diff options
Diffstat (limited to 'libstdc++-v3/testsuite/performance/21_strings')
6 files changed, 378 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/performance/21_strings/append-1.cc b/libstdc++-v3/testsuite/performance/21_strings/append-1.cc new file mode 100644 index 000000000..60a9a8654 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/append-1.cc @@ -0,0 +1,77 @@ + // Copyright (C) 2003, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +#include <ctime> +#include <iostream> +#include <string> +#include <testsuite_performance.h> + +using namespace std; + +void +test_append_char(int how_much) +{ + string buf; // no preallocation + for (int i = 0; i < how_much; ++i) + buf.append(static_cast<string::size_type>(1) , 'x'); +} + +void +test_append_string(int how_much) +{ + string s(static_cast<string::size_type>(1) , 'x'); + string buf; // no preallocation + for (int i = 0; i < how_much; ++i) + buf.append(s); +} + +void +run_benchmark1(int how_much) +{ + using namespace __gnu_test; + time_counter time; + resource_counter resource; + start_counters(time, resource); + test_append_char(how_much); + stop_counters(time, resource); + report_performance(__FILE__, "char", time, resource); +} + +void +run_benchmark2(int how_much) +{ + using namespace __gnu_test; + time_counter time; + resource_counter resource; + start_counters(time, resource); + test_append_string(how_much); + stop_counters(time, resource); + report_performance(__FILE__, "string", time, resource); +} + +// libstdc++/5380 +// libstdc++/4960 +int main() +{ + run_benchmark1(100000); + run_benchmark2(100000); + run_benchmark1(1000000); + run_benchmark2(1000000); + run_benchmark1(10000000); + run_benchmark2(10000000); +} diff --git a/libstdc++-v3/testsuite/performance/21_strings/append-2.cc b/libstdc++-v3/testsuite/performance/21_strings/append-2.cc new file mode 100644 index 000000000..8c44cb0f0 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/append-2.cc @@ -0,0 +1,46 @@ +// Copyright (C) 2004, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +#include <string> +#include <testsuite_performance.h> + +// Short strings didn't grow quickly... +void test01() +{ + using namespace __gnu_test; + time_counter time; + resource_counter resource; + + start_counters(time, resource); + for (unsigned i = 0; i < 200000; ++i) + { + std::string a; + for (unsigned j = 0; j < 400; ++j) + a.append(1, 'x'); + } + stop_counters(time, resource); + + report_performance(__FILE__, "", time, resource); + clear_counters(time, resource); +} + +int main() +{ + test01(); + return 0; +} diff --git a/libstdc++-v3/testsuite/performance/21_strings/cons_input_iterator.cc b/libstdc++-v3/testsuite/performance/21_strings/cons_input_iterator.cc new file mode 100644 index 000000000..fcf3eb893 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/cons_input_iterator.cc @@ -0,0 +1,49 @@ +// Copyright (C) 2004, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +#include <iterator> +#include <sstream> + +#include <testsuite_performance.h> + +void benchmark(long len) +{ + using namespace std; + using namespace __gnu_test; + + time_counter time; + resource_counter resource; + + istringstream isstr(string(len, 'a')); + + start_counters(time, resource); + string str((istreambuf_iterator<char>(isstr)), + istreambuf_iterator<char>()); + stop_counters(time, resource); + + report_performance(__FILE__, "", time, resource); + clear_counters(time, resource); +} + +int main() +{ + benchmark(500000); + benchmark(5000000); + benchmark(50000000); + return 0; +} diff --git a/libstdc++-v3/testsuite/performance/21_strings/copy_cons_and_dest.cc b/libstdc++-v3/testsuite/performance/21_strings/copy_cons_and_dest.cc new file mode 100644 index 000000000..1ec18d3e4 --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/copy_cons_and_dest.cc @@ -0,0 +1,52 @@ +// Copyright (C) 2006, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +#include <string> +#include <testsuite_performance.h> + +void benchmark(long len) +{ + using namespace std; + using namespace __gnu_test; + + time_counter time; + resource_counter resource; + + start_counters(time, resource); + string a("1"); + for (long i = 0; i < len; ++i) + { + string ss1(a); + string ss2(ss1); + string ss3(ss2); + string ss4(ss3); + string ss5(ss4); + } + stop_counters(time, resource); + + report_performance(__FILE__, "", time, resource); + clear_counters(time, resource); +} + +int main() +{ + benchmark(1000000); + benchmark(10000000); + benchmark(100000000); + return 0; +} diff --git a/libstdc++-v3/testsuite/performance/21_strings/find.cc b/libstdc++-v3/testsuite/performance/21_strings/find.cc new file mode 100644 index 000000000..eeda0802b --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/find.cc @@ -0,0 +1,96 @@ + // Copyright (C) 2004, 2009 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library is free +// software; you can redistribute it and/or modify it under the +// terms of the GNU General Public License as published by the +// Free Software Foundation; either version 3, or (at your option) +// any later version. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + + +#include <string> +#include <testsuite_performance.h> + +void +test_pair(const std::string& s, const std::string& f, int n) +{ + std::string::size_type sz = 0; + + for (int i = 0; i < n; ++i) + sz = s.find(f); +} + +int main() +{ + using namespace std; + using namespace __gnu_test; + + time_counter time; + resource_counter resource; + + const unsigned int iterations = 2000000; + + string s, f; + s = "aabbaabbaaxd adbffdadgaxaabbbddhatyaaaabbbaabbaabbcsy"; + f = "aabbaabbc"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "1", time, resource); + clear_counters(time, resource); + + f = "aabbb"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "2", time, resource); + clear_counters(time, resource); + + f = "xd"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "3", time, resource); + clear_counters(time, resource); + + s = "dhruv is a very very good boy ;-)"; + f = "very"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "4", time, resource); + clear_counters(time, resource); + + f = "bad"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "5", time, resource); + clear_counters(time, resource); + + f = "extra irritating"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "6", time, resource); + clear_counters(time, resource); + + s = "this is a very this is a very this is a verty this is a very " + "this is a very long sentence"; + f = "this is a very long sentence"; + start_counters(time, resource); + test_pair(s, f, iterations); + stop_counters(time, resource); + report_performance(__FILE__, "7", time, resource); + clear_counters(time, resource); + + return 0; +} diff --git a/libstdc++-v3/testsuite/performance/21_strings/hash.cc b/libstdc++-v3/testsuite/performance/21_strings/hash.cc new file mode 100644 index 000000000..0c409c5da --- /dev/null +++ b/libstdc++-v3/testsuite/performance/21_strings/hash.cc @@ -0,0 +1,58 @@ +#include <string> +#include <vector> +#include <unordered_set> +#include <cstdlib> +#include <random> +#include <testsuite_performance.h> + +using namespace std; + +vector<string> +random_strings(int n, int len) +{ + string s(len, '\0'); + unordered_set<string> result_set; + random_device rd; + while (result_set.size() < n) + { + result_set.insert(s); + unsigned int tmp = rd(); + tmp %= len * 256; + s[tmp / 256] = tmp % 256; + } + return vector<string>(result_set.begin(), result_set.end()); +} + +int +main(int argc, char **argv) +{ + using namespace __gnu_test; + time_counter time; + resource_counter resource; + + int string_size = 71; + int num_strings = 6000000; + if (argc > 1) + { + string_size = atoi(argv[1]); + if (argc > 2) + num_strings = atoi(argv[2]); + } + + // Construct random strings. + vector<string> v = random_strings(num_strings, string_size); + + // Time hashing. + size_t tmp = 0; // prevent compiler from optimizing away all the work + start_counters(time, resource); + for (int i = 0; i < num_strings; i++) + tmp += hash<string>()(v[i]); + stop_counters(time, resource); + + if (tmp != 0 || argc < 9) // use tmp to prevent compiler optimization + report_performance(__FILE__, "", time, resource); + + clear_counters(time, resource); + + return 0; +} |