if len(bmbuf) < maxSize {
		bmbuf = make([]byte, maxSize)
	}

	for _, n := range sizes {
		for _, off := range []int{0, 1, 4, 7} {
			buf1 := bmbuf[off : off+n]
			buf2Start := (len(bmbuf) / 2) + off
			buf2 := bmbuf[buf2Start : buf2Start+n]
			buf1[n-1] = 'x'
			buf2[n-1] = 'x'
			b.Run(fmt.Sprint(n, off), func(b *testing.B) {
				b.SetBytes(int64(n))
				for i := 0; i < b.N; i++ {
					eq := Equal(buf1, buf2)