68 lines
2.1 KiB
Plaintext
68 lines
2.1 KiB
Plaintext
[section Performance]
|
|
|
|
[#BOOST_METAPARSE_STRING_benchmark]
|
|
[section Benchmarks of BOOST_METAPARSE_STRING]
|
|
|
|
Measurements related to the performance of the
|
|
[link BOOST_METAPARSE_STRING `BOOST_METAPARSE_STRING`] macro.
|
|
|
|
[section Increasing string length]
|
|
|
|
[include length128_gcc_4.8.5.qbk]
|
|
|
|
[endsect]
|
|
|
|
[section Increasing number of strings]
|
|
|
|
[include number_gcc_4.8.5.qbk]
|
|
|
|
[endsect]
|
|
|
|
[section Increasing string length limit]
|
|
|
|
[include max_length_gcc_4.8.5.qbk]
|
|
|
|
[endsect]
|
|
|
|
[endsect]
|
|
|
|
[section Measuring printf]
|
|
|
|
Parsers work at compile-time, thus their performance affects compilation speed.
|
|
This section shows measurements of compilation time using Metaparse. The
|
|
measurements were done on a Linux laptop with an 1.6 GHz Atom processor and 1 GB
|
|
memory. The measurements were done using GCC 4.6.1 with `-std=c++0x` and no
|
|
optimisation. Compilation speed was measured using the `time` utility.
|
|
|
|
To measure a non-trivial parser, the `printf` example program were used for
|
|
measurements. Here is a list of the `printf` calls and their compilation speed
|
|
(`user` output of `time`):
|
|
|
|
[table Printf compilation speed
|
|
[[type-safe `printf` call] [Compilation speed (s)]]
|
|
|
|
[[No compile-time parsing (just the includes and an empty `main`)] [3.51]]
|
|
[[`printf<BOOST_METAPARSE_STRING("%f")>(1.0)`] [4.95]]
|
|
[[`printf<BOOST_METAPARSE_STRING("%f%f")>(1.0, 2.0)`] [5.26]]
|
|
[[`printf<BOOST_METAPARSE_STRING("%f%f%f")>(1.0, 2.0, 3.0)`] [5.50]]
|
|
[[`printf<BOOST_METAPARSE_STRING("%f%f%f%f")>(1.0, 2.0, 3.0, 4.0)`] [5.82]]
|
|
[[`printf<BOOST_METAPARSE_STRING("%f%f%f%f%f")>(1.0, 2.0, 3.0, 4.0, 5.0)`] [6.07]]
|
|
]
|
|
|
|
[endsect]
|
|
|
|
[section Further measurements]
|
|
|
|
Further measurements can be found in the following paper:
|
|
|
|
Zoltán Porkoláb, Ábel Sinkovics: [br]
|
|
[*Domain-specific Language Integration with Compile-time Parser Generator Library] [br]
|
|
In Eelco Visser, Jaakko Järvi, editors, Proceedings of the ninth
|
|
international conference on Generative programming and component
|
|
engineering (GPCE 2010). ACM, October 2010, pp. 137-146.
|
|
|
|
[endsect]
|
|
|
|
[endsect]
|
|
|