What is WirelessRadioManagerd and why is this process running on my Mac?

Let's take a look again Activity indicator of the Apple Mac and pick out an interestingly named process. Then we'll see what it's used for under macOS. In this way, we are gradually expanding the list of Mac background processes, thanks to which we can understand the system a little better. Today is WirelessRadioManagerd your turn. In contrast to short-named processes, this one stands out because its name is mostly spelled out. But no problem, WirelessRadioManagerd is save malicious software.

WirelessRadioManagerd is an intentional and useful process under macOS on the Apple Mac. Without it, several features for wireless collaboration with other devices would not be possible.
WirelessRadioManagerd is an intentional and useful process under macOS on the Apple Mac. Without it, several features for wireless collaboration with other devices would not be possible.

WirelessRadioManagerd under macOS: Management of the Mac's radio technologies

The name of the process WirelessRadioManagerd is largely self-explanatory: Wireless Radio Manager Daemon. It is an independently acting background process that is useful as a computer-human interface and is intended to make the Mac easier to use (see. What is a daemon?). He takes care of wireless radio technologies and their application with the appropriate hardware, i.e. the WLAN and Bluetooth chips.

The WirelessRadioManagerd daemon is used, for example, when sharing files or information via AirDrop, when making iPhone calls on the Mac, when using handoff functions, when streaming something via AirPlay, and so on. In the test, I observed an increase in CPU load when I sent a video via AirDrop from the iPhone to the Mac - from 0,0% to 0,1% on a MacBook Pro with M1 Pro and macOS Sonoma. By the way, WirelessRadioManagerd was introduced in 2015 OS X 10.11 El Capitan.

WirelessRadioManagerd with high CPU load: what to do?

Personally, I have not yet come across this process using up the CPU or taking up a significant amount of RAM. However, if WirelessRadioManagerd causes a high CPU load, I would restart the Mac. There can be several reasons for the malfunction - a bug in radio communication or in an app, a hardware error or something else. By restarting the hardware and operating system, you can take immediate action against many possible causes and will probably solve the entire problem with this and other processes.

Conclusion: A background process necessary for macOS

Ultimately, we can say that WirelessRadioManagerd is an important process of the Mac operating system macOS. It manages wireless device combinations such as Handoff, AirDrop, AirPlay and the like. He is also responsible for debugging and its documentation if you this StackExchange thread may believe. By double-clicking on the process in the Activity Monitor list, I was also able to find out that it came directly from launchd is started. This is always a sign that there is no need to doubt the seriousness of a process.

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In the Sir Apfelot Blog you will find advice, instructions and reviews on Apple products such as the iPhone, iPad, Apple Watch, AirPods, iMac, Mac Pro, Mac Mini and Mac Studio.

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