Get some metrics / stats from tokio runtime

[BratSinot]

Greetings!

Any way to get some stats from tokio like number of threads, task, opened connections etc?

[hds]

You probably want to have a look at tokio console (https://github.com/tokio-rs/console) and/or tokio-metrics (https://github.com/tokio-rs/tokio-metrics).

[BratSinot]

Thanks!

tokio-metrics seems is what I need (I saw it in docs, but it was in old tokio, and I think it just dropped).

[Noah-Kennedy]

@BratSinot there is an unstable API for this: https://docs.rs/tokio/latest/tokio/runtime/struct.RuntimeMetrics.html

[BratSinot]

Thanks!

I saw stat feature and tried to use it and missed RuntimeMetrics.

[Darksonn]

The stat feature also requires the tokio-unstable flag. See docs.rs/tokio#unstable-features for details on how to enable unstable features.

[Noah-Kennedy]

@BratSinot the parts of tokio-metrics that you would want are built on top of RuntimeMetrics, and thus require the unstable flag as well.