5 ms·

Faster still is pv < /dev/zero > /dev/null

• BenjiWiebe 4y ago
  Yes but you don't have control of which character is written (only NULLs). yes lets you specify which character to output. 'yes n' for example to output n.
  • rocqua 4y ago
    Yes doesn't just let you choose a character. It lets you choose a string that will be repeated. So yes 123abc will print 123abc123abc123abc123abc123abc and so on.
    • jolmg 4y ago
      each time terminated by a newline, so: 123abc 123abc 123abc ...