You view the Activity Monitor and notice a process that you have never seen before: UserEventAgent. Do you have to be worried? No. This is the main process of macOS. This article explains a part of our current series processes detected in the Activity Monitor such as kernel_task, mdsworker, launchd, blued, hidd, opendirectoryd, WindowServer, installd, backup, powerd, coreauthd, configd, mdnsresponder, and almost all the others. Don’t understand what kind of services they are, and all tech issues are a classic horror for you? Just start to read the article below!
The current process named UserEventAgent is considered to be a daemon, which means that it works in the background. UserEventAgent keeps under control all kinds of the work processes of your system at the user level. To quote the management page for the process:
The UserEventAgent utility is a daemon that loads system-provided plugins to handle high-level system events which cannot be monitored directly by launchd.
It’s not quite clear for the moment, so let’s break it down. Previously, we talked about the process of configd, which works in the background and tracks the position of all sorts of things about your Mac. For example, configd monitors whether you are on the network or not, and warns about other programs that you use when this situation changes. There is a set of configd plugins that enable the process to do it.
UserEventAgent plays the same role as configd itself, but it controls a set of characteristics that configd does not have the ability to modify, mainly because configd is considered as system-wide and is derived from the root, and UserEventAgent targets your user account and is working at the user account level. You can make it more tangible by looking at the plugins that UserEventAgent controls:
they’re in /System/Library/UserEventPlugins.
In the UserEventPlugins folder, you’ll find plugins related to Bluetooth, BonjourEvents, configuration network, time zones, Time Machine, including the Touch Bar. Some of them may be folders with password. UserEventAgent keeps the position of all these things under control and reports the status of the applications you apply.
There is a large number of possible bases for which UserEventPlugins will begin to apply a large number of system resources. There are some leading things that you can try if you notice a surge in the use of resources with support of UserEventPlugins. The first thing needed (not surprisingly) is to restart the Mac. It is rudimentary, but most of the problems will be gone. In case the problem is not resolved, remember to turn off each equipment or software you added. In the case it stops the high resource usage you will most likely find a bug: stop the implementation of software or the equipment in question, and then look whether there is a software update that resolves the issue.