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Last change
on this file since 1748:0a75c3e6a91a was
1689:f1795dafe42c,
checked in by Alpar Juttner, 20 years ago
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- runningTimeTest(): a tool to measure running times more precisely.
- TimeStamp? now uses double to count cpu-times
- 'get's removed from the query functions of Times and TimeStamp?
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File size:
1.1 KB
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| 1 | /* -*- C++ -*- |
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| 2 | * test/time_measure_test.cc - Part of LEMON, a generic C++ optimization library |
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| 3 | * |
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| 4 | * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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| 5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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| 6 | * |
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| 7 | * Permission to use, modify and distribute this software is granted |
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| 8 | * provided that this copyright notice appears in all copies. For |
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| 9 | * precise terms see the accompanying LICENSE file. |
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| 10 | * |
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| 11 | * This software is provided "AS IS" with no warranty of any kind, |
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| 12 | * express or implied, and with no claim as to its suitability for any |
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| 13 | * purpose. |
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| 14 | * |
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| 15 | */ |
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| 16 | |
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| 17 | #include <lemon/time_measure.h> |
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| 18 | |
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| 19 | ///\file \brief Test cases for time_measure.h |
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| 20 | /// |
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| 21 | ///\todo To be extended |
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| 22 | |
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| 23 | |
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| 24 | using namespace lemon; |
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| 25 | |
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| 26 | void f() |
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| 27 | { |
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| 28 | double d=0; |
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| 29 | for(int i=0;i<10000;i++) |
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| 30 | d+=0.1; |
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| 31 | } |
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| 32 | |
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| 33 | int main() |
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| 34 | { |
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| 35 | Timer T; |
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| 36 | int n; |
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| 37 | for(n=0;T.realTime()<1.0;n++) ; |
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| 38 | std::cout << T << " (" << n << " time queries)\n"; |
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| 39 | T.reset(); |
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| 40 | while(T.realTime()<2.0) ; |
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| 41 | std::cout << T << '\n'; |
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| 42 | TimeStamp full; |
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| 43 | TimeStamp t=runningTimeTest(f,1,&n,&full); |
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| 44 | std::cout << t << " (" << n << " tests)\n"; |
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| 45 | std::cout << "Total: " << full << "\n"; |
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| 46 | |
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| 47 | return 0; |
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| 48 | } |
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