. I have been around since the Touch Pro, back when everyone was trying to get Donut to run on the Raphael, and I remember how much of a pain it was getting the linux kernel to run properly. These Devs on here are incredible with how well they have compiled and worked as hard as they did for a FREE service and with the fact that I have owned the Moment, the Epic 4g, Both nexus devices, and Photon (I felt true self loathing in that instance), I am appreciative of the OP. Im running LoStKernel at 1.3 (my E4gT isnt stable at anything above 1.452 on any kernel, on any ROM) and I regularly have 1.5 days of life with moderate to heavy use and WiFi and GPS on constantly. I work for RS so the Epic is used for demo's regularly, mostly to show of the sAMOLED and the smoothness of the phone, and while I prefer LoStKernel, I do have to say way to go to ALL Devs! Keep up the good work! *Heads back to rock he crawled out from*

What about stock with Tegrak at 1.4 and 1.6?
Sent from my SPH-D710 using xda premium

Zedo has the worst case of LOSes. FAIL!

akarol said:
Zedo has the worst case of LOSes. FAIL!
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Click to collapse
OP states he/she didn't test for LOS. I never had LOS on Zedo (or any kernel for that matter).
Sent from my SPH-D710 using xda premium

JohnCorleone said:
What about stock with Tegrak at 1.4 and 1.6?
Sent from my SPH-D710 using xda premium
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Click to collapse
I know some processors tolerances are different than others, even if it is the same processor from the same batch but I am wondering if anyone has any idea why mine will just freeze if I even consider 1.4ghz or beyond. I mean, I had the OG Epic at 1.452 as a daily. I know it is a totally different animal now with the GSII but I am still a little weirded out that I havent seen any other reports of inability to overclock

loveableterrorepic4g said:
I am wondering if anyone has any idea why mine will just freeze if I even consider 1.4ghz or beyond.
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Click to collapse
Try overvolting. I actually had to increase voltage on mine to keep phone stable. Of course that reflected badly on my battery life so I decided to stick with 1.2GHz, which is already more than enough for a daily driver :-D

I appreciate it. I will give it a shot. My phone is a weird one with some of the mods but so far everything is great. I might give OV a try though! Thanks!

Related

[KERNEL]1.28Ghz?!

Just wondering if anybody has tried this kernel yet? Found it over on AndroidMobileJunkie.com (Followed a link in somebody's sig here n XDA that said 1.28Ghz so naturally I was curious lol) Anyways, here's the link for the post over on AMJ. http://forum.androidmobilejunkie.com/threads/kernel-ziggy471-droid-incredible-22-oct.11/
yea ziggy's kernel. It's been in discussion in both of the Desire rom port threads. 1.28 is very rough on the processor though, and mostly unstable for a lot of people's phones (mine included), even ziggy admits it's a risky business, but he has proven it is possible.
I am so tempted to try this, but I'm afraid to fry my phone. My go big or go home mentality may make me give in. Wish there was someone who posted on the thread link
I ran it. No problems a 1.28 but really didn't use it long. Here's my Quadrant post in the Desire Z port thread:
http://forum.xda-developers.com/showpost.php?p=8775977&postcount=168
X
I'd imagine that clocking the processor that high wouldn't make much difference than say, 1.19GHz.
In fact, in plenty of ROMs I've tried, anything clocking over 1152mhz actually gives me a decrease in my quadrant scores. Not to say its not a stability issue - I'd assume that most Snapdragons actually clock higher than 998mhz, but then are reduced because that's baseline performance, anything less than 998mhz would get kicked.
I've never had a ROM crash, even running at 1.19GHz, but didn't notice any performance gains, plus, unless you just happen to get a chip that is capable of 1.28GHz no problem, it's probably near bottle-neck anyway.
And Quadrant has several variables way outside of clock speed that can pull 1800's, including just your flavor ROM.
Bottom Line: It's not worth frying your phone just for a barely-existent performance gain. If you happen to have a processor that is incapable of stability at 1.28GHz, you might fry out some transistors, then get stuck with something that freezes if you clock it over 700, let alone the 998 stock.
For me personally 1.28 is no improvement over 1.152. In fact, it gives me worse benchmarks.
sorry for repost
I gave this kernel a try and I actually prefer the newest HTC 2.6.32.17 charging time has significantly decreased battery life has increased and the performance is really responsive and smooth. My quadrant scores are nothing impressive pretty average but I would rather all of the above than a high quadrant.
I tried this kernal and my camera stopped working...
HeyItsLou said:
I gave this kernel a try and I actually prefer the newest HTC 2.6.32.17 charging time has significantly decreased battery life has increased and the performance is really responsive and smooth. My quadrant scores are nothing impressive pretty average but I would rather all of the above than a high quadrant.
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Click to collapse
Lou hit the nail on the head. I love the .17 kernel. Im using the new guy with great performance, battery life, charging, and neat transitions. its like a new phone.
I'm using this with a vanilla froyo ROM and my battery life is amazing. Haven't noticed any freezing or any program not working.
Wow!
Thanks for all the replies guys, I think for now I'm gonna stick with the stock kernel also, I just remember back when I used to run KxK's kernels seeing great benchmarks and battery life I was always wondering if there were any faster out there lol
dimebagdan65 said:
Thanks for all the replies guys, I think for now I'm gonna stick with the stock kernel also, I just remember back when I used to run KxK's kernels seeing great benchmarks and battery life I was always wondering if there were any faster out there lol
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Click to collapse
There's always faster, the question is will they work. lol
When I'm running the newer Sense ports, HD or Z, I can only run 1.113, no matter how much or little voltage I give it. When I'm running an older one, I can go all the way up.
As for stability at 1.28G, I need to work on the voltage more, to find the sweet spot, I just did it 'cause Jugs said one of his Bravo buds had it working, so I had to try.
I'll keep playing with it if people are still interested, otherwise, I'll just keep at the lower speeds.
Z
Just loaded up your AOSP on Ruby 1.1.4. Running great, 1600 in Quad at 1ghz. Everything seems really smooth. Are the voltages undervolted at 1ghz? Maybe you could start your own thread?
Nevermind...found it!
ziggy471 said:
There's always faster, the question is will they work. lol
When I'm running the newer Sense ports, HD or Z, I can only run 1.113, no matter how much or little voltage I give it. When I'm running an older one, I can go all the way up.
As for stability at 1.28G, I need to work on the voltage more, to find the sweet spot, I just did it 'cause Jugs said one of his Bravo buds had it working, so I had to try.
I'll keep playing with it if people are still interested, otherwise, I'll just keep at the lower speeds.
Z
Click to expand...
Click to collapse
By the way, my post wasn't meant to disrespect your efforts to 1.28GHz, I'm just giving fair warning that someone could possibly burn out their phone if they jack it up all the way. When I'm ready for an upgrade, I'll probably put this thing to the max.
Thanks Ziggy
hajabooja said:
Just loaded up your AOSP on Ruby 1.1.4. Running great, 1600 in Quad at 1ghz. Everything seems really smooth. Are the voltages undervolted at 1ghz? Maybe you could start your own thread?
Click to expand...
Click to collapse
What AOSP kernel??? I only see one kernel, and it references skyraider, which leads me to believe it is a sense kernel
edit: I am dumb. It is a different thread on the same site as listed above
http://forum.androidmobilejunkie.com/threads/kernel-ziggy471-droid-incredible-aosp-23-oct.24/
rmaccamr said:
By the way, my post wasn't meant to disrespect your efforts to 1.28GHz, I'm just giving fair warning that someone could possibly burn out their phone if they jack it up all the way. When I'm ready for an upgrade, I'll probably put this thing to the max.
Thanks Ziggy
Click to expand...
Click to collapse
I didn't take it as such, and I agree with you fully. I prefer somewhere between 1.113 and 1.15. That's the reason I included the init script to set the max at 1.113, which I find very stable and fast, hell I'd say 1865 quad with ID's Z port isn't too shabby at 1.13.
I should be able to get 1.28 more stable with playing with the voltages, it's just that takes time, and I wasted too much this morning doing both AOSP INC and Evo kernels, so I'm worn out for awhile on kernels. I still need to fix the Evo for puertoblack, since it appears I left the debug port out, so no adb for it. lol
Z

Leedroid but what kernel

Hi all,
I've got Leedroid and would like to know how the hell people get the 3000+ scores on quadrant ?
I've used most of the roms with a lot of the kernels but the most i get is around 2500 - 2600 , i've heard that the kernel by Kamma is a good one but i'm at a loss as to which one i should use.
So if anyone could point out which one i could use for .
1. Stability.
2. Battery saving.
3. Benchmarking (without smoking my device of course)
Any answers would be appreciated.
Thanks.
dladz said:
Hi all,
I've got Leedroid and would like to know how the hell people get the 3000+ scores on quadrant ?
I've used most of the roms with a lot of the kernels but the most i get is around 2500 - 2600 , i've heard that the kernel by Kamma is a good one but i'm at a loss as to which one i should use.
So if anyone could point out which one i could use for .
1. Stability.
2. Battery saving.
3. Benchmarking (without smoking my device of course)
Any answers would be appreciated.
Thanks.
Click to expand...
Click to collapse
the first thing you need to understand is quadrant is ****, it is not an acurate indication of the speed of your device, a few devs have made kernels that trick quadrant into giving it massive scores, but in reality there kernels are not the best that being said, you wont find a better kernel for stability or speed than leedroids one, it is flawless you can download it here
http://www.multiupload.com/U2ECLTRT7V
AndroHero said:
that being said, you wont find a better kernel for stability or speed than leedroids one, it is flawless you can download it here
Click to expand...
Click to collapse
Have you noticed much difference between 2.0.5 and 2.0.6 kernels? The LeeDroid thread is getting very lengthy to read through these days to catch up on new updates lol!
RobSimmo said:
Have you noticed much difference between 2.0.5 and 2.0.6 kernels? The LeeDroid thread is getting very lengthy to read through these days to catch up on new updates lol!
Click to expand...
Click to collapse
Yeah the new one is based on the latest kernel source, with the 1.75 libs,
Sent from my Desire HD using Tapatalk
Tbh I use leedroids newest one an its really good, quadrant gets 2500 +
The device is smooth as silk, bit then again it always was.
I didn't know that quadrant was pants, I thought it was a good benchmarking tool.
Confirm that the newest kernel of Lee is the best!but in a few days he prepare a new awesome BFS kernel...
Mmm badly ****ed scheduler. My favourite.
If you want good quadrant, buy the paid app which gives higher scores than the free one. Do the I/O hack which core and lee droids use. Use Leedroid kernel at max freq, performance governor, and finally run it in airplane mode.
Follow all those steps and you will get around the 3000 score.
You should state if you use quadrant standard or advance when posting results as they do differ. Otherwise it's like comparing oranges to mandarins. They are both orange but one is always bigger.
Sent from my super slick Android device.
dr.m0x said:
Mmm badly ****ed scheduler. My favourite.
If you want good quadrant, buy the paid app which gives higher scores than the free one. Do the I/O hack which core and lee droids use. Use Leedroid kernel at max freq, performance governor, and finally run it in airplane mode.
Follow all those steps and you will get around the 3000 score.
You should state if you use quadrant standard or advance when posting results as they do differ. Otherwise it's like comparing oranges to mandarins. They are both orange but one is always bigger.
Sent from my super slick Android device.
Click to expand...
Click to collapse
Yea it's just the standard version of quadrant, I thought that it would do the job.
Also i don't want to trick it or actually buy an app just so it can give me higher scores, that's not actually helping at all, i'll try the airplane mode to see if that helps, my phone is rapid anyway so it's only for my own satisfaction and to see how high i could get the score to go to.

[Q] Benchmark questions!

First off I'm fairly aware of the fact that benchmarks are not accurate representations of the day to day real life usefulness of the handset.
That said, I used both linpack and quadrant standard edition for the first time tonight while testing another kernel with my current rom (which is cm7, ggingerbread-6).
At the conclusion of my testing it was very obvious that one kernel completely outclassed the other in a benchmarking situation, however something else became apparent that leads to this post.
If I follow and believe everyone else's benchmark scores, even those posted an hour earlier in the same kernel thread, then I might have the slowest Evo on planet earth.
I see other users of the same rom and kernal posting scores which are never below 1500 in quadrant, I saw one instance of 1300 but nonetheless, even overclocking to 1075 I can barely break 1100 and usually fall just below that. Sadly enough on the "slower" of the 2 kernals I was barely surpassing 900.
Now on the linpack side of things I don't have any comparative scores to judge against, but ill post what I received anyhow for information's sake. On the "faster" of the two kernels (the one that came prebuilt into the rom) I was getting between 33-34, on the new kernel I was testing I was getting between 19 and 22, these are all "mflops" of course, whatever that may be.
Someone give me some information or advice here! Do I just happen to have a slow evolution, or are others either exaggerating or using some trick/mod/tweak I'm royalty unaware of??
Thanks in advance!
some people brag, some people cheat, most have low scores, few have high, there isn't a very good baseline and the benchmark programs dont scale very well at all, I have run 1800 scores and I have run 600 scores, guess what. both roms were smooth and you wouldn't have been able to tell a difference, what does that mean? do we believe the benchmark programs? are they spitting a random number at us? who knows! dont believe them, be satisfied with how your evo is running and if it's not running very well then try a different kernel or rom, keep trying new ones until your satisfied, only then will some benchmark program output not mean a thing
Most of my Quadrant benchmarks with aftermarket ROMS+kernels have been in the 1100-1400 range, using VaelPak and various kernels to get most of the better scores there. The highest I've had was CM7RC1 with the SnapTurbo kernel, got an 1821. It was unusable, though.
I've come to the conclusion that the benchmarks aren't as important as battery life, especially with the Evo.
Biggest reason for the huge difference in numbers? Different versions of the app. The dev changed how it rates phones.
Sent from my PC36100 using XDA App
Thanks!
Explained. I knew they were totally not concurrent with the outward performance and usability of the device, and for what its worth while I've only ever flashed a total of 3 roms, this one is perfect for me and I seem to be one of the rare few with no problems whatsoever, everything works exactly as I would expect it to. So yes, l never feared my device was suddenly slower now that I knew the all knowing superultrabenchmark number.

what is Quadrant really for??

Okay I have been using the quadrant and been hearing about it with ROMs. I have had Quadrant scores range from 1000 to about 2500 so what does this really mean exactly? My reason for asking is I came from a custom ROM where my quadrant scores were close to 2200 all the time. Then I flashed the stock Ec05 ROM and my scores are in the low 1000. BUT.....I do not see any speed difference with either ROMs. I think the stock one is a little more stable and just as fast as the custom one I was on where my quadrant scores were sky high. Can someone please explain to me why exactly one would use the quadrant score for??
Quadrant is VERY inaccurate
and is just a measure of people's E-penis
iSaint said:
Quadrant is VERY inaccurate
and is just a measure of people's E-penis
Click to expand...
Click to collapse
LOL..That was funny. I would just hate to give up the stock ROM because it is so stable and (fast enough) to have a custom ROM with issues and a high quadrant score. I honestly think I will be sticking with the stock ROM. I hope somebody will be kind enough to make some kernals or themes to work with it. If not oh well. Stability over quadrant score for me.
iSaint said:
Quadrant is VERY inaccurate
and is just a measure of people's E-penis
Click to expand...
Click to collapse
I came here to post exactly this.
Get Quadrant Advanced to see exactly why it's BS - it's all IO scores, especially on some ROMs that use a little DB trick (no offense, if you guys still use it ) - then switch to Smartbench. Smartbench is a much more accurate measure, and the dev has actively reached out to Epic users in testing his latest version.
I was wondering about this myself. Think I'm going to check out Smartbench. Thanks k0nane for the tip and that awesome rom of yours
WORDMAN713 said:
I was wondering about this myself. Think I'm going to check out Smartbench. Thanks k0nane for the tip and that awesome rom of yours
Click to expand...
Click to collapse
Thanks for your support! Keep in mind 2010 is designed for single-core phones, and 2011 for dual-core.

ics overclocked!

this is just for those who wish to see a bit more snappyness in your ics....
First i have no idea if this will work on all roms, but im using the PHANTOM rom ( 4.0.4 ) and using the tergat paid version.. im using the kernal that came cooked into the rom....
i just loaded the overclock module, and set it to 1.54Ghz.. i did not change the voltages at all..
doing this i saw an increase in about +200 points testing with antutu benchmark...
im advance i apologize for wasting fourm space but just figured since i havent seen anything on overclocking ics yet, id just show how i did it..
just something to tinker with..
There are threads and this has been discussed before. Thanks for trying though.
Sent from my SPH-D710 using Tapatalk 2
of course.... always a thread mixed within the 1000s out there.
one thing i noticed is on the antutu it shows where people have post thier results... how on earth are some of them overclocking to 1.9ghz and 1.75hz.. scoring soooooo high?! for example im at 1.452ghz scoring say 7200-7300 and some are at 1.452 scoring 12000-15000... seems kinda high to me...
Sent from my SPH-D710 using xda app-developers app
chris-allen said:
of course.... always a thread mixed within the 1000s out there.
one thing i noticed is on the antutu it shows where people have post thier results... how on earth are some of them overclocking to 1.9ghz and 1.75hz.. scoring soooooo high?! for example im at 1.452ghz scoring say 7200-7300 and some are at 1.452 scoring 12000-15000... seems kinda high to me...
Sent from my SPH-D710 using xda app-developers app
Click to expand...
Click to collapse
Lets just say they are ways to cheat the benchmark test. I never did and not sure exactly how to but I know I have seen people talking about it.
ace0603 said:
Lets just say they are ways to cheat the benchmark test. I never did and not sure exactly how to but I know I have seen people talking about it.
Click to expand...
Click to collapse
I've never understood why someone would want to fake a already meaningless benchmark number. It screams I'm over compensating
Sent from my SPH-D710 using xda app-developers app
i agree..i was just wanting to overclock. little to sed if it would make some of the ics Roms any snappier.. Alot of Ics is being released on quad core phones and phones with slightly snapier processors.. but i thought taking my 1.2ghz to say 1.4ghZ would polish the speeds of ics on my phone.. well and it does!! just gotta use tegrak..
seems like 1.452 is the best.. im not good on messing with voltages so i stay away from too much change. seems lime @ 1.4 i get a 200-400 point increase, but at 1.6ghz it seems to decrease 200-250points and 1.7ghz locks up 1/2 way through the benchmark..
got me.. i just like tinkering around with it... i tried it on calkulins El29 rom and holy **** it screams!!!
chris-allen said:
i agree..i was just wanting to overclock. little to sed if it would make some of the ics Roms any snappier.. Alot of Ics is being released on quad core phones and phones with slightly snapier processors.. but i thought taking my 1.2ghz to say 1.4ghZ would polish the speeds of ics on my phone.. well and it does!! just gotta use tegrak..
seems like 1.452 is the best.. im not good on messing with voltages so i stay away from too much change. seems lime @ 1.4 i get a 200-400 point increase, but at 1.6ghz it seems to decrease 200-250points and 1.7ghz locks up 1/2 way through the benchmark..
got me.. i just like tinkering around with it... i tried it on calkulins El29 rom and holy **** it screams!!!
Click to expand...
Click to collapse
Keep in mind that most of the newer phones being released in the US are still dual core. I believe the reason for this is for the LTE support. And even single core phones can run ICS without much of a hickup so I wouldnt worry too much about overclocking just to gain some performance in ICS. The devs are working hard to tune it up. Just follow Phantoms thread. And I am sure once we get the official release and/or source drops we will see even greater performance tweaks done to ICS for our phone. Its just a time game....

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