What is Nsurlsessiond and why do you use many CPU and Network resources on Mac?

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Stealth
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If the Nsurlsessiond process uses a lot of CPU and Network resources on MAC, this short informative article will help you understand why this is happening and what is the solution.

When a computer begins to work harder than usual, it is clear that a system or application process has begun to use an important percentage of CPU resources. Even though most users think it could be a virus, there are also legitimate system processes that can use significant resources in certain spit.

What is Nsurlsessiond and why do you use many CPU and Network resources on Mac?

Nsurlsessiond is a legitimate process of maccos operating systems. It runs in the background and is responsible for several tasks, including: managing transfers and data downloads in the background, storing cookies, cache management and redirects. The process is used by both Apple applications: iCloud, App Store, Safari, as well as other applications that need to transfer data in the background.

NSURLSessionD on macOS
NSURLSessionD on macOS

Therefore, if the Nsurlsessiond process causes performance problems through the excessive use of CPU or Network, it means that there are applications that make data transfers in the background.

In my shingle, this process began to use significant resources by CPU and Network after transferring a large volume of data from an external disk to a Mac location that was synchronized in iCloud.

If you have work on Mac and this process uses a large percentage of resources and affects the system performance, you can force it to stop.

1. Open Activity Monitor.

2. Double click on the process NSURLSessionD.

3. Click “Quit"Then click"Force Quit“.

It is not advisable to stop this process forcibly if you are not sure that it is not used by an important application.

I've been writing passionately since 2004 about Windows and Linux operating systems, and since 2010 I've become a fan of Apple University. I'm currently writing tutorials for Mac, iPhone, iPad, Apple Watch, AirPods, and other Apple devices.

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