How does the performance of this wasm interpreter compare to native execution? Are we getting close?
And you’re comparing against wasmtime.pulley, which is their optimising interpreter. How does it stack up against wasmtime’s cranelift compiler?
The geomean of performance of Wasmi compared to baseline JITs across all benchmarks in the repository ranges from 2.5-5.2x slower depending on hardware. And compared to opimizing JITs geomean ranges from 5.3-10.7x slower.
Wasmtime's Pulley is a very interesting interpreter. It isn't the fastest but it is the only Wasm interpreter that sits behind an elaborate optimization pipeline. Thus if you feed unoptimized Wasm, it would likely outperform the other interpreters. However, unoptimized Wasm is extremely uncommon.