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So I've been trying to diagnose an issue with my Ubuntu Server VM running super slow. I run Ubuntu Server 18.04LTS with docker installed. I've been using netdata to try and monitor system stats and it's showing my value for iowait as about 60% constantly.
I feel like it could be because I have all my docker config and data directories located on an SMB share.
I also use transmission and have around 500 torrents on it. Could this be the issue? (In amongst a bunch of other containers)

Not sure how to go about fixing it though.

Any ideas?

Gryu
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Spencer Skinner
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1 Answers1

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Yes, SMB shares with lots of active usage can definitely be the source of large iowait, but not necessarily. To debug, I suggest you install the 'iotop' package, which is like 'top' but shows IO processes.

sudo apt install iotop

Then after installing, run:

iotop

You'll see a running list of which processes are using IO.

Linux Pro
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