Last change
on this file since f9ad69d was
ce9f9d4,
checked in by caparsons <caparson@…>, 3 years ago
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added mutexstmt benchmark to make
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-
Property mode set to
100644
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File size:
1.3 KB
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1 | #pragma once |
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2 | |
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3 | #if defined(__cforall) |
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4 | extern "C" { |
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5 | #endif |
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6 | #include <stdlib.h> |
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7 | #include <stdint.h> // uint64_t |
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8 | #include <unistd.h> // sysconf |
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9 | #if ! defined(__cforall) |
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10 | #include <time.h> |
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11 | #include <sys/time.h> |
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12 | #else |
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13 | } |
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14 | #include <time.hfa> |
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15 | #endif |
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16 | |
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17 | |
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18 | static inline uint64_t bench_time() { |
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19 | struct timespec ts; |
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20 | clock_gettime( CLOCK_THREAD_CPUTIME_ID, &ts ); |
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21 | return 1000000000LL * ts.tv_sec + ts.tv_nsec; |
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22 | } // bench_time |
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23 | |
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24 | |
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25 | #if defined(__cforall) |
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26 | struct test_spinlock { |
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27 | volatile bool lock; |
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28 | }; |
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29 | |
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30 | static inline void lock( test_spinlock & this ) { |
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31 | for ( ;; ) { |
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32 | if ( (this.lock == 0) && (__atomic_test_and_set( &this.lock, __ATOMIC_ACQUIRE ) == 0) ) break; |
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33 | } |
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34 | } |
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35 | |
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36 | static inline void unlock( test_spinlock & this ) { |
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37 | __atomic_clear( &this.lock, __ATOMIC_RELEASE ); |
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38 | } |
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39 | #endif |
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40 | |
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41 | #ifndef BENCH_N |
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42 | #define BENCH_N 10000000 |
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43 | #endif |
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44 | |
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45 | size_t times = BENCH_N; |
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46 | |
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47 | #define BENCH_START() \ |
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48 | if ( argc > 2 ) exit( EXIT_FAILURE ); \ |
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49 | if ( argc == 2 ) { \ |
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50 | times = atoi( argv[1] ); \ |
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51 | } |
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52 | |
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53 | #define BENCH(statement, output) \ |
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54 | uint64_t StartTime, EndTime; \ |
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55 | StartTime = bench_time(); \ |
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56 | statement; \ |
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57 | EndTime = bench_time(); \ |
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58 | double output = (double)( EndTime - StartTime ) / times; |
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59 | |
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60 | |
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61 | #if defined(__cforall) |
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62 | Duration default_preemption() { |
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63 | return 0; |
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64 | } |
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65 | #endif |
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66 | #if defined(__U_CPLUSPLUS__) |
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67 | unsigned int uDefaultPreemption() { |
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68 | return 0; |
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69 | } |
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70 | #endif |
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