Memcached high CPU load without usage

[markuszeller]

Installed memcached via sudo apt install libmemcached-dev .

Launching it with sudo service memcached start instantly consumes high CPU load without anything else beeing done. Using it in PHP for example works fine, but the CPU load keeps high until service is stopped.

Microsoft Windows [Version 10.0.19041.388]
Ubuntu 20.4 from Store

C:\WINDOWS\system32>wsl -l -v
NAME STATE VERSION

• Ubuntu Stopped 1

Looking with htop in WSL itself, the CPU usage of the memcached is 0. RAM about 400 MB.

[onomatopellan]

19041
Ubuntu 20.4 WSL1

It's not recommended to use Ubuntu 20.04 WSL1 in build 19041 or you will hit #4898.
You need to convert Ubuntu distro to WSL2, use one of the available workarounds or wait for the fix to come via Windows Update..

[markuszeller]

The problem is, that WSL2 does not work with VirtualBox, so I need to use WSL1. I have no issues at all, only the high CPU load. So I am starting the service only when needed.

[onomatopellan]

That's because libc6 and thus sleep are broken in Ubuntu 20.04 WSL1 build 19041.
Try this workaround:
#5125 (comment)

[therealkenc]

Confirmed just to be sure that was it

/dupe #4898

[ghost]

Hi! We've identified this issue as a duplicate of another one that already exists in this repository. This specific instance is being closed in favor of tracking the concern over on the referenced thread.

Thanks for your report!