Why don't most Android devices have swap area as typical OS does?

Question

Does any Android today support swap area which is suppose to boost the performance?

What are the considerations that make most Android devices drop that feature?

Answer 1

Android does support swap... Don't forget it's just plain Linux with some UI on it. :)

However the support is dependent on the kernel you are using.. When using a kernel you should know if it supports swap space or not..

If you are good in kernels, then grab the source, enable swap support and compile it. I guarantee that should be fun :p

Personally my kernel supports swap space and I use a 20 MB file to act as a swap file.