I am using Ubuntu 12.04 32-bit. My kernels are PAE kernels. I know these are the kernels we can use for 32-bit OS which have 4 GB RAM, to utilize all 4GB of RAM.
My system is a 32-bit system. So I thought I don't need them. What are the advantages and disadvantages I am going have if I keep running PAE kernels?
raja@badfox:~$ uname -a Linux badfox 3.2.0-24-generic-pae #39-Ubuntu SMP Mon May 21 18:54:21 UTC 2012 i686 i686 i386 GNU/Linux