How to obtain the length of the current task queue from the runtime

[konghaiya]

How to obtain the length of the current task queue from the runtime，Or how to know how long a task has been queued in the queue

[konghaiya]

We are conducting performance pressure tests and suspect that a significant amount of time is spent on task queuing, but the time spent on this part cannot be counted

[Darksonn]

Perhaps RuntimeMetrics fits your user-case? There is injection_queue_depth and worker_local_queue_depth.

[konghaiya]

let metrics = Handle::current().metrics(); What version does this metric start with? It seems that the 1.27 version I am using does not have this method

[Darksonn]

It is present on Tokio 1.27, but you need to enable unstable Tokio features to use it.

[konghaiya]

Okay, thank you very much