ADTaaron-thesisarm-ehast-experimentalcleanup-dtorsdeferred_resndemanglerenumforall-pointer-decayjacob/cs343-translationjenkins-sandboxnew-astnew-ast-unique-exprnew-envno_listpersistent-indexerpthread-emulationqualifiedEnumresolv-newwith_gc
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Last change
on this file since 23c4aa8 was
de90452,
checked in by Thierry Delisle <tdelisle@…>, 8 years ago
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Added new benchmark folder and added more focused benchmarks for thread/coroutine context switch
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-
Property mode set to
100644
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File size:
798 bytes
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| Rev | Line | |
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| [de90452] | 1 | #include <fstream> |
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| 2 | #include <stdlib> |
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| 3 | #include <threads> |
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| 4 | |
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| 5 | #include <unistd.h> // sysconf |
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| 6 | #include <sys/times.h> // times |
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| 7 | #include <time.h> |
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| 8 | |
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| 9 | inline unsigned long long int Time() { |
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| 10 | timespec ts; |
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| 11 | clock_gettime( |
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| 12 | #if defined( __linux__ ) |
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| 13 | CLOCK_THREAD_CPUTIME_ID, |
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| 14 | #elif defined( __freebsd__ ) |
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| 15 | CLOCK_PROF, |
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| 16 | #elif defined( __solaris__ ) |
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| 17 | CLOCK_HIGHRES, |
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| 18 | #else |
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| 19 | #error uC++ : internal error, unsupported architecture |
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| 20 | #endif |
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| 21 | &ts ); |
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| 22 | return 1000000000LL * ts.tv_sec + ts.tv_nsec; |
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| 23 | } // Time |
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| 24 | |
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| 25 | #ifndef N |
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| 26 | #define N 100000000 |
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| 27 | #endif |
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| 28 | |
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| 29 | int main() { |
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| 30 | const unsigned int NoOfTimes = N; |
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| 31 | long long int StartTime, EndTime; |
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| 32 | |
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| 33 | StartTime = Time(); |
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| 34 | for ( volatile unsigned int i = 0; i < NoOfTimes; i += 1 ) { |
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| 35 | yield(); |
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| 36 | } |
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| 37 | EndTime = Time(); |
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| 38 | |
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| 39 | sout | ( EndTime - StartTime ) / NoOfTimes | endl; |
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| 40 | } |
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