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 | resumer( &s, NoOfTimes );
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41 | EndTime = Time();
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42 |
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43 | return ( EndTime - StartTime ) / NoOfTimes;
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44 | }
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45 |
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46 | //-----------------------------------------------------------------------------
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47 | // thread context switch
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48 | long long int measure_thread() {
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49 | const unsigned int NoOfTimes = N;
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50 | long long int StartTime, EndTime;
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51 |
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52 | StartTime = Time();
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53 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
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54 | yield();
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55 | }
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56 | EndTime = Time();
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57 |
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58 | return ( EndTime - StartTime ) / NoOfTimes;
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59 | }
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60 |
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61 | //-----------------------------------------------------------------------------
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62 | // single monitor entry
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63 | monitor mon_t {};
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64 | void dummy( mon_t * mutex m ) {}
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65 |
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66 | long long int measure_1_monitor_entry() {
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67 | const unsigned int NoOfTimes = N;
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68 | long long int StartTime, EndTime;
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69 | mon_t mon;
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70 |
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71 | StartTime = Time();
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72 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
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73 | dummy( &mon );
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74 | }
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75 | EndTime = Time();
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76 |
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77 | return ( EndTime - StartTime ) / NoOfTimes;
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78 | }
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79 |
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80 | //-----------------------------------------------------------------------------
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81 | // multi monitor entry
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82 | void dummy( mon_t * mutex m1, mon_t * mutex m2 ) {}
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83 |
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84 | long long int measure_2_monitor_entry() {
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85 | const unsigned int NoOfTimes = N;
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86 | long long int StartTime, EndTime;
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87 | mon_t mon1, mon2;
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88 |
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89 | StartTime = Time();
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90 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) {
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91 | dummy( &mon1, &mon2 );
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92 | }
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93 | EndTime = Time();
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94 |
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95 | return ( EndTime - StartTime ) / NoOfTimes;
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96 | }
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97 |
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98 | //-----------------------------------------------------------------------------
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99 | // single internal sched entry
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100 | mon_t mon1;
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101 |
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102 | condition cond1a;
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103 | condition cond1b;
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104 |
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105 | thread thrd1a { long long int * out; };
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106 | thread thrd1b {};
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107 |
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108 | void ?{}( thrd1a * this, long long int * out ) {
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109 | this->out = out;
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110 | }
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111 |
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112 | void side1A( mon_t * mutex a, long long int * out ) {
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113 | long long int StartTime, EndTime;
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114 |
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115 | StartTime = Time();
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116 | for( int i = 0;; i++ ) {
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117 | signal(&cond1a);
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118 | if( i > N ) break;
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119 | wait(&cond1b);
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120 | }
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121 | EndTime = Time();
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122 |
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123 | *out = ( EndTime - StartTime ) / N;
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124 | }
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125 |
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126 | void side1B( mon_t * mutex a ) {
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127 | for( int i = 0;; i++ ) {
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128 | signal(&cond1b);
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129 | if( i > N ) break;
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130 | wait(&cond1a);
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131 | }
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132 | }
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133 |
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134 | void main( thrd1a * this ) { side1A( &mon1, this->out ); }
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135 | void main( thrd1b * this ) { side1B( &mon1 ); }
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136 |
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137 | long long int measure_1_sched_int() {
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138 | long long int t;
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139 | {
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140 | thrd1a a = { &t };
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141 | thrd1b b;
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142 | }
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143 | return t;
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144 | }
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145 |
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146 | //-----------------------------------------------------------------------------
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147 | // multi internal sched entry
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148 | mon_t mon2;
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149 |
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150 | condition cond2a;
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151 | condition cond2b;
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152 |
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153 | thread thrd2a { long long int * out; };
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154 | thread thrd2b {};
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155 |
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156 | void ?{}( thrd2a * this, long long int * out ) {
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157 | this->out = out;
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158 | }
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159 |
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160 | void side2A( mon_t * mutex a, mon_t * mutex b, long long int * out ) {
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161 | long long int StartTime, EndTime;
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162 |
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163 | StartTime = Time();
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164 | for( int i = 0;; i++ ) {
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165 | signal(&cond2a);
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166 | if( i > N ) break;
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167 | wait(&cond2b);
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168 | }
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169 | EndTime = Time();
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170 |
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171 | *out = ( EndTime - StartTime ) / N;
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172 | }
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173 |
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174 | void side2B( mon_t * mutex a, mon_t * mutex b ) {
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175 | for( int i = 0;; i++ ) {
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176 | signal(&cond2b);
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177 | if( i > N ) break;
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178 | wait(&cond2a);
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179 | }
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180 | }
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181 |
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182 | void main( thrd2a * this ) { side2A( &mon1, &mon2, this->out ); }
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183 | void main( thrd2b * this ) { side2B( &mon1, &mon2 ); }
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184 |
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185 | long long int measure_2_sched_int() {
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186 | long long int t;
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187 | {
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188 | thrd2a a = { &t };
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189 | thrd2b b;
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190 | }
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191 | return t;
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192 | }
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193 |
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194 | //-----------------------------------------------------------------------------
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195 | // main loop
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196 | int main()
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197 | {
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198 | sout | time(NULL) | ',';
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199 | sout | measure_coroutine() | ',';
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200 | sout | measure_thread() | ',';
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201 | sout | measure_1_monitor_entry() | ',';
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202 | sout | measure_2_monitor_entry() | ',';
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203 | sout | measure_1_sched_int() | ',';
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204 | sout | measure_2_sched_int() | endl;
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205 | }
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