yashsingh1/xdaforums huggingface dataset:
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Wont boot :(.

Keep getting stupid errors in logcat for no reason like these below :(

Could not stat dex cache directory '/cache/dalvik-cache': No such file or directory

I/dalvikvm( 9054): Unable to open or create cache for /system/framework/voip-common.jar (/cache/dalvik-cache/system@framework@voip-common.jar@classes.dex)

D/dalvikvm( 9054): Unable to process classpath element '/system/framework/voip-common.jar'

E/keystore( 8987): chdir: /data/misc/keystore: No such file or directory

I/audit_log( 8982): Previous audit logfile not detected

E/audit_log( 8982): Could not open audit log file /data/misc/audit/audit.log : No such file or directory
[Galaxy S 4 i9505 Original Android Development] franzyroy:
In Ktoonsez we trust! ;)
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
ITS BOOTED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ok, so now I need a good benchmark testing app for reads and writes, and someone that can run that app on there phone so I can compare. And trust me no one can test the new kernel unless you are a developer, the process is way to complicated. So let me know guys what app is a good one to test data speeds so I can see if this is worth the hastle :D
[Galaxy S 4 i9505 Original Android Development] Formhault:
I guess I don't fall into the cathegory of people that give names to anything else other than pets. :D :cyclops: :silly:

I've seen youtubers give even their phones names... lol

---------- Post added at 09:19 PM ---------- Previous post was at 09:15 PM ----------

Very glad to hear you've done it, mate!

For benchmarking purposes, I advise you use AndroBench, as it's an excellent app for that, hands down.

But don't rely on me for comparision tests. My phone's acting up, guess I need a clean install.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Do you have a saved screen shot of a Quadrant maybe so I can see the I/O number?
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
As [MENTION=4129455]Formhault[/MENTION] said, AndroBench is good, CF-Bench. is pretty thorough as well.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Your on AOSP right? Run an Androbench for me then. I just did an Antutu and got 2192 on AOSP on I/O, cant remember if that was any good.
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
My I/O number on Quadrant is 3882
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Mine is 6758 on Quadrant with KTGaming profile loaded.
[Galaxy S 4 i9505 Original Android Development] djsky2011:
Is that with the new file system?
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Quadrant 3002

AnTuTu 1782

Both on KTGaming for comparison.

Running AndroBench, then will run CF-Bench
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
AndroBench
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Here is mine. Ktgaming profile again. And on AOSP. R u on AOSP?
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Yep, LiquidSmooth
[Galaxy S 4 i9505 Original Android Development] Formhault:
Nope, sorry. I would try and provide some benchmark results right now, but I fear they would hardly be trustworthy, as my phone's been acting up a lot lately.
[Galaxy S 4 i9505 Original Android Development] djsky2011:
I'm going to do a bench now on andro bench, i'm on CM11
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Whoops, CF-Bench rebooted my phone. Either way though, all these were done with KTGaming, no script, and no other mods. Looks like a pretty significant improvement with what you've done.
[Galaxy S 4 i9505 Original Android Development] Formhault:
Compared to [MENTION=5292327]PiggySmalls502[/MENTION]'s test, it appears that performance is ~40% better on sequential read and ~900% on sequential write. Jesus!

Speaking of sequential write... copying files over from my PC to my S4's internal memory (or external SD card, which is class 10, by the way) is slow. Definetly lower than 10 MB/s (on both sides).

---------- Post added at 09:50 PM ---------- Previous post was at 09:47 PM ----------

3 MB/s write on EXT4 vs. ~30 MB/s write on F2FS... That's... wow...

But hey! Hang on a second!

I remember I compared my S4 (at the time it was running SlimBean, as it was October/November, I think) to the Note 3 in terms of flash memory performance and the sequential write was definetly more than 3 freaking megs a second. :confused:
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Perfect. That is exactly what I am on. Totally 100% virgin though
[Galaxy S 4 i9505 Original Android Development] djsky2011:
Result on AOSP with latest KT gaming profile
[Galaxy S 4 i9505 Original Android Development] molochgrifone:
Carbon nightly 10.04 last kt on ktoonsified v5 profile no script. I wanted to test gaming profile but performance seems almost the same

Edit: here the screen on ktgaming

GS4 Patatatalkando
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
This is with androbench at defaults. The one on the other page was with a buffer size of 2048. Someone try andro with the 2048 buffer to see the difference.
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
2048 buffer
[Galaxy S 4 i9505 Original Android Development] djsky2011:
It is clear there have been improvements with this new file system. Results may vary depending on amount of apps installed etc. Generally better though and worth the effort
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Weird, not much of a gain at all vs. mine on F2FS when we are both at 2048 :(
[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Yeah, the different apps are all showing a pretty wide range of improvements, from awesome, to minimal.

---------- Post added at 03:19 PM ---------- Previous post was at 03:12 PM ----------

[MENTION=4325945]ktoonsez[/MENTION], I don't really know how you managed it, but while I was sitting here running benchmark after benchmark, exercising the pure awesome of your kernel, the fan in my home a/c came apart. So all I can figure is the overwhelming awesomeness from your kernel spread through my house, and the A/C couldn't handle it. Thanks bro! ;)
[Galaxy S 4 i9505 Original Android Development] djsky2011:
I don't believe Androbench is an accurate app, we should a customized test on antutu
[Galaxy S 4 i9505 Original Android Development] smeroni68:
The influence on general performance with F2FS must be seen with an overall bench... only I/O is not enought...

[MENTION=4325945]ktoonsez[/MENTION]: what did you format in recovery? Cache, Dalvik and Data?... just to know where test must highlight differences...
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
I have several!!

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[Galaxy S 4 i9505 Original Android Development] ktoonsez:
First thing I had to do is do the nasty format data from TWRP where you have to type "yes" before it does it (this formats the entire /data partition, I.E. /sdcard). Then had to manually format /cache because TWRP wasnt cooperating and kept formating it ext4.
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
My io scores on quadrant are 45xx - 54xx. If you have almost 7000 that's good :)

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[Galaxy S 4 i9505 Original Android Development] Formhault:
[MENTION=4325945]ktoonsez[/MENTION] but does the system feel snappier overall? As compared to when it was on EXT4... I know, ruling out placebo would be a pain, but perhaps you have the skill to overcome it?

And yeah, custom benchmark job in AnTuTu should be reliable, as well. AndroBench is reliable, too... it's one of the most accurate programs I am aware of. Alternatively, you can use A1 SD Bench to test the read/write speeds on the internal SD card.

Or perhaps hook up the phone to the computer and use CrystalDiskMark to take it to (another) extreme? But I think that option can be ruled out immediately, as I think the speeds degrade over USB anyway - at least on Google Edition, they seem to do :(.

EDIT: Hey, what about this?
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Those are from a full run? If u only do a I/O test only its much lower than the real number from running all tests.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
The ROM is flying thats for sure, not placebo at all, but I literally have ZERO apps installed except gapps, Antutu, Androbench and Quadrant. So that might factor in.
[Galaxy S 4 i9505 Original Android Development] Formhault:
I edited the post (otherwise it wouldn't really be me posting, right?). You may wanna check it out again.
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
I always did full runs on quadrant and always between 45xx and 54xx.

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[Galaxy S 4 i9505 Original Android Development] 9Lukas5:
[MENTION=4325945]ktoonsez[/MENTION]

Maybe you'll have a look here [RECOVERY][All-F2FS] TWRP-2.7.0.0 with All-F2FS support [11/03/14]

That's for the 2012 Nexus 7. The dev there provides a recovery installable zip file for formatting it to f2fs. I have seen during my experiments on my Nexus 7, that if I flash the recovery from that thread and select format cache it said "formatting using make_ext4", but after I flashed that given file, rebooted recovery and select format cache again, it said "formatting using make_f2fs". On my Nexus 7 I'm using it now on /system /cache and /data

About the benchmark results: I read that on a fresh installed ext4 system, the performance differences aren't that big to f2fs. The differences should be there the longer u use the devices with the installed system and produced data.

L
[Galaxy S 4 i9505 Original Android Development] djsky2011:
Maybe f2fs provides consistent read write speeds over prolonged usage
[Galaxy S 4 i9505 Original Android Development] saphirrot:
just did that benchmark too, running Brood´s latest Sabertooth Linaro Rom and Alucards Kernel from today..

noticed some huge read / write results in compare to you guys.. did that 2 times to avoid wrong results..
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Here is androbench back on ext4 with ktgaming. Only bad part is I guess is it my full blown backup of CM 11 that I just freshly installed 2 days ago. So its not old but a lot of apps.
[Galaxy S 4 i9505 Original Android Development] djsky2011:
I'm getting this ROM :)
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
[MENTION=4325945]ktoonsez[/MENTION]

Is there are way to get those scores too with cm11 and your kernel.. Damn those numbers are more than impressive.

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[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Can you post a link to this ROM? I would like to check it out, but I can't find it.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
I doubt brood made one for Verizon, if you got time see if u can find the ROM for Verizon i545
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
What is this rom? Cm11 with mods or pure aosp? Linaro builds are awesome I guess...

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[Galaxy S 4 i9505 Original Android Development] saphirrot:
yooo guys, i dont want to disrespect any dev or ktoon in here, i just wanted to show the results, because i really dont know why those results or that high compared to others shown in here. this was not an advertising or recommendation post up there, just a comparison.
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
Link to rom please.

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[Galaxy S 4 i9505 Original Android Development] PiggySmalls:
Looks like it's a unified build, so should be good for you to flash as well sir.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
No worries at all, some number were really low and then some were insane high, not sure whats up with the writes, they are crazy high. Im guessing it the ROM built with Linaro, I would guess any kernel would do that on that ROM :good:
[Galaxy S 4 i9505 Original Android Development] dr.wtf:
is it actually possible to have write speeds of 150mb/s on the s4? those results cant be right. this is not a freakin ssd in the phone...
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
That's what I'm thinking.. Something strange.

Sad that there are no jflte linaro nightlies :/

Is anybody able to compile a linaro cm11 nightly? For testing.

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[Galaxy S 4 i9505 Original Android Development] moesasin:
[MENTION=4325945]ktoonsez[/MENTION] I've been having so much trouble with audio stuttering on the GPE kernel. I've increased the read ahead, increased screen off mhz, and disabled hotpluging. This has minimzed any screen off stuttering, however i do get stuttering when opening notifications or resource intensive apps. I've been struggling with this problem for months and changing settings periodically. Do you have any recommendations?
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
No, you tried everything that would always fix it for everybody else, your not undervolted r u?
[Galaxy S 4 i9505 Original Android Development] franzyroy:
Great job!
[Galaxy S 4 i9505 Original Android Development] djsky2011:
Even brood is amazed by the speeds but he said it might be cached, I highly doubt this but really tempted to test his new sabermod builds
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
His new sabermod builds? Link please.

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[Galaxy S 4 i9505 Original Android Development] djsky2011:
www.broodplank.net/files/AOSP442-I9505-PreFinal-Sabermod_Linaro.zip
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
So this is pure aosp. Not cm11?

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[Galaxy S 4 i9505 Original Android Development] Formhault:
It's not impossible for the flash memory to reach speeds of 150 MB/s. But... just for a very short burst. Same goes for network traffic. If you use a monitoring program chances are you'll see very short bursts in the speed, way above the speed you thought your ISP is giving you. But that's not what matters - the average speed is what matters.

It is like a thermometer, you know. It has min / max displays, which show what was the lowest / highest temperature monitored, but the minimum one may be because of a very strong wind that occured for two seconds during one night, and the maximum one may be because of the sun which heated up the sensor for a few minutes every day... That doesn't mean min / max matters at all, lol.

Not the best analogy. And I think R.I.P English in some parts of this post. Jesus I suck at English right now :eek:
[Galaxy S 4 i9505 Original Android Development] !crazy:
I am not sure how good these fs benchmarks are, in regard to your vfs settings.

IIRC your dirty background ratio is set to something like 70% (of RAM in total.), what means dirty pages will be written to the 'disk' either when that threshold has been reached (>1 GB) , or when dirty_writeback_centisecs are expired (over three minutes is your value. Stock is like 5 sec).

It is very important here that your value for vfs cache pressure is very low IIRC, what means the biggest part of RAM cache is used for file system. This is also bad because when dirty background ratio has been reached, everything blocks until all these pages are written (very easy over one GB of data to be written.).
[Galaxy S 4 i9505 Original Android Development] Formhault:
YES! YES! YES!

Just like NTFS vs. FAT32 / exFAT / another fs I am missing? NTFS gets fragmented like sh*t, hence causing performance loss, whereas FAT32 / exFAT / another fs I am missing does this less frequently.
[Galaxy S 4 i9505 Original Android Development] moesasin:
No, i'm using v5 settings. Why does the audio stuttering happen on your kernel compared to stock? I'm not the only one having these problems, are we just a small sample who have trouble and the masses are enjoying this kernel with no issues? :eek:
[Galaxy S 4 i9505 Original Android Development] djsky2011:
Pure AOSP and f2fs maintains the speed which is why the file system is important
[Galaxy S 4 i9505 Original Android Development] Formhault:
Yep, I know.

I

think

file system-related benchmarks cannot be trusted 100%, just like performance benchmarks with apps such as AnTuTu and Quadrant... they're not

always

right. I can't stress this enough : back when I had the Motorola Atrix, there were two kernels : one yielded great Quadrant scores but had terrible real usage performance, another yielded awful Quadrant scores but was awesome in real life usage.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
V5 is heavily undervolted, at least for my phone, could be more on yours. Mine does that due to huge deep sleep so I can get 4 days without charging :good:
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
I had uv cpu and gpu but now I have no uv. Perhaps placebo but uv made the system laggier. At least gpu uv.

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[Galaxy S 4 i9505 Original Android Development] Misk77:
Interesting rom.

Hmm..

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[Galaxy S 4 i9505 Original Android Development] moesasin:
Lucky you, i'm jealous. Do you recommend another profile for stability over battery life? Should i just use stock?
[Galaxy S 4 i9505 Original Android Development] Misk77:
Look in tweaker shop forum.

But Hydra and project icarus - performance are really good for average use..and almost never let you down.. Undisputed are nice too.. Imo

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[Galaxy S 4 i9505 Original Android Development] aeroman:
+1

yeah thats right and my Feeling & experience.

but if the correct values ​​are once found, the Machine should fly smooth again. :D ;)

best regards

●Sent from my Galaxy S4-LTE√
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
I guess -10 uv on cpu should do ok but I guess the results are negliable.

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[Galaxy S 4 i9505 Original Android Development] aeroman:
a bit more brings something, keeps phone cooler (less drain), importent for Quads. ;)

regards

●Sent from my Galaxy S4-LTE√
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
But we don't know if -10 uv makes the system laggier..

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[Galaxy S 4 i9505 Original Android Development] dr.wtf:
fragmentation is afaik only an issue on hdds due to mechanical movement
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Fragmentation is a file system thing, not type of drive. My SSD on my PC gets fragmented running Win 7.
[Galaxy S 4 i9505 Original Android Development] dr.wtf:
right but your ssd doesnt get slower because of the fragmentation. defragging it would even make it slower so you dont have to care about fragmentation on ssds. its the same thing with the smartphone storage.
[Galaxy S 4 i9505 Original Android Development] ktoonsez:
Yep, you nailed it :good:
[Galaxy S 4 i9505 Original Android Development] rfrenz:
Here's an interesting article

This newbie went looking to see what you all were talking about and found this http://www.linux.org/threads/flash-friendly-file-system-f2fs.4477/
[Galaxy S 4 i9505 Original Android Development] 00raq00:
I have strange problem. When I'm using ge ROM with KT kernel it works very nice but when i'm using tw ROM and kernel builded same day, many apps lags. Good example is Google+, while scrolling it lags but on the same governor on ge ROM it works fine. Is it Samsung's mistake?

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[Galaxy S 4 i9505 Original Android Development] davtse:
An old experiment we did on the i9300 showed that any undervolting caused the system to slow down. It had something to do with ABB(adjustable body bias) and increasing the RBB(reverse body bias). 10uv did make the system slower but the results were negligible.

Ps. It also depends on the luck of the draw and what bin(quality) chip you had.
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
So no uv is the best. Uc the cpu should be better.

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[Galaxy S 4 i9505 Original Android Development] davtse:
Techincally yes. But it also depends on what quality your chip was and how tolerant it was to undervolting. The better the quality the more tolerant it was. I would say a slight undervolt wont hurt unless you want your phone to be performance optimal.

A little experiment not done by myself that shows the effect of undervolting on the exynos chip.
[Galaxy S 4 i9505 Original Android Development] iamnotkurtcobain:
I always had -50 but that caused lags. Now I tried -10 but I'm not sure... No Uv now. Let's see.

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[Galaxy S 4 i9505 Original Android Development] s3icc0:
So I tried after a longer time this beautiful kernel and found out following things:

1) phone is stucking at samsung boot logo (not on other kernels)

2) ktoonservative performance is worser than it was in the past (even something easy like 2048 is scattering for me)

3) when playing audio from bt i got more and more hardet stops and stucks than with other kernels

One good fthing: idle battery is maybe best of all!

Sorry but movi g back to alucard
[Galaxy S 4 i9505 Original Android Development] davtse:
for 2) are you using it tweaked? In my experience ktoonservative HAS to be tweaked to your liking, but its now a governor that I can't live without.
[Galaxy S 4 i9505 Original Android Development] rauschkugl:
Don't be so lazy and tweak the settings to your usage patterns. There are no problems, just wrong settings and you would have found answers on how to tweak the kernel to get rid of your stutters.

You can't have best battery and performance at the same time.

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[Galaxy S 4 i9505 Original Android Development] s3icc0:
well - i use it tweaked - and before you tell me - I know what and how I can tweak to get the best results,

... now I swapped to default settings (interactive gov) and still - brutal lags playing 2048 game - it is not real racing - it is just 2048.
[Galaxy S 4 i9505 Original Android Development] Formhault:
If you know how to tweak a governor's settings, quit being lazy and explain to us what each tweak does. Just so we better know what we're doing & we don't screw something up.

---------- Post added at 09:31 AM ---------- Previous post was at 09:27 AM ----------

[MENTION=4325945]ktoonsez[/MENTION]

Wouldn't making a nandroid backup be a better method to benchmark the filesystem's performance? It reads and writes at the same time...
[Galaxy S 4 i9505 Original Android Development] hawkerpaul:
Fragmentation affects all types of drives but it's only a problem on hard drives due to the increased time that would be required to move the read head to read a fragmented file.

On sd cards it would take the same time to read a file if it is stored in contiguous blocks or if it is fragmented across the entire partition
[Galaxy S 4 i9505 Original Android Development] Toss3:
I just tried the lastest Linaro Sabermod Brood AOSP rom + Alucard combo, and can confirm the high reads and writes. I also tried quadrant and scored over 7000 in the I/O part(closing in on 8000). Definitely some useful tweaks in Alucard_24's AOSP kernel (the other versions don't show the same behavior).

This is just insane.
[Galaxy S 4 i9505 Original Android Development] rauschkugl:
Doesn't seem like you know if you have lags and report stuff from which has been said dozens of times how you can get rid of it.

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---------- Post added at 07:42 AM ---------- Previous post was at 07:40 AM ----------

There's already a whole thread where somebody explained all the ktweaker parameters.

http://xdaforums.com/showthread.php?t=2367975

And the problems he reported has been answered enough the last week's.

I wonder why somebody else has to search for one all the time. Is it that hard to do it yourself before posting old "problems" again.

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[Galaxy S 4 i9505 Original Android Development] VictorLallemand:
Link please ? That could be useful !