Alice [email protected]
Futures created by async/await in Rust store this data in a slightly more efficient manner. In our example, we store every variable in a separate struct since I think it’s easier to reason about, but it also means that the more variables we need to store, the more space our coroutine will need. It will grow linearly with the number of different variables that need to be stored/restored between state changes. This could be a lot of data. For example, if we have 100 state changes that each need one distinct i64-sized variable to be stored to the next state, that would require a struct that takes up 100 * 8b = 800 bytes in memory.