diff options
Diffstat (limited to 'test/perf.zig')
| -rw-r--r-- | test/perf.zig | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/test/perf.zig b/test/perf.zig index 8f463204..5ac38ccf 100644 --- a/test/perf.zig +++ b/test/perf.zig @@ -200,6 +200,10 @@ fn measureStartup(io: std.Io, reps: usize, json: bool) !void { bytes += counter.bytes; peak = @max(peak, counter.peak); } + // Every other measurement in this file checks the session gave + // everything back; a boot that leaks is exactly what a startup + // benchmark should be the first to notice. + if (counter.live != 0) return error.LeakedStartupMemory; } std.mem.sort(u64, init_samples, {}, std.sort.asc(u64)); std.mem.sort(u64, frame_samples, {}, std.sort.asc(u64)); @@ -212,7 +216,10 @@ fn measureStartup(io: std.Io, reps: usize, json: bool) !void { .reps = reps, .cold_ns = cold_ns, .init_median_ns = init_samples[reps / 2], - .init_p95_ns = init_samples[@min(reps - 1, reps * 95 / 100)], + // A p95 needs at least twenty samples to be one; below that this + // is the maximum and says so rather than dressing it up. + .init_p95_ns = if (reps >= 20) init_samples[reps * 95 / 100] else init_samples[reps - 1], + .init_max_ns = init_samples[reps - 1], .frame_median_ns = frame_samples[reps / 2], .allocations = calls / reps, .allocated_bytes = bytes / reps, |