nmon - This systems administrator, tuner, benchmark tool gives you a huge amount of important performance...
Zabbix - Track, record, alert and visualize performance and availability of IT resources
vtop - vtop is a graphical command-line tool that uses unicode braille to chart CPU and memory usage.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
psutil - psutil is a module providing an interface for retrieving information on all running processes and...
Prometheus - An open-source systems monitoring and alerting toolkit.