1 | #include <fstream> |
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2 | #include <monitor> |
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3 | #include <stdlib> |
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4 | #include <thread> |
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5 | |
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6 | #include "bench.h" |
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7 | |
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8 | coroutine GreatSuspender {}; |
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9 | |
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10 | void ?{}( GreatSuspender * this ) { |
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11 | prime(this); |
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12 | } |
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13 | |
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14 | void main( GreatSuspender * this ) |
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15 | { |
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16 | while( true ) { |
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17 | suspend(); |
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18 | } |
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19 | } |
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20 | |
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21 | void resumer( GreatSuspender * this, const unsigned int NoOfTimes ) { |
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22 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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23 | resume( this ); |
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24 | } |
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25 | } |
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26 | |
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27 | #ifndef N |
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28 | #define N 100000000 |
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29 | #endif |
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30 | |
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31 | //----------------------------------------------------------------------------- |
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32 | // coroutine context switch |
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33 | long long int measure_coroutine() { |
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34 | const unsigned int NoOfTimes = N; |
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35 | long long int StartTime, EndTime; |
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36 | |
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37 | GreatSuspender s; |
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38 | |
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39 | StartTime = Time(); |
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40 | // for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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41 | // resume( this_coroutine() ); |
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42 | // // resume( &s ); |
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43 | // } |
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44 | resumer( &s, NoOfTimes ); |
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45 | EndTime = Time(); |
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46 | |
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47 | return ( EndTime - StartTime ) / NoOfTimes; |
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48 | } |
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49 | |
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50 | //----------------------------------------------------------------------------- |
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51 | // thread context switch |
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52 | long long int measure_thread() { |
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53 | const unsigned int NoOfTimes = N; |
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54 | long long int StartTime, EndTime; |
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55 | |
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56 | StartTime = Time(); |
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57 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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58 | yield(); |
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59 | } |
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60 | EndTime = Time(); |
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61 | |
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62 | return ( EndTime - StartTime ) / NoOfTimes; |
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63 | } |
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64 | |
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65 | //----------------------------------------------------------------------------- |
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66 | // single monitor entry |
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67 | monitor mon_t {}; |
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68 | void dummy( mon_t * mutex m ) {} |
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69 | |
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70 | long long int measure_1_monitor_entry() { |
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71 | const unsigned int NoOfTimes = N; |
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72 | long long int StartTime, EndTime; |
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73 | mon_t mon; |
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74 | |
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75 | StartTime = Time(); |
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76 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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77 | dummy( &mon ); |
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78 | } |
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79 | EndTime = Time(); |
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80 | |
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81 | return ( EndTime - StartTime ) / NoOfTimes; |
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82 | } |
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83 | |
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84 | //----------------------------------------------------------------------------- |
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85 | // multi monitor entry |
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86 | void dummy( mon_t * mutex m1, mon_t * mutex m2 ) {} |
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87 | |
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88 | long long int measure_2_monitor_entry() { |
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89 | const unsigned int NoOfTimes = N; |
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90 | long long int StartTime, EndTime; |
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91 | mon_t mon1, mon2; |
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92 | |
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93 | StartTime = Time(); |
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94 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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95 | dummy( &mon1, &mon2 ); |
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96 | } |
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97 | EndTime = Time(); |
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98 | |
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99 | return ( EndTime - StartTime ) / NoOfTimes; |
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100 | } |
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101 | |
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102 | int main() |
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103 | { |
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104 | sout | time(NULL) | ','; |
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105 | sout | measure_coroutine() | ','; |
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106 | sout | measure_thread() | ','; |
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107 | sout | measure_1_monitor_entry() | ','; |
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108 | sout | measure_2_monitor_entry() | endl; |
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109 | } |
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