How to Change the Process Priority on a Mac
- 1). Click "Applications" on the Dock, then "Utilities." Click "Activity Monitor." Leave this application open.
- 2). Click "Applications" on the Dock, then "Utilities." Click "Terminal."
- 3). Check in Activity Monitor for the process you want to change. Each process is assigned an ID, the PID (process ID). Make a note of the PID.
- 4). Switch back to Terminal.
- 5). Type "nice +20 -p 0000" (without quotes). Replace the "+20" with a value between "+20" and "-20." -20 is the highest priority item and +20 is the lowest priority item. The "-p" parameter determines to affect a process. Replace "0000" with the process ID (PID) for your process. Press "Enter."