First public release of zbench — compare the performance of one or more commands using Linux hardware performance counters (`perf_event_open`), wall-clock time, and peak RSS, with a two-sample t-test for significance.
Highlights
- Hardware counters: cpu cycles, instructions, cache references/misses, branch misses (user-space only).
- Wall-clock time and peak RSS via `wait4`.
- Duration- or exact-run sampling with optional warmup, outlier detection (Tukey's fences).
- Multi-command comparison against a reference, flagging significant regressions/improvements.
Linux-only.
Install
```sh
cargo install zbench
```