How much network traffic is sent out by the runners?

[yuvalshi0]

Hi,
We recently started hosting our runners using the actions-runner-controller on our personal EKS, after a few days, we started seeing a high NAT bill (which is priced by the amount of data sent our through the Nat), I wanted to know, how much traffic does the runner trasmit? GB's? MB's?

[TingluoHuang]

it depends on what you do within your workflow job, the runner itself should not consume much network traffic.

• Do you upload lots of artifacts during your workflow?
• Do we have lots of log content generated as part of your job?
• Any other outbound communication your job tries to do?

[yuvalshi0]

We run a python job, about ~10 minutes, 10 runners , very verbose (log wise, we print the test stdout), we do use the setup-python caching, which probably uploads a large artifact (?), I see we output about ~2GB per run, does that sounds plausible ?