Burrow force GOMAXPROCS to be equal to runtime.NumCPU()

[dethi]

When running Burrow on Kubernetes, we see a lot of CPU throttling during the initial startup. This happens because of the CPU limit we set on the container.

Two way to fix this:

1. manually setting GOMAXPROCS environment variable to match the CPU limit
2. auto-adjustment by looking at the cgroups. The most popular package to do that is: https://github.com/uber-go/automaxprocs

Unfortunately, Burrow force GOMAXPROCS to be equal to the number of CPU cores main.go#L71 (which in a container, is equal to the number of CPU cores of the host, not the container), so I can't set GOMAXPROCS manually.

• Would you consider a PR that use automaxprocs?
• Or at minimum a PR that add a configuration to disable main.go#L71?

[dethi]

@bai any thought?

[joseronierison]

👍

Currently we are setting the GOMAXPROCS manually, but it would be better to have a automatic configuration for that using the automaxprocs .