CODEWITHSUNDEEP
dockerazure-container-instances
SteveHayles
SteveHayles

Reputation: 168

CPU usage graphs on Azure Container Instance

When running a simple Linux container on ACI there is a huge discrepancy between the 'graphed' CPU usage in the portal compared to running 'top' in the container itself.

I can see my process running in 'top' and the cpu usage stays at around 5% and the load on the machine is below 0.10 but the portal reports around 60% usage. It's a single processor container.

Under heavier loads I have seen CPU usage of 300-400 % which feels like an issue related to the number of processors but even this does not add up and as previously stated it's a single processor container

Any thoughts ??

Upvotes: 3

Views: 2892

Answers (1)

djsly
djsly

Reputation: 1628

the ACI CPU Usage metrics seems to be in millicores, not in %. So when you see 300-400 it would be in fact .3 to .4 CPU which for a single CPU would represent 30-40%.

https://learn.microsoft.com/en-us/azure/container-instances/container-instances-monitor#available-metrics

Hoping this helps.

Upvotes: 13

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