Run_loop_busy metric values

Using FoundationDB
1

We are started to dig deeper to find a reason why our clients are slow and we started to take a look on status json and found a metric run_loop_busy.

On storage nodes we have it almost 0.3. Does this mean that storage servers are freezing for almost 0.3 seconds to process something? Is this normal or we should scale something?

2

Run loop busyness is a measure of what fraction of the time the run loop thread is doing work. A value of 0.3 means it’s only active 30% of the time, and so it should have a good bit of extra capacity.

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