Enum BenchTarget 

pub enum BenchTarget {
    Vm,
    Rust,
    WasmGc,
    WasmGcV8,
}

Bench targets — picks which backend runs the scenario.

Variants

Vm

In-process VM via vm::compile_program_with_modules.

Rust

Native Rust binary produced by aver compile --target rust + cargo build --release. Subprocess spawn per iteration.

WasmGc

In-process wasm-gc backend via wasmtime with the GC + tail-call proposals enabled. Compiles once with aver compile --target wasm-gc, instantiates + invokes per iteration. wasmtime’s GC heap is the ceiling for alloc-heavy scenarios — the V8 column (below) is the production-relevant number for any wasm-gc deploy that lands in a browser, Cloudflare Workers, Node, Bun, or Deno. Keep both around so the gap is visible.

WasmGcV8

Same wasm-gc bytes (aver compile --target wasm-gc), executed under V8 via Node 22+ and tools/wasm-gc-bench-v8.mjs. Spawns one Node process per scenario, parses raw sample timings off stdout, then stitches the full BenchReport Rust-side. Memory project_v8_vs_wasmtime_gc.md documents the engine gap that motivates the dual column (string_interp is 2300× faster on V8 than on wasmtime as of 0.17.2). Requires node v22+ on PATH or under ~/.nvm/versions/node/v22.* — earlier Nodes ship a V8 that rejects packed i8 arrays.

Implementations

impl BenchTarget

pub fn parse(s: &str) -> Result<Self, String>

pub const fn name(self) -> &'static str

Trait Implementations

impl Clone for BenchTarget

fn clone(&self) -> BenchTarget

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for BenchTarget

impl Debug for BenchTarget

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for BenchTarget

impl PartialEq for BenchTarget

fn eq(&self, other: &BenchTarget) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for BenchTarget