Ashanti Mutinta (Apr 03 2024 at 17:14): Ashanti Mutinta (Apr 03 2024 at 17:14):Weird question but how far does fuel determinism go? If use core_affinity and limit the number of instructions based on fuel, Would that be close to cpu instructions count?
Alex Crichton (Apr 03 2024 at 17:29):Fuel should deterministically limit wasm execution beyond a certain point. You'll still have nondeterminism from host APIs or host interactions (e.g. memory.grow failing or not). Fuel is not an accurate measure of CPU instructions and for that you'll want to use CPU perf counters
Ashanti Mutinta (Apr 03 2024 at 17:54):I see thank you! No api in wasmtime to facilitate this I'm guessing :thinking:
Lann Martin (Apr 03 2024 at 18:01):Not directly, but see https://docs.rs/wasmtime/19.0.1/wasmtime/struct.Store.html#method.call_hook
Ashanti Mutinta (Apr 03 2024 at 18:07):Amazing thank you
Last updated: Dec 23 2024 at 14:03 UTC