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subscriber: emit data about Waker events #42

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seanmonstar opened this issue Jun 8, 2021 · 0 comments · Fixed by #44

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S-feature

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seanmonstar commented Jun 8, 2021

Next step after #37.

We want to detect a few things with regards to the Wakers related to a Task:

Time from wake to poll
If poll returns Pending but the Waker wasn't cloned.
- While not fool proof, this could be a good-enough heuristic to detect a "forgot to wake".
If wake was called from a different thread, or same thread.
If a wake is called from within poll
- While not wrong, could be a sign to help someone notice a task that "busy loops".

seanmonstar added the S-feature label

This was referenced Jun 8, 2021

Instrument Tokio Wakers #37

Closed

subscriber: emit waker stats #44

Merged

hawkw closed this as completed in #44

hawkw pushed a commit that referenced this issue


          subscriber: emit waker stats (#44)

2d2716b

Closes #42

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