After the first time the binary is executed, it should be comfortably in the memory disk cache. And frankly, on a modern SSD, the sector size is large enough th

After the first time the binary is executed, it should be comfortably in the memory disk cache. And frankly, on a modern SSD, the sector size is large enough that the only difference is reading 3 instead of 1 sectors to call "ls". Barely matters if it gets batched.