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Victor Zverovich 2018-09-12 19:00:26 -07:00
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ChangeLog.rst
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@ -3,16 +3,16 @@
* Optimized format string parsing and argument processing which resulted in up
to 5x speed up on long format strings and significant performance boost on
various benchmarks. For example, version 5.2 is 2.2x faster than 5.1 on
various benchmarks. For example, version 5.2 is 2.22x faster than 5.1 on
decimal integer formatting with ``format_to`` (macOS, clang-902.0.39.2):
================== ======= =======
Method Time, s Speedup
================== ======= =======
fmt::format 5.1 0.58
fmt::format 5.2 0.35 1.66
fmt::format 5.2 0.35 1.66x
fmt::format_to 5.1 0.51
fmt::format_to 5.2 0.23 2.22
fmt::format_to 5.2 0.23 2.22x
sprintf 0.71
std::to_string 1.01
std::stringstream 1.73