Add a "totals" line to the output of `docker stats`

[NFeruch]

Description

docker stats is a cool and useful command, but it would be even more useful if there were a "totals" line at the bottom, that simply acted as a sum for each column.

I would like to see things like "total memory usage" across all my running container, or "total CPU utilization"

[thaJeztah]

Thanks for requesting. I'm not sure if this would work though, due to how stats are calculated / collected. While it would be possible to sum the stats, those totals won't reflect reality, as they are not all sampled at the same moment; also see;

• https://github.com/moby/moby/issues/39192