src/test/bench.zig


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const std = @import("std");

const Ts = std.Io.Timestamp;

fn benchmark(name: []const u8, iters: usize, func: fn () anyerror!void) !void {
    const io = std.Io.Threaded.global_single_threaded.io();
    const clock = std.Io.Clock.cpu_thread;
    const start = clock.now(io);
    for (0..iters) |i| {
        _ = i;
        try func();
    }
    const stop = clock.now(io);
    const ns: f64 = @floatFromInt(start.durationTo(stop).nanoseconds);
    const secs = ns / 1_000_000_000;
    std.debug.print(
        "bench {s} x {}: {d:.3}s\n",
        .{ name, iters, secs },
    );
}