294 lines
11 KiB
Plaintext
294 lines
11 KiB
Plaintext
// Copyright (c) 2001 Samuel Krempp
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// krempp@crans.ens-cachan.fr
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// Distributed under the Boost Software License, Version 1.0. (See accompany-
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// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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// This benchmark is provided purely for information.
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// It might not even compile as-is,
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// or not give any sensible results.
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// (e.g., it expects sprintf to be POSIX compliant)
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new results ( with outsstream vs. stringstream)
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bjam -sTOOLS="gcc intel-linux-7.1" -sBUILD="release"
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( -sBUILD="profile" for profiling..)
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"_no_reuse_stream" "_stringstr" "_strstream" _no_locale
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intel-linux-7.1
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for comp in gcc ; do
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echo "\n------------------- Compiler $comp : ---------------- "
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for var in _overloads _basicfmt _normal; do
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echo "\n-- Variant **" $var "**" :
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texe=$EXEBOOST/libs/format/benchmark/bench_format${var}/${comp}/release/bench_format${var} ;
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ls -l $texe;
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$texe
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done
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done
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// stringstream recréé chaque fois.
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-- Variant ** _normal ** :
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-rwx--x--x 1 sam users 61952 Sep 17 03:13 /home/data/zStore/BBoost/bin/boost//libs/format/benchmark/bench_format_normal/gcc/release/bench_format_normal
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printf time :2.16
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ostream time : 3.69, = 1.70833 * printf
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parsed-once time : 8.45, = 3.91204 * printf , = 2.28997 * nullStream
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reused format time :10.94, = 5.06481 * printf , = 2.96477 * nullStream
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format time :10.97, = 5.0787 * printf , = 2.9729 * nullStream
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Pour le parsing. step 1 : scan_not + str2int (version Iter const& qques % mieux)
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------------------- Compiler gcc : ----------------
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-- Variant ** _overloads ** :
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-rwx--x--x 1 sam users 52864 2003-09-12 02:59 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_overloads/gcc/release/bench_format_overloads
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printf time :2.21
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ostream time : 3.57, = 1.61538 * printf
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parsed-once time : 4.93, = 2.23077 * printf , = 1.38095 * nullStream
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reused format time : 9.25, = 4.18552 * printf , = 2.59104 * nullStream
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format time :10.33, = 4.67421 * printf , = 2.89356 * nullStream
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-- Variant ** _basicfmt ** :
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-rwx--x--x 1 sam users 52864 2003-09-12 03:00 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_basicfmt/gcc/release/bench_format_basicfmt
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printf time :2.2
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ostream time : 3.57, = 1.62273 * printf
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parsed-once time : 4.85, = 2.20455 * printf , = 1.35854 * nullStream
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reused format time : 9.25, = 4.20455 * printf , = 2.59104 * nullStream
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format time :10.29, = 4.67727 * printf , = 2.88235 * nullStream
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-- Variant ** _normal ** :
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-rwx--x--x 1 sam users 53088 2003-09-12 03:00 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_normal/gcc/release/bench_format_normal
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printf time :2.27
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ostream time : 3.47, = 1.52863 * printf
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parsed-once time : 4.79, = 2.11013 * printf , = 1.3804 * nullStream
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reused format time : 9.88, = 4.35242 * printf , = 2.84726 * nullStream
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format time :10.97, = 4.8326 * printf , = 3.16138 * nullStream
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-------------------------------------------------------------------------------------------------
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Overload : int, double char * -> put_simple :
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#if defined(BOOST_FORMAT_OVERLOADS)
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template<class T>
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basic_format& operator%(const char* x)
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{ return io::detail::feed_overloaded(*this,x); }
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template<class T>
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basic_format& operator%(const double x)
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{ return io::detail::feed_overloaded(*this,x); }
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template<class T>
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basic_format& operator%(const int x)
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{ return io::detail::feed_overloaded(*this,x); }
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#endif
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// put overloads for common types (-> faster)
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template< class Ch, class Tr, class T>
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void put_simple( T x,
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const format_item<Ch, Tr>& specs,
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std::basic_string<Ch, Tr> & res,
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io::basic_outsstream<Ch, Tr>& oss_ )
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{
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typedef std::basic_string<Ch, Tr> string_t;
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typedef format_item<Ch, Tr> format_item_t;
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specs.fmtstate_.apply_on(oss_);
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const std::ios_base::fmtflags fl=oss_.flags();
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const std::streamsize w = oss_.width();
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if(w!=0)
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oss_.width(0);
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put_last( oss_, x);
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const Ch * res_beg = oss_.begin();
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std::streamsize res_size = std::min(specs.truncate_, oss_.pcount());
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int prefix_space = 0;
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if(specs.pad_scheme_ & format_item_t::spacepad)
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if( res_size == 0 || ( res_beg[0] !='+' && res_beg[0] !='-' ))
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prefix_space = 1;
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mk_str(res, res_beg, res_size, w, oss_.fill(), fl,
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prefix_space, (specs.pad_scheme_ & format_item_t::centered) !=0 );
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clear_buffer( oss_);
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} // end- put_simple(..)
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------------------- Compiler gcc : ----------------
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-- Variant ** _overloads ** :
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-rwx--x--x 1 sam users 52832 2003-09-12 00:17 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_overloads/gcc/release/bench_format_overloads
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printf time :2.13
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ostream time : 2.91, = 1.3662 * printf
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parsed-once time : 4.48, = 2.10329 * printf , = 1.53952 * nullStream
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reused format time : 9.42, = 4.42254 * printf , = 3.23711 * nullStream
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format time : 11.1, = 5.21127 * printf , = 3.81443 * nullStream
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RERUN
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printf time :2.09
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ostream time : 2.92, = 1.39713 * printf
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parsed-once time : 4.43, = 2.11962 * printf , = 1.51712 * nullStream
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reused format time : 9.29, = 4.44498 * printf , = 3.18151 * nullStream
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format time :11.05, = 5.28708 * printf , = 3.78425 * nullStream
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-- Variant ** _basicfmt ** :
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-rwx--x--x 1 sam users 52832 2003-09-12 00:17 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_basicfmt/gcc/release/bench_format_basicfmt
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printf time :2.16
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ostream time : 3.01, = 1.39352 * printf
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parsed-once time : 4.41, = 2.04167 * printf , = 1.46512 * nullStream
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reused format time : 9.61, = 4.44907 * printf , = 3.19269 * nullStream
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format time :11.02, = 5.10185 * printf , = 3.66113 * nullStream
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-- Variant ** _no_locale ** :
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-rwx--x--x 1 sam users 52192 2003-09-12 00:09 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_no_locale/gcc/release/bench_format_no_locale
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printf time :2.1
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ostream time : 2.87, = 1.36667 * printf
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parsed-once time : 4.44, = 2.11429 * printf , = 1.54704 * nullStream
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reused format time : 8.21, = 3.90952 * printf , = 2.86063 * nullStream
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format time : 9.25, = 4.40476 * printf , = 3.223 * nullStream
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-- Variant ** _normal ** :
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-rwx--x--x 1 sam users 53056 2003-09-12 00:17 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_normal/gcc/release/bench_format_normal
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printf time :2.18
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ostream time : 2.92, = 1.33945 * printf
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parsed-once time : 5.75, = 2.63761 * printf , = 1.96918 * nullStream
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reused format time :10.27, = 4.71101 * printf , = 3.51712 * nullStream
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------------------- Compiler gcc : ----------------
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-- Variant ** _normal ** :
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-rwx--x--x 1 sam users 49280 2003-09-10 21:12 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_normal/gcc/release/bench_format_normal
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printf time :2.16
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ostream time : 2.81, = 1.30093 * printf
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stored format time :11.56, = 5.35185 * printf , = 4.11388 * nullStream
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format time :18.69, = 8.65278 * printf , = 6.65125 * nullStream
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-- Variant ** _static_stream ** :
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-rwx--x--x 1 sam users 45856 2003-09-10 21:13 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_static_stream/gcc/release/bench_format_static_stream
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printf time :2.1
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ostream time : 2.79, = 1.32857 * printf
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stored format time : 4.5, = 2.14286 * printf , = 1.6129 * nullStream
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format time :10.05, = 4.78571 * printf , = 3.60215 * nullStream
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-- Variant ** _basicfmt ** :
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-rwx--x--x 1 sam users 47200 2003-09-10 21:13 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_basicfmt/gcc/release/bench_format_basicfmt
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printf time :2.22
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ostream time : 2.88, = 1.2973 * printf
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stored format time : 4.45, = 2.0045 * printf , = 1.54514 * nullStream
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format time :11.67, = 5.25676 * printf , = 4.05208 * nullStream
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The cost of imbuing locale after each object is fed :
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------------------- Compiler gcc : ----------------
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-- Variant _normal :
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-rwx--x--x 1 sam users 49920 2003-09-10 20:23 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_normal/gcc/release/bench_format_normal
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printf time :2.21
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ostream time : 3.1, = 1.40271 * printf
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stored format time :11.53, = 3.71935 * stream
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format time :18.86, = 6.08387 * stream
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-- Variant _static_stream :
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-rwx--x--x 1 sam users 43232 2003-09-10 20:24 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_static_stream/gcc/release/bench_format_static_stream
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printf time :2.19
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ostream time : 3.09, = 1.41096 * printf
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stored format time : 4.63, = 1.49838 * stream
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format time :10.12, = 3.27508 * stream
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-- Variant _basicfmt :
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-rwx--x--x 1 sam users 45760 2003-09-10 20:24 /home/sam/progs/Boost/bin/BBoost//libs/format/benchmark/bench_format_basicfmt/gcc/release/bench_format_basicfmt
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printf time :2.23
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ostream time : 3.14, = 1.40807 * printf
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stored format time : 4.61, = 1.46815 * stream
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format time :11.33, = 3.60828 * stream
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------------------- Compiler gcc : ----------------
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-- Variant _normal :
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printf time :2.15
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ostream time :4.42, = 2.05581 * printf
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stored format time :5.85, = 1.32353 * stream
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format time :11.53, = 2.6086 * stream
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-- Variant _no_reuse_stream :
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printf time :2.13
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ostream time :4.4, = 2.06573 * printf
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stored format time :11.1, = 2.52273 * stream
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format time :14.3, = 3.25 * stream
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-- Variant _stringstr :
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printf time :2.01
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ostream time :4.42, = 2.199 * printf
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stored format time :7.92, = 1.79186 * stream
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format time :12.8, = 2.89593 * stream
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------------------- Compiler intel-linux-7.1 : ----------------
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-- Variant _normal :
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printf time :2.08
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ostream time :4.49, = 2.15865 * printf
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stored format time :5.3, = 1.1804 * stream
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format time :17.8, = 3.96437 * stream
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-- Variant _no_reuse_stream :
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printf time :2.09
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ostream time :4.37, = 2.09091 * printf
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stored format time :10.07, = 2.30435 * stream
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format time :14.46, = 3.30892 * stream
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-- Variant _stringstr :
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printf time :1.99
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ostream time :5.16, = 2.59296 * printf
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stored format time :5.83, = 1.12984 * stream
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format time :17.42, = 3.37597 * stream
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// older Result with gcc-3.03 on linux :
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// With flag -g :
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/***
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printf time :1.2
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ostream time :2.84, = 2.36667 * printf
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stored format time :8.91, = 3.13732 * stream
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format time :15.35, = 5.40493 * stream
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format3 time :21.83, = 7.68662 * stream
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***/
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// With flag -O
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/***
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printf time :1.16
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ostream time :1.94, = 1.67241 * printf
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stored format time :3.68, = 1.89691 * stream
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format time :6.31, = 3.25258 * stream
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format3 time :9.04, = 4.65979 * stream
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***/
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// ==> that's quite acceptable.
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// ------------------------------------------------------------------------------
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