RetroArch - RetroArch is a frontend for emulators, game engines and media players.
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.
mGBA - mGBA is an open source emulator of the Game Boy Advance. The goals are speed and accuracy.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
DeSmuME - DeSmuME is a freeware emulator for the NDS roms & Nintendo DS Lite games created by YopYop156.
Zabbix - Track, record, alert and visualize performance and availability of IT resources