source:
benchmark/bench.h
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28af389
Last change on this file since 28af389 was dc33b5b, checked in by , 5 years ago | |
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[8cb6fcd] | 1 | #pragma once |
2 | ||
[0cf5b79] | 3 | #if defined(__cforall) |
[8cb6fcd] | 4 | extern "C" { |
[d67cdb7] | 5 | #endif |
[034165a] | 6 | #include <stdlib.h> |
[8cb6fcd] | 7 | #include <unistd.h> // sysconf |
[9d32bc8] | 8 | #if ! defined(__cforall) |
9 | #include <time.h> | |
10 | #include <sys/time.h> | |
11 | #else | |
[8cb6fcd] | 12 | } |
[73abe95] | 13 | #include <time.hfa> |
[d67cdb7] | 14 | #endif |
[8cb6fcd] | 15 | |
[d8548e2] | 16 | |
[399a908] | 17 | static inline unsigned long long int bench_time() { |
[d67cdb7] | 18 | struct timespec ts; |
[8cb6fcd] | 19 | clock_gettime( |
20 | #if defined( __linux__ ) | |
21 | CLOCK_THREAD_CPUTIME_ID, | |
22 | #elif defined( __freebsd__ ) | |
23 | CLOCK_PROF, | |
24 | #elif defined( __solaris__ ) | |
25 | CLOCK_HIGHRES, | |
26 | #else | |
27 | #error uC++ : internal error, unsupported architecture | |
28 | #endif | |
29 | &ts ); | |
30 | return 1000000000LL * ts.tv_sec + ts.tv_nsec; | |
31 | } // Time | |
32 | ||
[034165a] | 33 | #ifndef BENCH_N |
34 | #define BENCH_N 500 //10000000 | |
[7286a40] | 35 | #endif |
36 | ||
[034165a] | 37 | #define BENCH(statement, output) \ |
[b7170a64] | 38 | size_t n = BENCH_N; \ |
39 | if( argc > 2 ) return 1; \ | |
40 | if( argc == 2 ) { \ | |
41 | n = atoi(argv[1]); \ | |
42 | } \ | |
[034165a] | 43 | long long int StartTime, EndTime; \ |
[9d32bc8] | 44 | StartTime = bench_time(); \ |
[b7170a64] | 45 | statement; \ |
[9d32bc8] | 46 | EndTime = bench_time(); \ |
[dc33b5b] | 47 | double output = \ |
48 | (double)( EndTime - StartTime ) / n; | |
[034165a] | 49 | |
[9d32bc8] | 50 | #if defined(__cforall) |
[399a908] | 51 | Duration default_preemption() { |
[7286a40] | 52 | return 0; |
[8ad6533] | 53 | } |
[9d32bc8] | 54 | #endif |
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