[550a338] | 1 | |
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| 2 | #include <fstream> |
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[a91dcc2] | 3 | #include <stdlib> |
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[29f44a74] | 4 | #include <thread> |
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[550a338] | 5 | |
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| 6 | #include <unistd.h> // sysconf |
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| 7 | #include <sys/times.h> // times |
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| 8 | #include <time.h> |
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| 9 | |
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| 10 | inline unsigned long long int Time() { |
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| 11 | timespec ts; |
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| 12 | clock_gettime( |
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| 13 | #if defined( __linux__ ) |
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| 14 | CLOCK_THREAD_CPUTIME_ID, |
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| 15 | #elif defined( __freebsd__ ) |
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| 16 | CLOCK_PROF, |
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| 17 | #elif defined( __solaris__ ) |
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| 18 | CLOCK_HIGHRES, |
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| 19 | #else |
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| 20 | #error uC++ : internal error, unsupported architecture |
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| 21 | #endif |
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| 22 | &ts ); |
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| 23 | return 1000000000LL * ts.tv_sec + ts.tv_nsec; |
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| 24 | } // Time |
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| 25 | |
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[a91dcc2] | 26 | //======================================= |
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| 27 | // time struct |
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| 28 | //======================================= |
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| 29 | |
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| 30 | // prevent dead-code removal |
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| 31 | struct StructDummy { |
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| 32 | volatile int i; |
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| 33 | }; |
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| 34 | |
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| 35 | void ?{}(StructDummy * this) __attribute__(( noinline )) { |
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| 36 | this->i = 2; |
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| 37 | } |
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| 38 | |
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| 39 | int get_i(StructDummy * this) { |
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| 40 | return this->i; |
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| 41 | } |
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| 42 | |
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| 43 | forall( dtype T | { int get_i(T*); } ) |
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| 44 | int bidirectional( StructDummy * this ) __attribute__(( noinline )) { |
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| 45 | return get_i( this ); |
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| 46 | } |
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| 47 | |
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| 48 | void BlockStructCreateDelete( int N ) { |
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| 49 | long long int StartTime, EndTime; |
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| 50 | |
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| 51 | StartTime = Time(); |
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| 52 | for ( int i = 0; i < N; i += 1 ) { |
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| 53 | StructDummy dummy; |
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| 54 | } |
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| 55 | EndTime = Time(); |
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| 56 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 57 | } |
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| 58 | |
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| 59 | void DynamicStructCreateDelete( int N ) { |
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| 60 | long long int StartTime, EndTime; |
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| 61 | |
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| 62 | StartTime = Time(); |
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| 63 | for ( int i = 0; i < N; i += 1 ) { |
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| 64 | StructDummy *dummy = new(); |
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| 65 | delete(dummy); |
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| 66 | } |
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| 67 | EndTime = Time(); |
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| 68 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 69 | } |
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| 70 | |
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| 71 | void StructBidirectional( int N ) { |
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| 72 | long long int StartTime, EndTime; |
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| 73 | StructDummy dummy; |
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| 74 | volatile int rv __attribute__(( unused )); |
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| 75 | |
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| 76 | StartTime = Time(); |
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| 77 | for ( int i = 0; i < N; i += 1 ) { |
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| 78 | rv = bidirectional( &dummy ); |
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| 79 | } |
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| 80 | EndTime = Time(); |
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| 81 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 82 | } |
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| 83 | |
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[550a338] | 84 | //======================================= |
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| 85 | // time coroutine |
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| 86 | //======================================= |
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| 87 | |
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[b510ac2] | 88 | coroutine CoroutineDummy {}; |
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[a91dcc2] | 89 | void main(CoroutineDummy * this) {} |
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| 90 | |
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| 91 | void ?{}(CoroutineDummy * this) { |
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| 92 | prime(this); |
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| 93 | } |
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| 94 | |
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| 95 | void BlockCoroutineCreateDelete( int N ) { |
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| 96 | long long int StartTime, EndTime; |
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| 97 | |
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| 98 | StartTime = Time(); |
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| 99 | for ( int i = 0; i < N; i += 1 ) { |
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| 100 | CoroutineDummy dummy; |
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| 101 | } |
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| 102 | EndTime = Time(); |
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| 103 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 104 | } |
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| 105 | |
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| 106 | void DynamicCoroutineCreateDelete( int N ) { |
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| 107 | long long int StartTime, EndTime; |
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| 108 | |
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| 109 | StartTime = Time(); |
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| 110 | for ( int i = 0; i < N; i += 1 ) { |
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| 111 | CoroutineDummy * dummy = new(); |
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| 112 | delete(dummy); |
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| 113 | } |
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| 114 | EndTime = Time(); |
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| 115 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 116 | } |
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| 117 | |
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[b510ac2] | 118 | coroutine CoroutineResume { |
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[550a338] | 119 | int N; |
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| 120 | }; |
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| 121 | |
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| 122 | void ?{}(CoroutineResume* this, int N) { |
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| 123 | this->N = N; |
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| 124 | prime(this); |
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| 125 | } |
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| 126 | |
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[a91dcc2] | 127 | void main(CoroutineResume* this) { |
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[550a338] | 128 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 129 | suspend(); |
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[a91dcc2] | 130 | } |
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| 131 | } |
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[550a338] | 132 | |
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| 133 | void resumer(CoroutineResume* this) { |
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| 134 | long long int StartTime, EndTime; |
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| 135 | |
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| 136 | StartTime = Time(); |
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| 137 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 138 | resume(this); |
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[a91dcc2] | 139 | } |
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[550a338] | 140 | EndTime = Time(); |
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| 141 | sout | "\t " | ( EndTime - StartTime ) / this->N; |
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[a91dcc2] | 142 | } |
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| 143 | |
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| 144 | //======================================= |
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| 145 | // time task |
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| 146 | //======================================= |
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| 147 | |
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[b510ac2] | 148 | thread ThreadDummy {}; |
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[a91dcc2] | 149 | void main(ThreadDummy * this) {} |
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| 150 | |
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| 151 | void BlockTaskCreateDelete( int N ) { |
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| 152 | long long int StartTime, EndTime; |
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| 153 | |
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| 154 | StartTime = Time(); |
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| 155 | for ( int i = 0; i < N; i += 1 ) { |
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| 156 | scoped(ThreadDummy) dummy; |
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| 157 | } |
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| 158 | EndTime = Time(); |
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| 159 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 160 | } |
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| 161 | |
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| 162 | void DynamicTaskCreateDelete( int N ) { |
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| 163 | long long int StartTime, EndTime; |
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| 164 | |
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| 165 | StartTime = Time(); |
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| 166 | for ( int i = 0; i < N; i += 1 ) { |
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| 167 | scoped(ThreadDummy) * dummy = new(); |
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| 168 | delete(dummy); |
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| 169 | } |
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| 170 | EndTime = Time(); |
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| 171 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 172 | } |
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| 173 | |
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[b510ac2] | 174 | thread ContextSwitch { |
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[a91dcc2] | 175 | int N; |
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| 176 | long long result; |
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| 177 | }; |
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| 178 | |
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| 179 | void main(ContextSwitch * this) { |
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| 180 | long long int StartTime, EndTime; |
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| 181 | |
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| 182 | StartTime = Time(); |
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| 183 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 184 | yield(); |
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| 185 | } // for |
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| 186 | EndTime = Time(); |
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| 187 | this->result = ( EndTime - StartTime ) / this->N; |
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| 188 | } |
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| 189 | |
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| 190 | void ?{}(ContextSwitch * this, int N) { |
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| 191 | this->N = N; |
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| 192 | } |
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| 193 | |
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| 194 | void ^?{}(ContextSwitch * this) { |
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| 195 | sout | "\t " | this->result; |
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| 196 | } |
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| 197 | |
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| 198 | //======================================= |
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| 199 | // benchmark driver |
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| 200 | //======================================= |
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[550a338] | 201 | |
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| 202 | |
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| 203 | int main() { |
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| 204 | const int NoOfTimes = |
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| 205 | #if defined( __U_DEBUG__ ) // takes longer so run fewer iterations |
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| 206 | 100000; |
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| 207 | #else |
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| 208 | 1000000; |
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| 209 | #endif // __U_DEBUG__ |
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| 210 | |
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[a91dcc2] | 211 | sout | "\t\tcreate\tcreate\tcall/" | endl; |
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[550a338] | 212 | sout | "(nsecs)"; |
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[a91dcc2] | 213 | sout | "\t\tdelete/\tdelete/\tctx" | endl; |
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| 214 | sout | "\t\tblock\tdynamic\tcycle" | endl; |
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[550a338] | 215 | |
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[a91dcc2] | 216 | sout | "object\t"; |
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| 217 | BlockStructCreateDelete( NoOfTimes ); |
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| 218 | DynamicStructCreateDelete( NoOfTimes ); |
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| 219 | StructBidirectional( NoOfTimes ); |
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| 220 | sout | endl; |
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[550a338] | 221 | |
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| 222 | sout | "coroutine"; |
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[a91dcc2] | 223 | BlockCoroutineCreateDelete( NoOfTimes ); |
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| 224 | DynamicCoroutineCreateDelete( NoOfTimes ); |
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[550a338] | 225 | { |
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| 226 | CoroutineResume resumer = { NoOfTimes }; |
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| 227 | resumer(&resumer); |
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| 228 | } |
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[a91dcc2] | 229 | sout | endl; |
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[550a338] | 230 | |
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[a91dcc2] | 231 | sout | "task\t"; |
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| 232 | BlockTaskCreateDelete( NoOfTimes ); |
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| 233 | DynamicTaskCreateDelete( NoOfTimes ); |
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| 234 | { |
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[b510ac2] | 235 | ContextSwitch dummy = { (int)NoOfTimes }; // context switch |
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[a91dcc2] | 236 | } |
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[550a338] | 237 | sout | "\t" | endl; |
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| 238 | } |
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