2 ///////////////////////////////////////////////////////////////////////////
3 // This program is free software: you can redistribute it and/or modify //
4 // it under the terms of the version 3 of the GNU General Public License //
5 // as published by the Free Software Foundation. //
7 // This program is distributed in the hope that it will be useful, but //
8 // WITHOUT ANY WARRANTY; without even the implied warranty of //
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU //
10 // General Public License for more details. //
12 // You should have received a copy of the GNU General Public License //
13 // along with this program. If not, see <http://www.gnu.org/licenses/>. //
15 // Written by Francois Fleuret, (C) IDIAP //
16 // Contact <francois.fleuret@idiap.ch> for comments & bug reports //
17 ///////////////////////////////////////////////////////////////////////////
23 Chrono::Chrono() : _nb_ticks_per_second(scalar_t(sysconf(_SC_CLK_TCK))),
24 _nb(0), _current(-1) { }
26 void Chrono::print(ostream *os) {
27 scalar_t total_durations = 0;
28 for(int n = 0; n < _nb; n++) total_durations += _durations[n];
29 for(int n = 0; n < _nb; n++)
30 (*os) << "INFO CHRONO_" << _labels[n]
31 << " " << scalar_t(_durations[n] * 100) / total_durations << "%"
32 << " " << _durations[n] << " seconds"
36 void Chrono::start(const char *label) {
40 _durations[_current] += scalar_t(tmp.tms_stime - _last.tms_stime)/_nb_ticks_per_second;
45 while(_current < _nb && strcmp(_labels[_current], label) != 0)
49 strncpy(_labels[_nb], label, buffer_size);
53 cerr << "Too many timers." << endl;
62 void Chrono::stop() { start(0); }