Patrick Kelley 8fd444092b initial
2025-05-07 15:35:15 -04:00

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#!/bin/bash
# Script to test how much bloating a large project will suffer when using
# tinyformat, vs alternatives. Call as
#
# C99 printf : bloat_test.sh $CXX [-O3]
# tinyformat : bloat_test.sh $CXX [-O3] -DUSE_TINYFORMAT
# tinyformat, no inlines: bloat_test.sh $CXX [-O3] -DUSE_TINYFORMAT -DUSE_TINYFORMAT_NOINLINE
# boost::format : bloat_test.sh $CXX [-O3] -DUSE_BOOST
# std::iostream : bloat_test.sh $CXX [-O3] -DUSE_IOSTREAMS
#
# Note: to test the NOINLINE version of tinyformat, you need to remove the few
# inline functions in the tinyformat::detail namespace, and put them into a
# file tinyformat.cpp. Then rename that version of tinyformat.h into
# tinyformat_noinline.h
prefix=_bloat_test_tmp_
numTranslationUnits=100
rm -f $prefix??.cpp ${prefix}main.cpp ${prefix}all.h
template='
#ifdef USE_BOOST
#include <boost/format.hpp>
#include <iostream>
void doFormat_a()
{
std::cout << boost::format("%s\n") % "somefile.cpp";
std::cout << boost::format("%s:%d\n") % "somefile.cpp"% 42;
std::cout << boost::format("%s:%d:%s\n") % "somefile.cpp"% 42% "asdf";
std::cout << boost::format("%s:%d:%d:%s\n") % "somefile.cpp"% 42% 1% "asdf";
std::cout << boost::format("%s:%d:%d:%d:%s\n") % "somefile.cpp"% 42% 1% 2% "asdf";
}
#elif defined(USE_IOSTREAMS)
#include <iostream>
void doFormat_a()
{
const char* str1 = "somefile.cpp";
const char* str2 = "asdf";
std::cout << str1 << "\n";
std::cout << str1 << ":" << 42 << "\n";
std::cout << str1 << ":" << 42 << ":" << str2 << "\n";
std::cout << str1 << ":" << 42 << ":" << 1 << ":" << str2 << "\n";
std::cout << str1 << ":" << 42 << ":" << 1 << ":" << 2 << ":" << str2 << "\n";
}
#else
#ifdef USE_TINYFORMAT
# ifdef USE_TINYFORMAT_NOINLINE
# include "tinyformat_noinline.h"
# else
# include "tinyformat.h"
# endif
# define PRINTF tfm::printf
#else
# include <stdio.h>
# define PRINTF ::printf
#endif
void doFormat_a()
{
const char* str1 = "somefile.cpp";
const char* str2 = "asdf";
PRINTF("%s\n", str1);
PRINTF("%s:%d\n", str1, 42);
PRINTF("%s:%d:%s\n", str1, 42, str2);
PRINTF("%s:%d:%d:%s\n", str1, 42, 1, str2);
PRINTF("%s:%d:%d:%d:%s\n", str1, 42, 1, 2, str2);
}
#endif
'
# Generate all the files
echo "#include \"${prefix}all.h\"" >> ${prefix}main.cpp
echo '
#ifdef USE_TINYFORMAT_NOINLINE
#include "tinyformat.cpp"
#endif
int main()
{' >> ${prefix}main.cpp
for ((i=0;i<$numTranslationUnits;i++)) ; do
n=$(printf "%03d" $i)
f=${prefix}$n.cpp
echo "$template" | sed -e "s/doFormat_a/doFormat_a$n/" -e "s/42/$i/" > $f
echo "doFormat_a$n();" >> ${prefix}main.cpp
echo "void doFormat_a$n();" >> ${prefix}all.h
done
echo "return 0; }" >> ${prefix}main.cpp
# Compile
time "$@" ${prefix}???.cpp ${prefix}main.cpp -o ${prefix}.out
ls -sh ${prefix}.out
cp ${prefix}.out ${prefix}stripped.out
strip ${prefix}stripped.out
ls -sh ${prefix}stripped.out