Problems creating a swap file on internal storage

[Guest flshg]

Having seen a few tutorials on the net about creating a swap file (not partition), I tried to do this on the blade, but the stumbling block seems to be the swapon command.

Firstly it seems to me that a swap file located on internal storage (data partition) is possibly faster than on sdcard, and reduce the wear and tear on the sdcard. Secondly, this allows a quick and easy way to enable/disable and resize the swap.

I used a script in init.d but that didn't work at all. So I tried the commands in an adb prompt:

dd if=/dev/zero of=/data/swapfile1 bs=1024 count=65536


mkswap /data/swapfile1

swapon /data/swapfile1

the swapon command returns invalid argument. I then tried

losetup /dev/block/loop0 /data/swapfile1

then

swapon /dev/block/loop0

which I found in another forum post. Again invalid argument.

Anyone know a better way to try this, or see where I've gone wrong? I'm using swedish snow 4b, which has busybox 1.19.0 I think. I'm a newbie on linux and doing this just to experiment with, as it may help with big games that require lots of ram (e.g such as the use of a swap file for temple run suggested in another post).

[Guest flshg]

After doing a bit more reading on this, came to a conclusion that even if it worked it is probably not worth it - there'll be reduced life on the nand.