Tim Ramlot (Feb 27 2022 at 23:50): Tim Ramlot (Feb 27 2022 at 23:50):Does anyone have experience with snapshotting the state of a wasm instance, storing it to disk and resuming later? Currently, I use store.into_data() and a dump of the instance's memory; but it seems to break after some time. I'm however not sure if I'm unaware of some wasmtime constraints of just have a coding bug.
Chris Fallin (Feb 28 2022 at 17:31):@Tim Ramlot have you seen Wizer? It takes snapshots and saves them as updated Wasm modules (with the captured memory state embedded as memory initializer segments, etc)
Chris Fallin (Feb 28 2022 at 17:32):(also, it uses Wasmtime under the hood, so if you're looking to build a custom solution for some other reason, it may also help work out how to do something like this)
Tim Ramlot (Mar 02 2022 at 19:04):Thank you for your help, I based my solution roughly on Wizer. My custom runtime (based on wasmtime) contained an error. Everything seems to be working fine now. Thank you for the effort & information.
Last updated: Oct 23 2024 at 20:03 UTC