rmon

Terminal system monitor with disk benchmarking.

Panels for cpu, gpu, network, disks, processes, and memory. Process tree, per-process threads, live filtering, kill, mouse support. Network and disk rows hide when idle and appear when they see traffic.

The disk benchmark measures sequential read/write MB/s and random 4k iops with latency percentiles. Results append to ~/.rmon/bench_history.jsonl.

Runs on Linux and macOS.

usage:

rmon
rmon bench [--path DIR | --device DEV] [--size-mb N] [--secs N]

keys:

q           quit
c/m/i/n     sort procs
f or /      filter procs
t           threads of selected process
e           process tree
h           show idle interfaces/disks
k           kill selected process
s           system info
+ / -       refresh speed
b           disk benchmark