StatsD might be a bit more popular than Observium. We know about 2 links to it since March 2021 and only 2 links to Observium. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Environment-wide stats such as disk utilization and load averages can be done using Observium with very minimal effort required to get started (no additional agent required as it monitors using SNMP, and it automatically detects what to monitor on a system / UPS / PDU / etc). Source: over 2 years ago
If you're looking for a tool that can graph resource utilization for a large number of device types out of the box using SNMP, you might take a look at Observium. Source: over 2 years ago
StatsD is a network daemon that listens for statistics, like counters and timers, sent over UDP or TCP and sends aggregates to one or more pluggable backend services. - Source: dev.to / almost 2 years ago
If you are essentially tracking an incremental number, statsd was made specifically for this task. It's lightning fast and you can setup different metrics for each scenario you mentioned. Source: about 2 years ago
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Prometheus - An open-source systems monitoring and alerting toolkit.
LibreNMS - A fully featured network monitoring system that provides a wealth of features and device support.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services
Icinga - Icinga is a fork of Nagios and is backward compatible.
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.