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Export metrics about the blocking thread pool #5156

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duarten opened this issue Nov 1, 2022 · 1 comment · Fixed by #5161
Closed

Export metrics about the blocking thread pool #5156

duarten opened this issue Nov 1, 2022 · 1 comment · Fixed by #5161
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A-tokio Area: The main tokio crate C-feature-request Category: A feature request. M-metrics Module: tokio/runtime/metrics

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@duarten
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duarten commented Nov 1, 2022

Is your feature request related to a problem? Please describe.

I'd like to have insight into how many threads are currently created in the blocking thread pool and what the main queue length is.

Describe the solution you'd like

These metrics coul be exported as tokio-metrics or there could be some API to fetch their values.

Describe alternatives you've considered

N/A

Additional context

N/A
@duarten duarten added A-tokio Area: The main tokio crate C-feature-request Category: A feature request. labels Nov 1, 2022
@Darksonn Darksonn added the M-metrics Module: tokio/runtime/metrics label Nov 1, 2022
@Darksonn
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Darksonn commented Nov 1, 2022

This sounds reasonable.

@duarten duarten mentioned this issue Nov 3, 2022
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carllerche pushed a commit that referenced this issue Nov 4, 2022
@duarten
rt: export metrics about the blocking thread pool (#5161)
23fdd32 
Publish the blocking thread pool metrics as thread-safe values, written
under the blocking thread pool's lock and able to be read in a lock-free
fashion by any reader.

Fixes #5156
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A-tokio Area: The main tokio crate C-feature-request Category: A feature request. M-metrics Module: tokio/runtime/metrics
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runtime: export metrics about the blocking thread pool duarten/tokio
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@duarten @Darksonn