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Victor Zverovich 2017-12-10 06:54:51 -08:00 committed by GitHub
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@ -349,33 +349,38 @@ macOS Sierra, best of three) is shown in the following tables.
**Optimized build (-O3)**
============ =============== ==================== ==================
============= =============== ==================== ==================
Method Compile Time, s Executable size, KiB Stripped size, KiB
============ =============== ==================== ==================
printf 2.3 29 26
IOStreams 26.9 59 55
fmt 38.0 37 34
tinyformat 42.5 104 98
Boost Format 112.2 774 751
Folly Format 152.3 104 87
============ =============== ==================== ==================
============= =============== ==================== ==================
printf 2.7 29 26
printf+string 18.4 29 26
IOStreams 34.6 59 55
fmt 22.0 37 34
tinyformat 51.8 103 97
Boost Format 120.5 762 739
Folly Format 158.7 102 87
============= =============== ==================== ==================
As you can see, fmt has two times less overhead in terms of resulting
code size compared to IOStreams and comes pretty close to ``printf``.
Boost Format has by far the largest overheads.
As you can see, fmt has 60% less overhead in terms of resulting binary code
size compared to IOStreams and comes pretty close to ``printf``. Boost Format
has by far the largest overheads.
``printf+string`` is the same as ``printf`` but with extra ``<string>``
include to measure the overhead of the latter.
**Non-optimized build**
============ =============== ==================== ==================
============= =============== ==================== ==================
Method Compile Time, s Executable size, KiB Stripped size, KiB
============ =============== ==================== ==================
printf 2.0 33 30
IOStreams 25.4 56 52
fmt 37.0 57 51
tinyformat 30.2 88 82
Boost Format 54.0 364 302
Folly Format 107.1 438 424
============ =============== ==================== ==================
============= =============== ==================== ==================
printf 2.4 33 30
printf+string 18.5 33 30
IOStreams 31.9 56 52
fmt 20.9 56 51
tinyformat 38.9 88 82
Boost Format 64.8 366 304
Folly Format 113.5 442 428
============= =============== ==================== ==================
``libc``, ``lib(std)c++`` and ``libfmt`` are all linked as shared
libraries to compare formatting function overhead only. Boost Format