[Bug libstdc++/110801] std::format code runs slower than equivalent {fmt} code

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110801

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2023-11-18
     Ever confirmed|0                           |1

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I get these numbers now:

sprintf           530172 ns       529123 ns         1366
ostringstream    1150474 ns      1147048 ns          613
to_string         150262 ns       149901 ns         4680
format            284007 ns       283124 ns         2481
format_to         142947 ns       142612 ns         5046
std_format        340518 ns       339737 ns         2062
std_format_to     296434 ns       295710 ns         2407

There's still room for improvement.