tiny.bench.StatisticsCapacity

1pub const Capacity = struct {2    limits: Limits,3    sorted_offset: usize,4    means_offset: usize,5    medians_offset: usize,6    p75s_offset: usize,7    p95s_offset: usize,8    p99s_offset: usize,9    counts_offset: usize,10    storage_bytes: usize,1112    pub fn derive(limits: Limits) DeriveError!Capacity {13        if (limits.samples == 0) return error.InvalidSampleLimit;14        if (limits.samples > std.math.maxInt(u32)) return error.SampleLimitTooLarge;1516        const sorted = try placed(u64, 0, limits.samples);17        const means = try placed(f64, sorted.end, limits.bootstrap_iterations);18        const medians = try placed(f64, means.end, limits.bootstrap_iterations);19        const p75s = try placed(f64, medians.end, limits.bootstrap_iterations);20        const p95s = try placed(f64, p75s.end, limits.bootstrap_iterations);21        const p99s = try placed(f64, p95s.end, limits.bootstrap_iterations);22        const counts = try placed(u32, p99s.end, limits.samples);23        std.debug.assert(sorted.start == 0);24        std.debug.assert(sorted.end <= means.start);25        std.debug.assert(means.end <= medians.start);26        std.debug.assert(medians.end <= p75s.start);27        std.debug.assert(p75s.end <= p95s.start);28        std.debug.assert(p95s.end <= p99s.start);29        std.debug.assert(p99s.end <= counts.start);30        return .{31            .limits = limits,32            .sorted_offset = sorted.start,33            .means_offset = means.start,34            .medians_offset = medians.start,35            .p75s_offset = p75s.start,36            .p95s_offset = p95s.start,37            .p99s_offset = p99s.start,38            .counts_offset = counts.start,39            .storage_bytes = counts.end,40        };41    }42};

1pub const StatisticsCapacity = stats.Capacity;