If both charts are now in control, extend the control limits for ongoing monitoring. An important consideration in using X-bar/R charts is the selection of an appropriate subgroup or sample size.

Trend charts are used to monitor your process change over time. They can be used to identify trends going up or down, special patterns, or unusual occurrences.

When you launch Activity Monitor (available by default in the "Utilities" folder), you can view the main window by pressing "command-1" or by selecting "Activity Monitor" from the "Window" menu.

In UNIX, each process has a pid (process ID), a name, owner (user or another process), threads (paths of execution), and runtime. Using Activity Monitor on macOS ...

Built into macOS, Activity Monitor shows you a list of all running apps and processes and reveals the biggest hogs based on CPU, memory, energy use, disk use, and network bandwidth.