Bryan Christianson

Free
ChronyControl provides a simpler way to install and monitor chrony on OS X, while ntpd is the standard clock-syncing software.
Free
Adjust the number of active CPU cores as well as hyperthreading.
Free
Reports changes to files on your system and displays files in a tree structure.
Free
Monitors the temperature sensors of your Macintosh computer.
Free
Run network diagnostics and analyze performance.