ref-fvm

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feat: wasmtime v25

3

Importantly, this reverts a previous wasmtime change that enabled trace-logging in regalloc, massively slowing down compilation across all FVM versions. fixes #2058

Stebalien

[Investigation] Reported performance regression when updating wasmtime from 19 to 24.

20

We've seen a reported performance regression that appears to be associated with the wasmtime update that happened in FVM 4.4 (wasmtime 19 -> 24). This was an interesting performance regression...

Stebalien

Re-Price Method Invocation

1

Benchmarking wasmtime 24 v wasmtime 19, it looks like invoking smart contracts may have gotten cheaper. The data I have is pretty fuzzy but it may be as much as...

Stebalien

get_beacon_randomness returns OutOfGas with epoch from the future

1

When testing the new randomness syscall (implemented in built-in actors), which allows the caller to specify the epoch, @ZenGround0 received an out-of-gas when using an epoch from the future. The...

anorth

This PR refactors the AMT mplementation by replacing internal iteration via `for_each_mut` with external iteration using `iter_mut` and adds a test case showing the use case of the `iter_mut` function...

Sahilgill24

switch from async to rayon [v3]

6

This switches from async rust to using rayon for conformance test parallelism. I'm making this PR against FVM v3 because we currently have conformance tests there. **Motivation**: - Primary: Remove...

Stebalien

It has been deprecated and we only use it in the bundler and the conformance tests, and only there because we inherited it from the car library we pulled from...

Stebalien

Wasm Module Metadata

4

Currently, the FVM references wasm modules directly on-chain as raw-blobs. However, this doesn't leave any room for additional metadata. Ideally, we'd add a new multicodec for "wasm" code so we...

Stebalien

We have fuzzers for the KAMT, HAMT, and AMT but these fuzzers only test set/get/remove/flush. Importantly, they don't test: 1. Flush and reload from CID (just periodic flushes). 2. `set_root`....

Stebalien

Specifically, `wasmtime::Config::table_lazy_init`. We can now turn this off for slower startup time but potentially faster execution time. But we need to make sure that doesn't affect our module instantation timing....

Stebalien