4 ms·

you can write your own memset that bypasses all of that. Its just 2 lines of code.

• gmueckl 7y ago
  And that will be slower than calling memset() unless you have a really smart compiler.
• rurban 7y ago
  I don't trust any memset at all. Literally every single memset I looked at was either broken, too slow or insecure. Mostly the wellknown glibc, freebsd, msvcrt and compiler implementations.
  • rmtgk 7y ago
    That's quite a bold claim. Care to explain further?
    • rurban 7y ago
      I already explained it. Noone implements memory barriers in its safe variants, only compiler barriers. And the trivial variants work byte-wise, not word-wise, which is usually 8x slower.