Virtual Memory on 4.1!! **IMPORTANT**

GorgonSin · 12-19-2010, 06:49 PM

After a week of trying to get the Dynamic_Pager + preference file = Swapfile method to work on iOS4.1 i have learned to tonight that there is in fact a conflict between ios native multitasking and the dynamic pager functions!!!!

what this means is that you must disable native multitasking and fast app switching and instead use Backgrounder + Multiflow to achieve real "extended" backgrounding limited only by the amount of free disk space you have to be used by virtual memory

i recommend the method that creates 1 large 512BM swap file for maximum stability instead of several 64mbs

since using this method my phone is 100% stable and much faster with no crashes or freezes or safe modes at all..

PS. I am also using the overclock/Full clock mod from cydia and my 3gs is now same speed or slightly faster than a stock ipone 4..

I only researched all this info thanks to all the hackers and

dr_savage_01 · 12-19-2010, 07:27 PM

how do you make 1 large file of 512 rather than 64mb

GorgonSin · 12-19-2010, 07:37 PM

Here is the info from matt912836... this method works perfectly with back grounder

See whole thread here: h**p://www.ipodtouchfans.com/forums/showthread.php?t=318598

Quote:

- Previous versions of the plist would crash iOS 4.1, but I've gotten just the right settings to make it stable enough for public use. -

Installation:

There are two versions, a 256MB version and a 512MB version. This doesn't mean that your adding on 256 or 512 MB of RAM, and thats it. It just means each paging file will either be 256 or 512 MB EACH. If your using 256MB and background enough apps to fill it up, then a new paging file will be created. Its a matter of how intense you plan to multitask and spacial concerns.

1. Move the desired com.apple.dynamic_pager.plist from either the 256 or 512 folder, depending on what version you want, to "/System/Library/LaunchDaemons". Make sure permissions are set to 755 (use iFile).
2. Move com.apple.virtualMemory.plist to "/Library/Preferences". Make sure permissions are set to 755 (use iFile).
3. Change the permissions of /private/var/vm to 777 (Read Write Execute for all three) *VERY IMPORTANT*

Failure to not follow all steps completely can result in your device going into safe mode when activating VM

DOWNLOAD LINK TO FILES TO USE...

http://cdn.ipodtouchfans.com/forums/...6&d=1287947946

dr_savage_01 · 12-19-2010, 07:45 PM

cheers dude but the link is downloading a php file

ENIGMA · 12-19-2010, 08:10 PM

Sweet bro

GorgonSin · 12-19-2010, 08:29 PM

Quote:

Originally Posted by dr_savage_01

cheers dude but the link is downloading a php file

nah it works just right click on it if ur on a PC... or go to the thread in the link and click on it there.. it works i just downloaded it 3 times to my mac from this thread... its a zipped file called: iOS 4-1.1 Virtual memory.zip

[AMM]Viper · 12-19-2010, 08:49 PM

Quote:

Originally Posted by GorgonSin

PS. I am also using the overclock/Full clock mod from cydia and my 3gs is now same speed or slightly faster than a stock ipone 4.

How do i do that overclock method for my 3G? I would really like to know. thanks

~~randrewm97~~ · 12-19-2010, 09:23 PM

Quote:

Originally Posted by [AMM]Viper

How do i do that overclock method for my 3G? I would really like to know. thanks

you cant overclock the processor. i thought you could at one time too but turns out its a myth. until someone cracks the fstab, it cant be done. this will allow for virtually more ram... meaning more apps in background and what not. this wont make things run faster though

GorgonSin · 12-20-2010, 08:00 PM

Quote:

Originally Posted by randrewm97

you cant overclock the processor. i thought you could at one time too but turns out its a myth. until someone cracks the fstab, it cant be done. this will allow for virtually more ram... meaning more apps in background and what not. this wont make things run faster though

apple has under clocked all the idevice processors to save battery power.. it has been confirmed that he cydia hack does in fact remove apples block on the full processor speed of 3gs and i4 i can confirm that my 3gs is at least 25% faster with the hack turned on

SydManson · 12-20-2010, 08:27 PM

so if we want to undo this do we just delete the added files?

myth20 · 12-20-2010, 08:33 PM

I have 3gs. I should try this. So I needed to disable native ios and use backgrounder and multiflow? Anything else I need to do?

~~randrewm97~~ · 12-20-2010, 08:51 PM

Quote:

Originally Posted by GorgonSin

apple has under clocked all the idevice processors to save battery power.. it has been confirmed that he cydia hack does in fact remove apples block on the full processor speed of 3gs and i4 i can confirm that my 3gs is at least 25% faster with the hack turned on

no it hasnt been proven. the clock speed was locked after 1.1.4, so if you want, downgrade to that

. anyways, the fstab contains the clock speed and its set to read only. so if this app cracks the fstab and also gives full permission (read and write), then this app is a fake.

you might want to believe it but the only thing this thing can do to help is manage memory with vmem, but outside of that IT DOESNT WORK

GorgonSin · 12-20-2010, 09:22 PM

Quote:

Originally Posted by randrewm97

no it hasnt been proven. the clock speed was locked after 1.1.4, so if you want, downgrade to that

. anyways, the fstab contains the clock speed and its set to read only. so if this app cracks the fstab and also gives full permission (read and write), then this app is a fake.

you might want to believe it but the only thing this thing can do to help is manage memory with vmem, but outside of that IT DOESNT WORK

well thats the cool thing about having your own mind you can believe what ever you want.. i am not going to e-beef with you over this silly crap if you dont wana use that hack then fine im just providing more options

bstylz · 12-21-2010, 12:59 AM

i read on another thread that it is not possible to overclock....

awar · 12-21-2010, 02:17 AM

Thank..This mods works for me. 3GS 4.1
My VM increase from 98MB to 160MB in idle condition.
I feel my phone a lot faster now

shametw0 · 12-21-2010, 06:23 AM

can i use it on a iPhone 3G?

GorgonSin · 12-21-2010, 06:20 PM

Quote:

Originally Posted by shametw0

can i use it on a iPhone 3G?

yes it works on 3g 3gs and 4...

fahimr94 · 12-23-2010, 08:59 AM

i read that using the swapfile method of 3G is useless cause of 3G low ram

"I DO NOT recommend this for ANY device with 128MB of RAM!!! I tested this on an iphone 3G, and the performance was TERRIBLE! This is because those devices have so little ram, turning on the pager will make it CONSTANTLY grind the files. This WILL drain battery VERY VERY fast."

[plist] Increase RAM with Dynamic_Pager (Virtual Memory) (iOS 4.1 Compatible!) - Page 3 - iFans - iPad, iPhone, and iPod touch Fans forums

i want to try this out but not sure after i read the other article. can you confirm that this will work on 3G.

TY

shametw0 · 12-23-2010, 11:48 AM

I wont do this, i read a lil bit around the web and everyone is warning that this will fuck up ure flash memory very fast. And the Flash Memory is nothin that u can repair ureself cause its hardware.
Some guys reported that their phone died after 2 weeks, or 1 month after doin this.

(Sorry for my English, im German)

kup · 12-23-2010, 12:24 PM

What is the overclocking app/package called? What repo?