Typically for spot checking I use htop or nmon running on the host. I can split a screen 4 ways in tmux and run 4 ssh sessions running htop within, but this makes for a very busy screen.

That approach is easy, because it does not require a monitoring server setup, and a simple character mode display refreshes faster than a web delivered chart.

Does anyone know of simple utility like an htop or similar to pg_view [1] that works well on small window segments?

[1] https://github.com/zalando/pg_view