yashsingh1/xdaforums huggingface dataset:
[Xperia Arc Android Development] iridaki:
I prefer not to use SetCPU profiles, as since I experimented with them a lot, in the end I found them not so useful for me.

The only profile I have set is a Charging one, overclocked to 1.6, Performance governor, so that my phone will be snappy as hell when it's plugged in -which is most of the day when I work on my PC! :D

About governors, I swear by this awesome thread that explains thoroughly almost all of them.

I find InteractiveX to give me great performance and speed and decent battery life.

Scary governor lacks a bit on performance on heavy tasks, but is just great for battery life.

Those two are my favorites at the moment. :)
[Xperia Arc Android Development] zpmarcos:
Already installed doomkernel and costum rom!

Should I do anything now?
[Xperia Arc Android Development] superlimau:
How about your I/O scheduler?

Sent from my LT15i
[Xperia Arc Android Development] joecool1029:
I do NOT suggest downgrading baseband to -36 for the LT15a. I can't speak for other models and baseband is usually dependent on region so the LT15i may likely be fine. However, downgrading baseband on the LT15a causes the phone to go through occasional periods of time where data does not work, full bars and data activity will show but anything attempting to use data will immediately fail. I do not have such issues with -64 and can remember it being a bug on -36 when I had the old roms.

Additionally, I don't know if this is related but I cannot toggle the radio in the service menu, if I turn it off, I cannot turn it back on again until I restart the phone. -64 doesn't have this issue. I'm using .62 and I assume .58 will suffer the same issue as Sony has not changed the baseband libs since then. *EDIT* I'm assuming they changed the keypad.apk related libs and it doesn't work right, sorta like how the ICS leak is buggy as hell with our current basebands.

Battery life showed a *modest* improvement on -36 that I will consider statistically irrelevant. Still seeing fantastic life on the new kernel and seeing a day and a half of battery life with a maximum of 1.5%/hr (1% usual, lowest i got on -36 was just under %/hr, with a max of just over 1%) idle drain with wifi off, half signal, and all sync turned on (fastdormancy off, at&t doesn't support it, will be testing standby on Rogers next week who does support it).

Advice for north american arc users, use -64, it doesn't have the massive drain issues of the other baseband before it (-62? i don't remember exact number) and it doesn't have the stability issues of -36. International users, if -36 works for you, good for you. Would like to know if any other LT15a users are seeing the issue.
[Xperia Arc Android Development] arcanixX:
I have a Lt15a and so far i'm doing really great with baseband -36 :) Even better than the -56 which was giving me some lacks of signal.
[Xperia Arc Android Development] adikgemok81:
I'm on the same ROM but with the 2.0Ghz kernel...will try the 1.6Ghz version when I get back home...

@doom : tried deleting all init.d scripts but still smartassv2 giving me phone freeze and reboot symptoms...running great with OnDemand only...InteractiveX also seems to freeze amd reboots the phone...
[Xperia Arc Android Development] Flo95:
InteractiveX works fine...
[Xperia Arc Android Development] ngochuy:
Can anyone tell me the advantages and disadvantages of each CPU scheduler and cpu governor?

Thanks.

Sent from my GT-I897 using Forum Runner
[Xperia Arc Android Development] harfot:
Read the thread, read iridaki's answer here and follow the link.
[Xperia Arc Android Development] DooMLoRD:
thanks guys!

please keep reporting any issues u have...

without these reports i wont know what to look at specifically...

so far SmartAssv2 & InteractiveX are giving trouble to a few right?

also some devices may not support undervolt + underclock (cpu min ~130Mhz) this might also be causing random reboots
[Xperia Arc Android Development] superlimau:
doomlord, if i use baseband .64 with correct library, can i still use v17-fix2 kernel? i flashed baseband .36 and encounter unstable network performances at time.......
[Xperia Arc Android Development] DooMLoRD:
u can use whichever baseband+lib that works best for u...

from what we tested -36 baseband seemed to give best result for most users..
[Xperia Arc Android Development] nexx67:
Hi Doom !

I had no issue with the first v17 release (no fix) on my device (lt15) with default settings.

Then I tried modified clocking (134-1210) and (heavy) undervolting as below :

134-249 mhz 750mv

364 mhz 800mv

560-768 mhz 850mv

804-921 mhz 900mv

1017 mhz 950mv

1136 mhz 1000mv

1209 mhz 1050mv

With these settings my phone is stable with Scary but not with Smartassv2

Hope it will help :)
[Xperia Arc Android Development] iridaki:
I don't ever bother with I/O schedulers. I leave it to the default of each kernel. ;)
[Xperia Arc Android Development] Riyal:
Tried porting the latest patches to my Xperia pro. Resulted in a reboot loop :/ the pll2 fixup seems to mess up everything. Anyways just wanna ask how good did the battery improved? Anybody tried testing the battery with stock voltages, clock and governor? How many % did it reduce per hour on screen off?
[Xperia Arc Android Development] DooMLoRD:
Yes even jerpelea (FXP) told me that his RAY was having this bootloop issue... Though it worked fine on his ARC...

I think its related to the new cpu table... try this... keep thr values of frequencies same as before and just ust the new cpufrq driver I have implemented....
[Xperia Arc Android Development] cruzargel:
good to be back. crap SOPA!
[Xperia Arc Android Development] joecool1029:
I will say that I *appeared* to get more bars, but data was quite flakey and had a tendency to just kick out. I'm a very heavy data user (around 15GB/month over HSPA) so it's something I notice. I have historically had cell data not work until I toggled wifi on the old ROM's but this was different, if I tried to cycle the cell radio off and on through service menu, the baseband would crash and I'd lose the radio till reboot.

After going most of the day on -56, I really can't agree that it does significantly worse on battery. If I were to test 2G and run that for the day (I might while sleeping) I'd likely do even better.
[Xperia Arc Android Development] erwin929:
I'm running on smartass2 sindse 3 days ago on 1,4Ghz and not a single problem (fix 2)

Great battery life

Sent from my Tam Tam using Forum Runner
[Xperia Arc Android Development] Riyal:
Thanks for the tip! Will try it later after work. Also will put feedback of the results later on :D
[Xperia Arc Android Development] alexdonwarez:
can u make updated kernel for miui roms>>>>>>>
[Xperia Arc Android Development] adikgemok81:
Regarding the phone freeze when set to other governers besides OnDemand...i tried version 1.6Ghz and the problem still there...

Went back to test kernel #6016 and things was back to normal...1.6Ghz with InteractiveX governer and -50 ~ -75 undervolting...phone is stable atm...

Feel very sad coz I cant use the new v17 without issues :(
[Xperia Arc Android Development] Riyal:
Finally found the freaking bug! Lol not sure how did Arc manage to endure and boot up with this but here it is...

From

To
[Xperia Arc Android Development] Rycon33:
Guys on this new version,anybody having problem on accelerometer. When playing asphalt 6, it always restarts the race(not the game app or phone) but the race itself only. Cannot complete a race. Didn't have this issue when i was using version15. tested on 1ghz and above. Tia
[Xperia Arc Android Development] DooMLoRD:
Hehe... though this is clearly not affecting ARC and PLAY...

Thanks... Will fix it in our FXP kernel and send it to FXP for testing...

No first we need to clear all bugs from the sources...
[Xperia Arc Android Development] Riyal:
:( The bug still exists... But it's a 1 out of 5 chance that it will happen. And 1 thing I noticed is it boots up 100% sure if charger is connected. Is this a voltage issue? But I had the same voltage setup from my old kernel and it always boots up successfully. 1 thing I'm thinking is that your new cpufreq driver requires more voltage input than normal :confused:

Well at least it boots up now just not always... So for now I'm gonna test the new cpufreq setup and see what's better than my old one.
[Xperia Arc Android Development] DooMLoRD:
hmmm... voltages are same as before...

the current driver works fine for ARC & PLAY and those are the devices which i have...

if u want u can revert to older cpufreq driver....
[Xperia Arc Android Development] Riyal:
I already tried it actually since the testing period... And yeah bug is gone after reverted to old driver... I just wanna try your new driver :D and this is the 1st time it booted up so im gonna go test this one up till my next phone update...

4.0.2.A.0.62 firmware for mk16 is still not available for my device but available on wotan now. :D
[Xperia Arc Android Development] PAVNEET101:
i am on kernel ver17 and i don't know for some reason i can't over clock my device more than 1.6ghz i mean i have the option but as soon as i go over 1.6 it freezes ...it was not the same when i was on the ver15 please help ...is it a bug in ver17 or its my phone ????please help

thank you
[Xperia Arc Android Development] everb00b:
while on kernel 17 fix2. i must say idle is very good! 1% for 5-6 hours with all off.

but if i open Data the battery starts draining with no apps on.

when i try browsing or whatsapp the battery is draining 1% per 5-10mins.

double checked it with ASKernel while using baseband 36 with libs and it was the same result, could the baseband be the problem?
[Xperia Arc Android Development] iridaki:
That's an indication that screen is sucking the battery fast when on. Or if you are in a low signal or 2G-not-3G area download speeds are slow, resulting in more time, thus more drain.

iR¡D@k!* via Tapatalk
[Xperia Arc Android Development] Chewitt:
16h 53m off charge with a lot of usage and I still have 22% battery life left (1.4 clock on an arc) good improvement I take my hat off to you yet again.
[Xperia Arc Android Development] frelle218:
I have set my phone to disable wifi when screen is off but it seems like it's on all day. Is the wifi auto off function broken with this kernel?
[Xperia Arc Android Development] skyboyextreme:
What happens if I use this kernel for Xperia neo?! Thanks
[Xperia Arc Android Development] DooMLoRD:
device might not boot/get damaged...

cross flashing is DANGEROUS
[Xperia Arc Android Development] terranox:
that the governor and "IO" is better for the battery?
[Xperia Arc Android Development] Flo95:
Somehow my Arc gets slow and lagg after 48 hours and gets FCs with V17.

Wiped cache and dalvik, hope that fixed it.
[Xperia Arc Android Development] add2005:
I saw that too. Screen drains 1% in 3-5 minutes, even if my brightness is very low.

Can someone investigate this ?

When i bought my arc(in april) i remember that i could watch 1 full divx movie with 20-30% percents of batery. Now only keeping my screen on drains all my battery in maximum 3-4 hours.

I dont think this is normal.
[Xperia Arc Android Development] harfot:
I am expiring that after a power off or soft rebooting I have to wipe dalvik cache to get back the WCDMA/HSDPA connection.

Also have slow down over a couple of days but battery drain is is as on V16 test (45-40% left day over).

I am using interactive/deadline.
[Xperia Arc Android Development] adikgemok81:
Just wondering...does baseband relates to cpu governers and freq?
[Xperia Arc Android Development] cruzargel:
How can I boot into Doom's recovery?

Sent from my LT15i
[Xperia Arc Android Development] tRippinthehead:
Press Back button few times when you see DoomKernel logo and leds light
[Xperia Arc Android Development] Ninolina:
I don't know is this of any use for DooMLorD or other members but I have tested v17 FIX2 WITH BASEBAND .36 and after a 1 day and 6 hours I have 15% left with a lot of use.

- I had almost always WiFi or Data ON, PushMail ON (with app called ProfiMail from Market), LiveWallpaper ON (some colorfull bubbles and earlier I never use this because it was draining my battery but now I can finally use this too).

- I have many Background Apps like Alarm, Talking Clock (it say automatically what time is it on every 30 minutes), GO LockScreen (which also use battery more than Default LockScreen), a lots of Widgets on my GO Launcher 7 screens, I use White Background and Theme (it also use more battery than dark background), Proximity ScreenOFF (which keep the Proximity Sensor always up and it shut the screen OFF when I cover proximity sensor or put my phone into a pocket), NotifierPro Plus (it give notifications on your screen for anything that happend on your phone - you can select for what apps and things it should notify you).

- During this 1 day and 6 hours I had several text messages, a few calls, I was updated several Apps from Market, received several mails, a few hours using of OperaMini.

0.4-0,5% per hour without WiFi, Backgrounddata off, pushmail off, DATA OFF (Screen OFF)

0,7-2% per hour with DATA on, BackgroundData and push mail on (Screen OFF) (It seems that it sometimes use more battery on DATA than on WiFi)

0,7-1% per hour with WiFi on, BackgroundData and push mail on (Screen OFF)

It's working GREAT and I dint have any Reboots with any of v17 versions..:-) Only with Undervolted file I did have Reboots and I dont use it anymore so my device was on stock voltages.

My settings were:

CPU freq min/max: ~250MHz/~1.4GHz (ARCS S)

CPU Governor: Scary/Smartass2

I/O Scheduler: deadline/bfq

Here are also my screenShots and BetterBateryStatus .txt file...:)

This was usual USE of my device...:)

Thanks DooMLorD...:)
[Xperia Arc Android Development] Riyal:
Hi Doom! Just wanna report that my phone seemed to adapt the new cpu freq you implemented. Like I reported past few days ago that it has a 1 out of 5 chances to get stuck on reboot seems like it's not happening now and I can reboot anytime & successfully now without problems. Tried with 20+ reboots at random times today w/ different battery levels and it seem to work great now.
[Xperia Arc Android Development] cx-11:
Incredible 6 hour's and lost only 2% battery please check the pictures

THX to DOOM
[Xperia Arc Android Development] plopingo:
What rom you are using .62? basbeband .36? libs .36 ? (your sign is not up to date according your screens

Thanks in advance ;)
[Xperia Arc Android Development] cx-11:
I noticed with 1.6 Ghz overclocked the phone does not go into deep sleep as with the original 1.4 overclocking

many this helps a bit
[Xperia Arc Android Development] Ninolina:
Well, that's why I posted ScreenShots. There you can see what ROM and Baseband I was using. :D

I didn't change signature because - before DooMLorD ask us to test v16 test 6 with Baseband .36 wiht libs .36 - I was using .62 and I might get back to that Baseband. I change Baseband to .36 only because of testing.;)
[Xperia Arc Android Development] plopingo:
thanks to you ;)
[Xperia Arc Android Development] DooMLoRD:
DooMKernel v18 test released!

DooMKernel v18 test released!

this is marked a test release as some new features are added and we want to make sure that they dont affect kernel/rom performance...

[ screenshot ]

[ changelog ]

reclaimed 20 MB more RAM!!! (thanks to jerpelea)

fixed 184 MHz freq not showing up in cpu freq selection

added ZRAM driver

added CleanCache driver

download links at first post!

please test out everything and let us know!

enjoy!
[Xperia Arc Android Development] Flo95:
Didn't we have 335MB before?

That makes 45MB more then :D

EDIT:

SetCPU and Quadrant both say 365MB RAM available instead of the 380MB in your screenshot.

But that's still a 30MB increase compared to stock :)
[Xperia Arc Android Development] Ninolina:
I am starting to test v18 right now...:) Will report tomorrow...:)

Thanks DooMLorD...:)
[Xperia Arc Android Development] harfot:
First impression of V18: It's running fast, it's running very fast.

Thanks, DooMLoRD :)
[Xperia Arc Android Development] kurnage:
Thanks for your dedication to our beloved devices DooMLoRD. Am testing latest kernel now, will report back in 24 hours.

First impressions - Another first class release :)
[Xperia Arc Android Development] iridaki:
Thanks for the new kernel release Doom! :)

However, I faced a very weird issue.

I flashed the kernel, wiped cache and dalvik cache, flashed the modules in recovery and rebooted. Everything seemed fine, but when I did a reboot, my phone got stuck at the kernel logo. I could access recovery but it wouldn't go any further.

I reflashed stock kernel and the phone booted up fine again.

I was using the 1.6 version. I'll try reflashing it tomorrow though!
[Xperia Arc Android Development] zpmarcos:
Should I wipe cache and dalvik every time I update or change kernel?

Before or after?

Thanks
[Xperia Arc Android Development] Riyal:
Hi iridaki! If you somehow encounter again that situation could you then plug the phone to a charger and leave it for at least 30 secs and see if it boots up? I'm having suspicions with that bug but can't really test it as it rarely happens. :)
[Xperia Arc Android Development] swavab:
Not needed..u just flash kernal by fast boot..then instal any modules and script needed like wifi module and a2sd etc...if any dout u can ask..
[Xperia Arc Android Development] doomed151:
Dude, you're looking at internal memory. RAM clearly says

.

Currently it's 336 MB so it's exactly 20 MB more.
[Xperia Arc Android Development] Flo95:
No, I was looking at RAM.

EDIT:

Looked at the wrong thing in Doom's screen, you're right :D

Android System Info shows 356MB RAM for me, too.

Don't know why it's diffemt with SetCPU and Quadrant.
[Xperia Arc Android Development] dexterfunk:
after flashing i get this error when installing zip from sd

i get this error

im on doomkernel v18 with acornium 5.6
[Xperia Arc Android Development] Rycon33:
Version18 and my phone is very stable on 1.5ghz. Nice!
[Xperia Arc Android Development] Ninolina:
It happened to me too, and I only removed the battery and turn on the device again and it booted normally. Try that it if that happened to you again.
[Xperia Arc Android Development] dp94:
Look down, you are reading the internal memory.

RAM is instead of 335 MB now at 356 MB at the screenshot. ;)

EDIT:

sorry, question have already been answered.:o
[Xperia Arc Android Development] DooMLoRD:
SetCPU reports RAM in KB... divide it by 1024 and u will see the RAM value in MB ;)

that update.zip seems to be damaged... redownload it...
[Xperia Arc Android Development] vulkanxxv:
DoomLord, is this the update to solve the wifi issue?

http://www.multiupload.com/NUE32W3LGB

Your kernel is nice and is my desire to adopt it! :D

Thnks
[Xperia Arc Android Development] cx-11:
WOW ..... im surprised... how fast V18 runs im on testing right now reporting next days

but first inpression ...... feels faster boot up, an handling wow

You Rock buddy .......
[Xperia Arc Android Development] iridaki:
Hi! Thanks for the advice! I did plug it to a wall charger, then to my USB charger but it would only reboot and get stuck at the kernel logo again.

I also removed and re-inserted the battery but still no luck.

What do you suspect?

iR¡D@k!* via Tapatalk
[Xperia Arc Android Development] DooMLoRD:
that is a general update.zip

what issue u have with wifi?

flash the modules provided in first post...

read the FULL first post clearly...

i always leave my ARC connected to wall charger... never had this issue...

if u have time try the same setting on a CLEAN stock ROM... may be some "tweak" is interfering?
[Xperia Arc Android Development] vulkanxxv:
Yes, I have the WiFi issue indicated in the first post.

I followed the istruction but (I don't know why) the device not answer when I use fastboot command. I've installed your kernel using Flashtool, may be this cause the problem?

tkns
[Xperia Arc Android Development] Riyal:
Well I had the same issue before but mine resumed booting after I connect it on a charger. And right now the issue was resolved after modifying the voltage setup of the kernel I used so I was thinking this maybe related to having incompatible voltage and cpu clock frequency setups. Although I haven't really proved it yet since I only did this on my Arc and Pro.

And right now I think I could probably say that I managed to make doom's new cpufreq driver to work stably on both Pro and Arc. (At least on mine) Never had any problems now for 4 days straight.

@Doomlord

Just wanna report that I think having CIFS/network file systems enabled doesn't affect battery life. Got mine @ .3%/hour with those enabled on my kernel configs having stock clock frequencies and voltages with ondemand governor. The real battery hog was the old cpufreq driver. I'm done comparing different kernel builds now will post a battery log result soon. :) Thanks for your new cpu freq driver! Now only problem is display sucking battery at an insane rate.
[Xperia Arc Android Development] mr6768:
Hi ,

I'm using an Arc S

I haven't decided about unlocking bootloader and flashing this kernel.

but I have a few questions ...

1- If I install either 1.6ghz or 2.0ghz version of v18 , does my phone automatically overclock to these frequencies ?!

But I don't need my phone overclocked !

2- I heard after installing this kernel , you can not charge the phone when It's off. Is it true ?

3- is it prerooted ? so can I have the unrootable .62 Stock Rom rooted with this kernel ?
[Xperia Arc Android Development] Flo95:
You have to overclock using an app. If you din't use such an app, it'll stay at stock speed.

This kernel will root your .62 firmware

Don't know about offline charging.
[Xperia Arc Android Development] Riyal:
1. No there's a script there added by doom to automatically set the frequencies to stock by default. In order to change frequencies you must install a 3rd party tool which alters frequency to override the script doom created.

2. Beats me on mine charging while phone is off works.

3. Yes. The rooting script is inside the ramdisk which is also part of the kernel. Upon installing the kernel it dumps the su binary, busybox & superuser.apk from ramdisk to /system partition thus rooting your phone.
[Xperia Arc Android Development] h25p:
Can we expect an updated MIUI Kernel from you soon? I'm dying to test it ;)
[Xperia Arc Android Development] mehdi.xterra:
dear doomlord tnx for your hard work, i flashed 2.0GH version on my arc, when i use the camera and when i want take a picture device say unknown error , please fix it tnx again and excuse me for my bad english
[Xperia Arc Android Development] Flo95:
It's your phone, not the kernel

Just took a pic without a problem.
[Xperia Arc Android Development] mehdi.xterra:
if phone have problem why this problem isnt in kernel v17? i have this problem on the v18 not another version
[Xperia Arc Android Development] dinesh690:
You probably messed around with after v17 then flashed v18 and you think it doesnt work after you flashed v18 but the problem probably existed before you flashed it. Maybe a custom rom or something? Try restarting phone etc, maybe a nandroid restore?