Maxing out the CPU

After the computers wakes up after a deep slumber, i.e. post hiberation the CPU seems to spike. The vmmem process is always the guilty party.. The process is used by Hyper-V to deal with the CPU and memory of the virtual machines, and in my case WSL (Windows Subsystem for Linux).

This make all WSL sessions hang and the behaviour does not stop until we forcefully suffocate the vmmem process.

Let’s face it, locating the service in the GUI, or using a privileged admin session can be quite boring, especially when I keep forgetting the name. There are plenty of ways to get the job done, but here’s my go-to method for achieving sweet, sweet tranquility.

I’ve got a shortcut file on the Desktop which simply kills the wslservice:

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe taskkill /f /im wslservice.exe

Once I’ve executed this as admin we are back at a 2% CPU usage, aaaah good times