Zabbix - Track, record, alert and visualize performance and availability of IT resources
nmon - This systems administrator, tuner, benchmark tool gives you a huge amount of important performance...
Observium - Observium
gtop - System monitoring dashboard for terminal
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
psutil - psutil is a module providing an interface for retrieving information on all running processes and...