1 use test::black_box; 2 use test::Bencher; 3 4 macro_rules! map_array { 5 ($func_name:ident, $start_item: expr, $map_item: expr, $arr_size: expr) => { 6 #[bench] 7 fn $func_name(b: &mut Bencher) { 8 let arr = [$start_item; $arr_size]; 9 b.iter(|| black_box(arr).map(|_| black_box($map_item))); 10 } 11 }; 12 } 13 14 map_array!(map_8byte_8byte_8, 0u64, 1u64, 80); 15 map_array!(map_8byte_8byte_64, 0u64, 1u64, 640); 16 map_array!(map_8byte_8byte_256, 0u64, 1u64, 2560); 17 18 map_array!(map_8byte_256byte_256, 0u64, [0u64; 4], 2560); 19 map_array!(map_256byte_8byte_256, [0u64; 4], 0u64, 2560); 20