86 replies to this topic

[-Stevo-]

SwapScriptv2.1.1
Flash from Recovery
Compatible with 2 and 3 partition layouts (ext(fat+ext+swap) and no ext(fat+swap))
http://www.mediafire...qdvxh7sos5svcvc
or
http://www.sendspace.com/file/h66oap

This script adds commands to terminal:

swapscriptv2
bootswapv2
swap-off
bootswap-off
vmtweaks
vmtweaks-boot

swapscriptv2 - you will be asked what partition layout you are using as well as swappiness, optional vm settings prompted

bootswapv2 - you will be asked what partition layout you are using as well as swappiness, and an init script will be placed for swap at boot time, optional boot time vm settings prompted

swap-off turns off active swap partition (error for parition not in use is normal)

bootswap-off removes bootswap init file.

vmtweaks allows changing settings for vfs_cache_pressure and page-cluster, some people have reported success in reducing these values.

vmtweaks-boot allows changing settings for vfs_cache_pressure and page-cluster and applying them at boot.

Let me know if there are any problems with the new script.


SwapScript: (v1)
Flash from Recovery
fat32+ext+swap or swap on /dev/block/mmcblk0p3
http://www.mediafire...bnc79k6pkespzbj

fat32+swap no ext or swap on /dev/block/mmcblk0p2
http://www.mediafire...b3ykdk3r21js96q

This script adds several commands to terminal:

swapon10
swapon20
swapon30
swapon40
swapon50
swapon60
swapon70 
swapon80 
swapon90 
bootswap10 
bootswap20
bootswap30
bootswap40
bootswap50
bootswap60
bootswap70 
bootswap80 
bootswap90 
swap-off
bootswap-off

Instructions
swaponXX (20,30,40,50,60) - will result in swap being turned on with a swappiness of XX
bootswapXX (20,30,40,50,60) - will enable swap at boot time with a swappiness of XX (no usuerinit.sh needed)
swap-off - Turns running swap off.
bootswap-off - removes init swap script from boot. (see above notes for removal if you used the newer script)

SWAPFILE CREATOR:
http://www.mediafire...yr7w2yd5sfobyte

For anyone interested in testing different swap sizes and swappiness or those with no partition other than the standard fat, I threw together a swapfile script allowing for several common configurations. Similar to my swapscript after flashing from recovery a number of new commands will become available in terminal:

Instructions
First create a swap file on your sdcard or sd-ext partition:

swapfileXX (size 12,24,36,64,96,128 on sdcard fat partition)
extswapXX (size 12,24,36,64,96,128 on sdcard ext partition)

Then set swappiness:

swpXX (XX is swappiness in increments of 10 up to 90)
errors in script are normal, script references both fat and ext locations, will fix this next update

swapfile-off (stop swap file in use)
errors in script are normal, script references both fat and ext locations, will fix this next update
clearswapfile (stops swap file and removes all swap files created)
errors in script are normal, script references both fat and ext locations, will fix this next update

Swapfile at boot ONLY SUPPORTED FOR SWAPFILE ON EXT:

bootswapfileXX (XX is swappiness in increments of 10 up to 90)
bootswapfil-off - removes bootswap

SwapFileScript:
http://www.mediafire...yr7w2yd5sfobyte


How to tell if swap is currently in use:

in terminal emulator or adb shell type 'free' with no 's and press enter

if there is a number in the space that says swap you have swap enabled.

Edited by -Stevo-, 09 October 2010 - 06:41 AM.

[Tony319]

I'm pretty good with everything about my myTouch, the only thing I don't get fully is the idea of the EXT swap. I know it allows A2SD but I really don't need that. So, since i don't use that option, would turning my swap off be a good idea? I'm not sure how all the values (20, 30, etc.) would affect performance. Mine's pretty fast most of the time so I don't know the advantages/disadvantages.

[petermikhail]

anyway to set it more then 60 like say 90 or 96

[parkenshaw]

Nah, works well, deems somethin went wrong when I downloaded the file, had to get a fresh copy and re-flash.

[wulfn]

Having problems when trying to enable it. keeps saying permission denied

cannot create /sys/class/leds/blue/brightness: permission denied.


Sorry, first time trying to enable swap

[smashman42]

Had you run "su" first?

Btw Stevo, the no ext swap-off script is (was?) pointing to partition 3 not 2.

[-Stevo-]

smashman42, on 08 June 2010 - 04:45 AM, said:

Had you run "su" first?

Btw Stevo, the no ext swap-off script is (was?) pointing to partition 3 not 2.

thanks for catching that. updated it.

[smashman42]

bootswap-off has the same single digit typo, I've only got my phone atm, if I had my laptop with adb I'd fix it myself.

Shell scripts I can do from ubuntu experience, I don't know how to make flashable zips yet

[wulfn]

smashman42, on 08 June 2010 - 04:45 AM, said:

Had you run "su" first?

Btw Stevo, the no ext swap-off script is (was?) pointing to partition 3 not 2.

Whoops, my bad. Haha, thax seems it fixed it

[dinky]

Stevo, you are truly amazing, and next to Cyanogen, my android hero. Thanks so much for all your awesome scripts... it has made using this device a joy. Wiping my ext partition shortly (no need for it on my sdcard), and using your script to replace the userinit.sh file I'd placed on my ext partition to enable swap. Thanks again matey!

[noinoi2424]

-Stevo-, on 30 May 2010 - 04:36 PM, said:

If you have an EXT-Partition+Swap:
SwapScript-signed.zip

If you are using ONLY a swap partition and NO-EXT:
SwapScript-noext-signed.zip

This script adds several commands to terminal:

swapon20
swapon30
swapon40
swapon50
swapon60
bootswap20
bootswap30
bootswap40
bootswap50
bootswap60
swap-off
bootswap-off

swaponXX (20,30,40,50,60) - will result in swap being turned on with a swappiness of XX
bootswapXX (20,30,40,50,60) - will enable swap at boot time with a swappiness of XX (no usuerinit.sh needed)
swap-off - Turns running swap off.
bootswap-off - removes init swap script from boot.

hi! just wondering, what is this gonna do with my G1? does it make it faster? how about the JIT on or off? let me know. thank you...

[Ed Boy]

noinoi2424, on 10 June 2010 - 02:57 PM, said:

hi! just wondering, what is this gonna do with my G1? does it make it faster? how about the JIT on or off? let me know. thank you...

There is an amazing website which could help you in future: it's called Google and it holds the answers to all these questions and more!

Swap stores info for the your system to retrieve; for example some people find web pages are kept in memory more successfully and don't have to reload when switching between windows in the browser; the downside is it shortens the life of your SD card.

There is a good post about JIT and it's costs/benefits here.

[dinky]

So now I've got swap working, and this nifty little blue led to prove it... ok guys, how do I turn the light off. I'm assuming it's there to tell me I'm shortening the life of my sdcard, but I can live with that and prefer not to have a constant reminder. Is there an easy way to disable it, or do I need to hack Stevos script. Thanks.

[dinky]

dinky, on 11 June 2010 - 01:01 PM, said:

So now I've got swap working, and this nifty little blue led to prove it... ok guys, how do I turn the light off. I'm assuming it's there to tell me I'm shortening the life of my sdcard, but I can live with that and prefer not to have a constant reminder. Is there an easy way to disable it, or do I need to hack Stevos script. Thanks.

Right, use bootswap and reboot. Great script!

[parkenshaw]

Some people have been specifying that swap on leads to a good slow-down... But I have to admit, its made my G1 feel a whole lot zippier, decided to leave it on. Great work on the scripts.

[chucktdriscoll]

parkenshaw, on 11 June 2010 - 01:54 PM, said:

Some people have been specifying that swap on leads to a good slow-down... But I have to admit, its made my G1 feel a whole lot zippier, decided to leave it on. Great work on the scripts.

The trade off is slower access to ram (swap on) or re-loading apps into ram frequently (swap off). The gains you'll see will depend mostly on how much real ram your phone has and how many apps you use often. Little ram or lots of apps will benefit from swap more that lots of ram or few apps.

[TheGenericAsian]

I fixed the Wiki article so it tells you (hopefully) useful things. http://wiki.cyanogen...p_and_Compcache

[renn9420]

Is it possible to release a version with a swap and bootswap of 10?

[fsr678]

I installed this and tried swap using a swap partition. I decided to not use swap.

Do I..or should I..remove this script or is it ok to just leave it on the system? I don't plan on using it but have no idea how to go about removing it.

Thank you!

[motoman234]

@Stevo,

Would it be possible to make this delightful script for cm6. It makes life a lil easier