swaptop

htop-style view of who is using swap and how. Linux only.

go build -o swaptop . && sudo ./swaptop

Without root you only see full detail for your own processes, and the actions need root.

Header: swap bar split into green (owned by processes), yellow (swap cache: in RAM and holding a swap slot, i.e. reserved but not really swapped out) and magenta (tmpfs/shm, not owned by a process). zswap and zram figures appear when present.

Columns: SWAP (in swap now), SWPPSS (proportional share of shared pages), DELTA (change since last refresh), RSS, SWAPPED (share of the process that is in swap).

Keys: Enter per-mapping breakdown · F7 swap a process back in · F8 page a process out (process_madvise, Linux 5.10+) · F2 flush every swap device (swapoff+swapon) · F9 kill · F3 / search · F6 s sort · z show zero-swap processes · c full command line · F1 help · q quit.