timeout_after memory usage

[smmoosavi]

I investigated the memory usage of the timeout_after function. The returned future size is larger than expected. If a future with the size of n is passed into the timeout_after function, the returned future will have the size of n * 4 + 120

It may related to the rust-96084 issue

you can find the example repo here

Environment

RTIC: { version = "2.0.1", features = ["thumbv6-backend"] }
rustc 1.78.0-nightly (d44e3b95c 2024-02-09)

[AfoHT]

Thank you for reporting! I forgot to make a note here during the meeting

Discussed during meeting: hackmd

Matrix: message