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/*************************************************************************** |
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* * |
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* LinuxSampler - modular, streaming capable sampler * |
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* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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#include "Profiler.h" |
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#include <time.h> |
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namespace LinuxSampler { namespace gig { |
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unsigned long long Profiler::profilingSamples = 0; |
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unsigned long long Profiler::profilingTime = 0; |
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double Profiler::tsPerSecond = 0; |
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void Profiler::Calibrate( void ) |
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{ |
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clock_t start_time = clock(); |
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schoenebeck |
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RTMath::time_stamp_t start_clocks = Stamp(); |
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volatile int a = 1; |
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volatile int b = 1; |
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for (volatile int i = 0; i < 100000000; i++) |
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{ |
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a += b; |
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} |
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clock_t stop_time = clock(); |
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RTMath::time_stamp_t stop_clocks = Stamp(); |
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double diff_ticks = (stop_clocks - start_clocks); |
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double diff_time = ((stop_time - start_time) / (double(CLOCKS_PER_SEC))); |
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schoenebeck |
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tsPerSecond = diff_ticks / diff_time; |
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} |
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unsigned int Profiler::GetBogoVoices(unsigned int SamplingFreq) |
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{ |
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if (profilingSamples == 0) return 0; |
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schoenebeck |
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double avgTicks = ((double) profilingTime) / ((double) profilingSamples); |
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unsigned int samplesPerSecond = (unsigned int) (tsPerSecond / avgTicks); |
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unsigned int bogoVoices = samplesPerSecond / SamplingFreq; |
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return bogoVoices; |
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} |
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}} // namespace LinuxSampler::gig |