yashsingh1/xdaforums huggingface dataset:
[Samsung Epic 4G Touch] carhauler1969:
Deadline is preferable over noop, bfq, or cfq. The gunslinger kernel only offers the sio scheduler, which I'm not familiar with, but it seems to work fine with the SanDisk class 4 card I'm using, with the SD cache set @ 6144kb. Most SD cards can handle the SD cache set anywhere up to 4096kb, the class 2 cards get a little flaky after that point & actually slow down.

As for the wake up lag, have you tried another kernel? Disabling the battery saver script? Removing the under volting? There are a lot of things that can contribute to wake up lag. Did this just start happening on the latest 2.8.1 EL29 ROM/kernel?

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] carhauler1969:
.zips are flashed in CWM recovery, .tar are flashed via Odin.

Do you have to do what before you flash a ROM?

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] odub303:
Gunslinger offers sio, noop and cfq.
[Samsung Epic 4G Touch] graffix31:
Just wanted to say thanks for answering all of these questions. it drives me crazy that people just dont read and want everything answered for them. i am no developer. but i read like crazy before even thinking about rooting my phone. it seems that so many people dont do any troubleshooting or searching for anything in here. they just ask questions. this is supposed to be a thread for calks rom and the tangents that happen make it just annoying to try and keep up with.

sorry rant over, but thanks again for having the patience.

Here is to 2.9 this weekend hopefully :D
[Samsung Epic 4G Touch] carhauler1969:
I stand corrected, I'm on my EVO ATM & I didn't recall seeing the other two schedulers when I setup the ROM on the E4GT the other night.

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] wilnotdie:
My screen shot function isn't working. Am I doing something wrong, or did I disable it?
[Samsung Epic 4G Touch] mthayes:
This solution is not working for me. I have made numerous attempts, restoring back to original rom, restoring to factory EL29 rom and everything else. Interesting note, I have never seen in all these restores the "Android Secure" folder on my internal SD Card. Have seen the folder only on the External Hard Drive, and have deleted it, but with no success.

Any other solutions?
[Samsung Epic 4G Touch] IA-32e:
Hold the home button just long enough for you to press and briefly hold the power button. The power button snaps the pics.
[Samsung Epic 4G Touch] JohnCorleone:
Out of curiosity, what are people expecting from 2.9? There is already an optimized EL29 build with an EL29 kernel. It includes almost every good mod and any other one is available in a theme or as an add on. Just sayin'
[Samsung Epic 4G Touch] scarmon25:
Yeah. Honestly between this and Overstews theme I couldnt be happier. It drops when it drops. Till then I'm peachy. Couldn't ask for more.
[Samsung Epic 4G Touch] s9amme:
+1

The biggest update (if you can call it that) is probably the gunslinger kernel, which you can flash yourself right now! Plus a few tweaks here and there. If your running fine on v2.8, v2.9 probably won't be a big deal
[Samsung Epic 4G Touch] cjwaggsrx8:
True to the dat... I also ran that cm9 exp build for a day and honestly its real close to being a daily.. Can't wait!!!! Honestly it could be my daily now but I was just missing all this calk/stew/gunslinger glory!!!!
[Samsung Epic 4G Touch] agentfazexx:
They want new flashy nonsense. Aren't happy with what they have now.
[Samsung Epic 4G Touch] SantinoInc:
I think we should all use his "DONATE TO ME LINK" He is the world renowned dev of the famous WHAT IS THE ETA app.
[Samsung Epic 4G Touch] Ja5oN:
Could someone give me a little assistance with CRT on. I flashed the CRT on zip, and no CRT on? It did however change my themed battery icon back to the green. Any ideas gentlemen?
[Samsung Epic 4G Touch] asbjörn:
My current combo is Calk's 2.8.1 rom with Stew's 2.3 ics theme; and it's humming along beautifully on my phone.
[Samsung Epic 4G Touch] cjwaggsrx8:
Seriously though that's the funniest shiz I've heard on these threads way to go broseph!!!
[Samsung Epic 4G Touch] JohnCorleone:
People should definitely be mashing the "thanks" button for Calkulin (as well as other devs) The fact that Calkulin has 1790 thanks and I have 1000 is absurd. I haven't done a thing compared to him or any other dev. I guess he needs more posts to be thanked...lol
[Samsung Epic 4G Touch] darren.wlsn1:
agreed but he never posts and you can only thank the op so send him 2$ for coffee.
[Samsung Epic 4G Touch] meatwadathf:
search torrent in this thread and you can download the torrent i uploaded. should be faster than any of the other links.

---------- Post added at 03:11 AM ---------- Previous post was at 03:05 AM ----------

Yeah, I've tried all that including deadline and still very slow... Hopefully this can somehow be addressed in a rom/kernel.
[Samsung Epic 4G Touch] dvtmg704:
Where can I get themes for this rom
[Samsung Epic 4G Touch] nibrwr:
In the themes & apps thread. Overstew's ICS theme works perfectly
[Samsung Epic 4G Touch] rondietz1:
Battery Life

First off let me say that this is one of the best roms I've ever used, and between this phone, my previous EVO 4g, and other past phones, I've tried a whole lot! In the month plus that I've had this installed, I have had maybe one or two fc's, it's so solid some times I go a week without ever rebooting, just no need. The only thing that is sometimes troublesome (this is by far not unique to this phone or rom) is battery life. Now, with this rom and previous ones on this phone and previous phones, I have used JuiceDefender Ultimate. In the past I have had mixed results from not much of a noticable improvement to doing a decent job of extending battery life. Since installing with this rom my battery life has at least doubled, and I really haven't taken the time to learn all the settings to optimize things, I've just been using one of the stock settings. There is something about this rom (I'm running 2.8) that just seems to mesh great with the program. I just can't imagine what this might do in the hands of someone who knows what they are doing, with it tweaked and fine tuned, could be a total powerhouse!

Just wanted to share, at least for me this is a great combo.
[Samsung Epic 4G Touch] rickyq12:
Yes, themes and apps thread.

Also, Nothin but the Honey theme works and looks great with this ROM.
[Samsung Epic 4G Touch] kessomatt:
The only thing that fixes it is removing the sd card. it really drives me nuts. I do remember some evo 4g custom kernels having this issue so hopefully it can be fixed. From what I have read its a battery saving technique.
[Samsung Epic 4G Touch] jrock32:
I'm looking to install the new rom and wondering if I need any other previous version before installing the latest? I'm currently on v2.0 w/ EK02... I know, I know, its an older version but damn it rocks! Battery life and stability are awesome! I'm just wanting to upgrade to the new version to get the 4g hotspot. Thanks in advance.

Jordan
[Samsung Epic 4G Touch] meatwadathf:
You can go straight to newest version.

---------- Post added at 09:59 AM ---------- Previous post was at 09:53 AM ----------

I know for a fact that it is not ONLY the sd card, because the stock rom has NO wake lag. I hope someone can fix this.
[Samsung Epic 4G Touch] aquaholik:
I was on 2.0 and it was rock solid for me too but decide to update to 2.8.1 and all I did was wipe cache and dalvik. One caveat. If you use bluetooth to activate voice call, it won't work on 2.8.1. You have to unpack the library and use root explorer to change permission.

I updated so I can get 4g hotspot. I have great 4g signal at home that pulls in 8-10 mbps but Sprint hotspot seems to only pass a fraction of that to my connected device. I am getting 1.6mbps when I test it with my desktop that has a wireless network card. I test the same desktop with EasyTether Pro and it is pulling down 8-10mbps.

I also read that a lot of people here can't seem to get the full 4g speed on download using Sprint hotspot BUT people who have flash the hotspot hack on their stock rooted phone is pulling the full 4G on the download(6-10mbps).

I am still on EG30 modem since I am happy with GPS and cellular network performance. Can anybody test their 4G Sprint hotspot and see what kind of speed does the connected device pull down compare to the speed that the phone is pulling down and post their modem version?
[Samsung Epic 4G Touch] JohnCorleone:
I don't think anyone is pulling anything over 2Mbps. I paid for Hotspots and used it on stock OG Epic ans probably 100 ROMs then I switched it to my Epic Touch (which I left stock for a long time) and tried it on a few ROMs on here. I average the same 4g speeds as you and I when I see 1.6mbps it pisses me off too. I find myself using WifiTether in certain instances. They are throttling the heck out of us! Its probably why the phone gets so damn hot! All of that speed and power being held back!
[Samsung Epic 4G Touch] carhauler1969:
+1 I've had similar results with JuiceDefender Ultimate on the default aggressive profile, it at least doubled battery life over the stock TouchWiz battery saver for the way my wife uses her E4GT.

On a side note, I discovered one of my lines was eligible for a full upgrade last night, so I ordered myself an E4GT on NewEgg for $149.99 + free next day air, so now I've purchased two of these E4GT's for a grand total $50 out of pocket:

$.01 for the wife's

$149.99 for mine

= $150.00

-$100 Amazon gift card for buying the wife's = $50 total spent :D

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] aquaholik:
Thanks for the quick response John and for confirming what I've been reading. It's nice to have WifiTether and EasyTether to fall back on if I need real 4g speed.
[Samsung Epic 4G Touch] MN-Joe:
I can only speak to what has worked for me regarding GPS issues with 2.7 - 2.81 and that is referenced here: http://xdaforums.com/showpost.php?p=21184416&postcount=17 There are older versions of this out there, but the GPS_Supersonic_Fix_Flash3.zip immediately fixed the issues I was having. Just load it as you would a rom or modem via CWM.

File is here:

http://xdaforums.com/attachment.php?attachmentid=848328&d=1326076321
[Samsung Epic 4G Touch] carhauler1969:
It has to be something in y'alls setup because the majority of us do not have this wakeup lag.

I know my setup is typically more aggressive than most, but it's nothing fancy really & I have no wake up lag at all.

Just a thought from past experience on my EVO, utilizing multiple apps to control CPU settings will cause extreme wakeup lag, especially with SetCPU for whatever reason. On the EVO when Vaelpak integrated CPU & governor controls into the ROM in the settings menu we were using SystemTuner to set screen off profiles to help with battery life. This created huge wake up lag, & even SOD (sleep of death) situations where the phone refused to wakeup. Switching to the smartass governor with no screen off profile was the fix on the EVO, since smartass is it's own screen off profile.

I've yet to see the smartass governor implemented with the E4GT(?), but it leads me to believe that you guys may have either conflicting settings creating the wakeup lag, or are using the wrong, or too aggressive of a governor for screen off situations which is creating the lag.

IMO, it's not the SD card causing it, slow app loading maybe, but definitely not wakeup lag. That's a conflicting setup, or incorrect setup issue totally unrelated to the SD card, unless of course you're using boot manager to boot multiple roms from the SD. In which case it's still not the ROMs fault, nor the kernel, etc. BootManager = asking for trouble IMO

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] carhauler1969:
GPS_Supersonic_Fix_Flash3.zip are the Vision Galandy v1.1 GPS drivers that I recommended yesterday. They work on a multitude of devices.

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] JohnCorleone:
Thanks,for the EasyTether mention. I will add that back right now! Lol
[Samsung Epic 4G Touch] daniel4653:
Didn't help me. Thank you though
[Samsung Epic 4G Touch] MikeC84:
Finally edited the Launcher for 4x4 app drawer!!!!!! Use root explorer and copy to system/apps and set proper permissions.... Enjoy

I am going to use the stock launcher to see if there is still the extra space at the bottom of the app drawer and I'll re-post..
[Samsung Epic 4G Touch] Chekz:
walmart has them for $99. Radioshack has them for $199. Radioshack's new lowest price guarantee will price match to $99. They also have a trade in anyphone and get $100 credit towards an E4GT which would make it FREE at Radioshack.
[Samsung Epic 4G Touch] carhauler1969:
Dammit that's a smoking deal, & I could've gotten rid of the HeroC at the same time. Doh! :banghead:

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] chasoo:
Getting a "your device is not compatible with this item" message when I try to download anything from the market. Any ideas why?
[Samsung Epic 4G Touch] meatwadathf:
Right after installing the rom? Try clearing cache and data for the market app.
[Samsung Epic 4G Touch] chasoo:
I did. Still getting the message.
[Samsung Epic 4G Touch] meatwadathf:
Try wiping and flashing again?

Do you have lcd density set to something other than default?

http://www.traemcneely.com/2011/12/...patible-with-this-item-in-android-app-market/
[Samsung Epic 4G Touch] chasoo:
I'll do this.
[Samsung Epic 4G Touch] chasoo:
Worked. Thanks man.
[Samsung Epic 4G Touch] ferfy67:
Having problems downloading ROM, I am getting an error on Hotfile. I also tried downloading from the torrent that was suggested to another member that I saw a few pages back and got a download unsuccessful.

I will try again from the torrent but if anyone has any other suggestions, or even another mirror or Dropbox I would appreciate it. (:

Thanks, j

Sent from one of my many Epic personalities from a Galaxy, far, far away
[Samsung Epic 4G Touch] SantinoInc:
I'm looking forward to the next build of this rom with that new GPS fix for location. Haven't see Cal around in a bit...hopes he surprises us all soon with 2.9
[Samsung Epic 4G Touch] Dchibro:
Guys, the wakelag issue has been around since release, and it definitely happens in the stock ROM. Yes it does have to do with the way the phone reads the SD card when it wakes from deep sleep. Someone here at XDA did a full analysis on what was causing it by using logcat dumps. I'll see if I can dig the post up, but it's at least 4 months old.

Edit - Ahh I found it. http://xdaforums.com/showthread.php?t=1308883
[Samsung Epic 4G Touch] JohnCorleone:
Dchibro, did you adjust the SD Boost in ROM Toolbox Pro up to to 2048kb,3072kb, or 4096kb? I know my initial SD reads seem much faster but I am not sure which setting would be best. I have been toying with 3072 and 4096. After odexing my setup with theme, the phone boots and flies through the initial SD reads. The phone is 128kb as default
[Samsung Epic 4G Touch] darren.wlsn1:
i have a app that does it on boot and love it.
[Samsung Epic 4G Touch] AVAH0LIC:
What's the proper way of flashing CRT On? Me and Jason are both having problems.

Epic 4G Touch perfected by Tiff and Calk!
[Samsung Epic 4G Touch] rickyq12:
All I did was flash via cwm. Try that. It worked for me.

Not sure if there's another method.
[Samsung Epic 4G Touch] SSaxman:
Is there a way to change this without an app? I remember on my Evo there was a file you could edit that would change the SD read ahead on boot.
[Samsung Epic 4G Touch] darren.wlsn1:
if your editing a file why not just use the app that does it on boot?
[Samsung Epic 4G Touch] meatwadathf:
Torrent is definately up and seeding. I would suggest using utorrent as a client. Make sure u have the proper ports opened and dht and peer discovery on.
[Samsung Epic 4G Touch] SSaxman:
I know there's an app for it. I was asking if there was a pre-existing file that would do it. If there's already a way to do it then I don't need the app.
[Samsung Epic 4G Touch] Dchibro:
Yes I played with all the settings but each test I did didn't result in improved read/write speeds. I have a class 10 card in the phone too. The wakelag doesn't bother me though. Maybe I'm overly patient but I barely notice it.
[Samsung Epic 4G Touch] SSaxman:
Found it: http://www.goodandevo.net/2011/02/how-to-increase-sd-card-read-speed-on-rooted-htc-evo-4g.html

The buffer on this phone is already set to 128. I changed mine to 256 (I only have a class 2 card) and it did make a difference while looking through the Gallery. Pics load up faster for me.
[Samsung Epic 4G Touch] AVAH0LIC:
Bumped mine up to 256 on my class 10 and gallery is beasting! Thanks for the tip

Class 10 should be able to handle much higher?!

Epic 4G Touch perfected by Tiff and Calk!
[Samsung Epic 4G Touch] SSaxman:
No problem. If you have a class 10, you could go higher than 256. The only thing that sucks is that you'll have to change it again upon reboot. Not a huge deal, though.
[Samsung Epic 4G Touch] daniel4653:
Use rom toolbox pro! You can " set on boot" :)
[Samsung Epic 4G Touch] SSaxman:
Thought about it, but I'd already purchased Set CPU and TB long ago which already do alot of what ROM toolbox does. I may look into it, though.
[Samsung Epic 4G Touch] AVAH0LIC:
What do you think a class 10 could handle?

And you mean you have to reset after reboot past 256 or whatever you change it to?

Epic 4G Touch perfected by Tiff and Calk!
[Samsung Epic 4G Touch] meatwadathf:
Personally I found my 32gig samsung class 10 is fastest with a read ahead of 1024. The change should take place imediately. No need to reboot. However, you must change it back to 1024 (or whatever value you want) after each reboot, unless u use an init.d script or the pro version of rom toolbox.

EDIT: I have attached the init.d script that will set the sd read ahead value to 1024 at boot.

MAKE SURE TO: remove the .txt extension at the end of the file. Then just put it on your phone at /etc/init.d

EDIT: I've attached a new script as the first one was not working for some ppl.
[Samsung Epic 4G Touch] JohnCorleone:
ROM Toolbox Pro is what I am using. I was wondering what the optimal settings were. It sounds like 1024 is a number I have heard several times. Maybe I need to back mine off a bit...I was using 2048 and 3072. I will back it off some and see if its faster than going so high. What would the high settings be designed for?
[Samsung Epic 4G Touch] SSaxman:
Check this article out to get an idea of the speeds for different class cards: http://www.goodandevo.net/2011/02/h...ed-htc-evo-even-faster-than-previous-mod.html. You can try different settings and see what works best.

The buffer will reset to default, in our case 128, upon reboot. So, if using this method to change the buffer as opposed to an app like ROM Toolbox, you'll have to change it back to the custom setting when you reboot. I don't reboot that often so not a huge deal for me.
[Samsung Epic 4G Touch] meatwadathf:
Just test em all out until you find the fastest one. :D That's what I did. I assume it varies by the manufacturer and even by card. Not sure about higher settings... Maybe they work better on other phone/card combos? Maybe they're just there to be there. Theoretically I think you can enter any number into the init.d script...

The sad part: I ended up taking the card out because I can't stand the wakelag and wasnt able to remedy it with any combination of settings.:(

---------- Post added at 10:42 PM ---------- Previous post was at 10:37 PM ----------

I don't think the files in that article will work with our phone....

EDIT: Nevermind, they should work. They automatically implement a init.d script like the one I posted above.
[Samsung Epic 4G Touch] Isriam:
tried the script but it didn't work for me.
[Samsung Epic 4G Touch] meatwadathf:
Did you remove the .txt extension? And are you running a kernel with init.d support? To check if it worked: go to root explorer /sys/devices/virtual/bdi/179:0/read_ahead_kb and check the value.
[Samsung Epic 4G Touch] JohnCorleone:
So far 3072 seems to fly for me on the initial reads. It briefly slows around 30% then flies through the rest. I suppose I can break out my stopwatch on my Nexus and time them all....meh, I am bored, I will do that. Oh, I am on a 16gig class 6
[Samsung Epic 4G Touch] meatwadathf:
Why not use SdCard Tester in the market?
[Samsung Epic 4G Touch] darren.wlsn1:
cause he is very bored. lol
[Samsung Epic 4G Touch] meatwadathf:
Ahhh... Touche
[Samsung Epic 4G Touch] JohnCorleone:
Didn't even know the app existed. Thanks. 2048 is fastest for my setup but 1024 is almost the same
[Samsung Epic 4G Touch] SSaxman:
I wasn't suggesting that anyone use the files. I just linked the article because it listed the different read speeds for various card classes.
[Samsung Epic 4G Touch] SSaxman:
Thanks, meatwadathf. Can I change the value from 1024 by editing the script? Also, and pardon my ignorance here, but was is the I/O scheduler?
[Samsung Epic 4G Touch] meatwadathf:
Yea, theoretically you can change it to any value and it should work. However you might wanna stick with the standard values (1024, 2048 etc etc etc...). I/O scheduling determines how data is written to the system. I'm not at all familiar with the details but I was told deadline is the preferred value and it does indeed give me the fastest r/w speeds.
[Samsung Epic 4G Touch] TonyTurboII:
Bueller, Bueller.....Bueller.........
[Samsung Epic 4G Touch] meatwadathf:
Doesn't do anything for me. What exactly are you refering to? Which app?
[Samsung Epic 4G Touch] Ja5oN:
Hey Tony what is this now?*#0*#?
[Samsung Epic 4G Touch] SSaxman:
Two days in on 2.8.1 (came from 2.0.1a) and loving it. As usual, great job Calk.
[Samsung Epic 4G Touch] daniel4653:
What's your setup bro if you don't mind sharing ;) lol
[Samsung Epic 4G Touch] SSaxman:
Not at all. Running 2.8.1 + ICS 2.4.1, Gunslinger 1.4.0, and EL26 modem. I'm using Set CPU at 1200/200 on demand, screen off profile at 500/200 conservative, <50% battery profile of 1000/200 on demand, and <35% battery profile of 800/200 conservative. Also running under volt of -50mV.
[Samsung Epic 4G Touch] Isriam:
Found the problem, permissions have to be rwx. set to rw won't allow the script to run from init.d
[Samsung Epic 4G Touch] carhauler1969:
SDTools free in the market will test read & write speeds. ROMToolbox free and pro will allow you to adjust & reapply the SD cache on boot. SystemTuner will also allow you to do this, both on boot complete, or with an init.d script.

Sent from one of my rooted devices on Tapatalk Pro
[Samsung Epic 4G Touch] meatwadathf:
Posted another one that should work now. Check out the original post.
[Samsung Epic 4G Touch] JohnCorleone:
I would start with 1024. The difference with 2048 is minimal but that's up to you. I will check out the script shortly. Thanks. I hoped speeding that up may help some people somehow. As for the wake lag....I never have it so I can't help there.
[Samsung Epic 4G Touch] darren.wlsn1:
"hitman" kernel is working nice with this rom, man this phone/rom is fast as HELL.
[Samsung Epic 4G Touch] carhauler1969:
Just a couple examples of what increased read ahead speed does for SD read/write speeds. This is my Transformer TF101G, with a Patriot 32gb class 10 card, and read ahead set to 6144kb on the Noop I/O scheduler:

As you can plainly see the card is able to be read at 2.5 times the class rating of the card, and & written to at 1.5 times the class rating. It should be noted that on a class 2 card increasing read ahead speed beyond 4096kb is counter productive, and as the R/W speeds will actually decrease after 4096kb. I use a SanDisk 16GB class 4 card in my EVO 4G with the read ahead set to 6144kb on the deadline scheduler and it will read @ +16MB/s, and and write @ over 10MB/s.

I'll run some benches on the wife's E4GT and edit this post with some screens.

Edit: This is the wife's E4GT, the card is a SanDisk 8GB class 4:
[Samsung Epic 4G Touch] carhauler1969:
Can't argue with these results: