Basic question, I can't find anything on Google about it. There's a process that keeps my fans spinning, and consumes about 80% cpu.

xClient -- what is it, or how can I find out more about it?

  • 1
    I goggled on "xclient process mac" and had a bunch of hits. You might try that. Some of the links refer to X11 and Xquartz. Among other things those are used to run x-windows processes on Mac.
    – Natsfan
    Jul 9, 2018 at 15:47

2 Answers 2


Open Activity Monitor and sort by CPU. Then select the item and click the information icon (circle with a lower case i)

Then you can see all the open files and ports. That should give you a ton of system files that make no sense, but you should get a path to the file or some details to post if you can't figure out straight away where it's located and what files it's reading. (Worst case upload the files to a GitHub gist or pastebin and link to me in the comments below)


What xClient is

I also see this running about once day. This is likely part of the "Snow Inventory Client".

After getting the Process ID (PID) - let's say it's 11211, I ran this (note that the $ is the prompt and not part of the command)

$ sudo lsof -p 11211

and two of the items displayed are:

  • /usr/local/bin/xMetering
  • /Library/Application Support/Snow Software

Googling for xClient and xMetering brings up a PDF describing the Snow Inventory Client. The configuration file (/etc/snowclient.conf) mentioned in the PDF also exists on my system, with a SiteID being my company's name.

Managing its High CPU usage

xClient is a CPU hog. I use cputhrottle to limit it, which can be installed via Homebrew.

Example usage. Suppose xClient's PID is 11211 and you want it to take no more than 10% of CPU (on average). You'd run this in a Terminal:

$ sudo cputhrottle 11211 10

Note that this is 10% of a single CPU core. The cputhrottle command will keep running until the throttled process (in this case, xClient) exits.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .