[550a3385] | 1 | |
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| 2 | #include <fstream> |
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[a91dcc2] | 3 | #include <stdlib> |
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[550a3385] | 4 | #include <threads> |
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| 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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[550a3385] | 84 | //======================================= |
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| 85 | // time coroutine |
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| 86 | //======================================= |
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| 87 | |
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[a91dcc2] | 88 | struct CoroutineDummy { coroutine c; }; |
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| 89 | DECL_COROUTINE(CoroutineDummy) |
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| 90 | void main(CoroutineDummy * this) {} |
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| 91 | |
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| 92 | void ?{}(CoroutineDummy * this) { |
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| 93 | prime(this); |
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| 94 | } |
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| 95 | |
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| 96 | void BlockCoroutineCreateDelete( int N ) { |
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| 97 | long long int StartTime, EndTime; |
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| 98 | |
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| 99 | StartTime = Time(); |
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| 100 | for ( int i = 0; i < N; i += 1 ) { |
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| 101 | CoroutineDummy dummy; |
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| 102 | } |
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| 103 | EndTime = Time(); |
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| 104 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 105 | } |
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| 106 | |
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| 107 | void DynamicCoroutineCreateDelete( int N ) { |
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| 108 | long long int StartTime, EndTime; |
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| 109 | |
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| 110 | StartTime = Time(); |
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| 111 | for ( int i = 0; i < N; i += 1 ) { |
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| 112 | CoroutineDummy * dummy = new(); |
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| 113 | delete(dummy); |
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| 114 | } |
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| 115 | EndTime = Time(); |
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| 116 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 117 | } |
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| 118 | |
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[550a3385] | 119 | struct CoroutineResume { |
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| 120 | int N; |
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| 121 | coroutine c; |
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| 122 | }; |
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| 123 | |
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[a91dcc2] | 124 | DECL_COROUTINE(CoroutineResume) |
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[550a3385] | 125 | |
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| 126 | void ?{}(CoroutineResume* this, int N) { |
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| 127 | this->N = N; |
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| 128 | prime(this); |
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| 129 | } |
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| 130 | |
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[a91dcc2] | 131 | void main(CoroutineResume* this) { |
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[550a3385] | 132 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 133 | suspend(); |
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[a91dcc2] | 134 | } |
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| 135 | } |
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[550a3385] | 136 | |
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| 137 | void resumer(CoroutineResume* this) { |
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| 138 | long long int StartTime, EndTime; |
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| 139 | |
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| 140 | StartTime = Time(); |
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| 141 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 142 | resume(this); |
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[a91dcc2] | 143 | } |
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[550a3385] | 144 | EndTime = Time(); |
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| 145 | sout | "\t " | ( EndTime - StartTime ) / this->N; |
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[a91dcc2] | 146 | } |
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| 147 | |
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| 148 | //======================================= |
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| 149 | // time task |
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| 150 | //======================================= |
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| 151 | |
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| 152 | struct ThreadDummy { thread t; }; |
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| 153 | DECL_THREAD(ThreadDummy) |
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| 154 | void main(ThreadDummy * this) {} |
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| 155 | |
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| 156 | void BlockTaskCreateDelete( int N ) { |
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| 157 | long long int StartTime, EndTime; |
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| 158 | |
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| 159 | StartTime = Time(); |
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| 160 | for ( int i = 0; i < N; i += 1 ) { |
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| 161 | scoped(ThreadDummy) dummy; |
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| 162 | } |
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| 163 | EndTime = Time(); |
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| 164 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 165 | } |
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| 166 | |
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| 167 | void DynamicTaskCreateDelete( int N ) { |
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| 168 | long long int StartTime, EndTime; |
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| 169 | |
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| 170 | StartTime = Time(); |
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| 171 | for ( int i = 0; i < N; i += 1 ) { |
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| 172 | scoped(ThreadDummy) * dummy = new(); |
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| 173 | delete(dummy); |
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| 174 | } |
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| 175 | EndTime = Time(); |
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| 176 | sout | "\t " | ( EndTime - StartTime ) / N; |
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| 177 | } |
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| 178 | |
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| 179 | struct ContextSwitch { |
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| 180 | int N; |
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| 181 | long long result; |
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| 182 | thread t; |
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| 183 | }; |
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| 184 | |
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| 185 | DECL_THREAD(ContextSwitch) |
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| 186 | |
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| 187 | void main(ContextSwitch * this) { |
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| 188 | long long int StartTime, EndTime; |
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| 189 | |
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| 190 | StartTime = Time(); |
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| 191 | for ( int i = 1; i <= this->N; i += 1 ) { |
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| 192 | yield(); |
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| 193 | } // for |
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| 194 | EndTime = Time(); |
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| 195 | this->result = ( EndTime - StartTime ) / this->N; |
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| 196 | } |
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| 197 | |
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| 198 | void ?{}(ContextSwitch * this, int N) { |
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| 199 | this->N = N; |
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| 200 | } |
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| 201 | |
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| 202 | void ^?{}(ContextSwitch * this) { |
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| 203 | sout | "\t " | this->result; |
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| 204 | } |
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| 205 | |
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| 206 | //======================================= |
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| 207 | // benchmark driver |
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| 208 | //======================================= |
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[550a3385] | 209 | |
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| 210 | |
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| 211 | int main() { |
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| 212 | const int NoOfTimes = |
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| 213 | #if defined( __U_DEBUG__ ) // takes longer so run fewer iterations |
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| 214 | 100000; |
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| 215 | #else |
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| 216 | 1000000; |
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| 217 | #endif // __U_DEBUG__ |
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| 218 | |
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[a91dcc2] | 219 | sout | "\t\tcreate\tcreate\tcall/" | endl; |
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[550a3385] | 220 | sout | "(nsecs)"; |
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[a91dcc2] | 221 | sout | "\t\tdelete/\tdelete/\tctx" | endl; |
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| 222 | sout | "\t\tblock\tdynamic\tcycle" | endl; |
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[550a3385] | 223 | |
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[a91dcc2] | 224 | sout | "object\t"; |
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| 225 | BlockStructCreateDelete( NoOfTimes ); |
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| 226 | DynamicStructCreateDelete( NoOfTimes ); |
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| 227 | StructBidirectional( NoOfTimes ); |
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| 228 | sout | endl; |
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[550a3385] | 229 | |
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| 230 | sout | "coroutine"; |
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[a91dcc2] | 231 | BlockCoroutineCreateDelete( NoOfTimes ); |
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| 232 | DynamicCoroutineCreateDelete( NoOfTimes ); |
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[550a3385] | 233 | { |
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| 234 | CoroutineResume resumer = { NoOfTimes }; |
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| 235 | resumer(&resumer); |
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| 236 | } |
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[a91dcc2] | 237 | sout | endl; |
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[550a3385] | 238 | |
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[a91dcc2] | 239 | sout | "task\t"; |
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| 240 | BlockTaskCreateDelete( NoOfTimes ); |
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| 241 | DynamicTaskCreateDelete( NoOfTimes ); |
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| 242 | { |
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| 243 | scoped(ContextSwitch) dummy = { (int)NoOfTimes }; // context switch |
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| 244 | } |
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[550a3385] | 245 | sout | "\t" | endl; |
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| 246 | } |
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