Compare software

nmon vs sysstat: catalog facts
nmon	sysstat
Free Free to download.	Free Free and open source.
Linux, Command line	Linux, Command line
Many metrics on one screen with low CPU impact Records to CSV for later analysis	Records historical activity data with sar for later review Covers CPU, disk, per-process and network statistics
Terminal only, with keyboard toggles to learn Mainly aimed at Linux and AIX servers	Linux only Text output with no graphical interface
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.