Area(s)

area:go

What's missing?

The deprecated runtime metrics have the following useful GC metrics:

• process.runtime.go.gc.count
• process.runtime.go.gc.pause_ns

The GC count is often useful for debugging memory issues in code, and I think this should be added to the new runtime metrics as (e.g.) go.memory.gc.count.

Having a pause time histogram is useful as well. I see discussion in the original ticket for the new runtime metrics that suggests this one in particular can be a poor signal: golang/go#67120 (comment)
However, it seems that there was never a recommend metrics for pauses made (at least none that I see in the current list), so I suggest adding this value to the new runtime metrics as (e.g.) go.memory.gc.pause.duration.

Describe the solution you'd like

New runtime metrics added:

• go.memory.gc.count
• go.memory.gc.pause.duration

Tip

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