How to find out which processes are using swap space in Linux?

Question

Under Linux, how do I find out which process is using the swap space more?

Answer 1

iotop is a very useful tool. It gives live stats of I/O and swap usage per process/thread. By default it shows per thread but you can do iotop -P to get per process info. This is not available by default. You may have to install via rpm/apt.