BenchmarkRollsum

rollsum_bench.go

func BenchmarkRollsum(b *testing.B) {
	const bufSize = 5 << 20
	buf := make([]byte, bufSize)
	for i := range buf {
		buf[i] = byte(rand.Int63())
	}

	b.ResetTimer()
	rs := New()
	splits := 0
	for i := 0; i < b.N; i++ {
		splits = 0
		for _, b := range buf {
			rs.Roll(b)
			if rs.OnSplit() {
				_ = rs.Bits()
				splits++
			}
		}
	}
	b.SetBytes(bufSize)
	b.Logf("num splits = %d; every %d bytes", splits, int(float64(bufSize)/float64(splits)))
}