1 | #include <stdlib.h> |
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2 | #include <stdio.h> |
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3 | #include <string.h> |
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4 | #include <limits.h> |
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5 | |
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6 | extern "C" { |
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7 | #include <locale.h> |
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8 | #include <getopt.h> |
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9 | } |
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10 | |
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11 | #include <unistd.h> |
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12 | |
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13 | #include <clock.hfa> |
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14 | #include <time.hfa> |
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15 | #include <stats.hfa> |
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16 | |
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17 | #include "../benchcltr.hfa" |
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18 | |
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19 | extern bool traceHeapOn(); |
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20 | |
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21 | |
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22 | volatile bool run = false; |
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23 | volatile unsigned long long global_counter; |
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24 | |
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25 | thread __attribute__((aligned(128))) Yielder { |
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26 | unsigned long long counter; |
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27 | }; |
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28 | void ?{}( Yielder & this ) { |
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29 | this.counter = 0; |
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30 | ((thread&)this){ "Yielder Thread", *the_benchmark_cluster }; |
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31 | } |
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32 | |
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33 | void main( Yielder & this ) { |
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34 | park( __cfaabi_dbg_ctx ); |
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35 | /* paranoid */ assert( true == __atomic_load_n(&run, __ATOMIC_RELAXED) ); |
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36 | |
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37 | while(__atomic_load_n(&run, __ATOMIC_RELAXED)) { |
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38 | yield(); |
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39 | this.counter++; |
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40 | } |
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41 | __atomic_fetch_add(&global_counter, this.counter, __ATOMIC_SEQ_CST); |
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42 | } |
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43 | |
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44 | int main(int argc, char * argv[]) { |
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45 | BENCH_DECL |
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46 | unsigned num_io = 1; |
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47 | io_context_params params; |
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48 | |
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49 | for(;;) { |
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50 | static struct option options[] = { |
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51 | BENCH_OPT_LONG |
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52 | {0, 0, 0, 0} |
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53 | }; |
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54 | |
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55 | int idx = 0; |
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56 | int opt = getopt_long(argc, argv, BENCH_OPT_SHORT, options, &idx); |
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57 | |
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58 | const char * arg = optarg ? optarg : ""; |
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59 | char * end; |
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60 | switch(opt) { |
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61 | case -1: |
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62 | goto run; |
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63 | BENCH_OPT_CASE |
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64 | default: /* ? */ |
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65 | fprintf( stderr, "Unkown option '%c'\n", opt); |
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66 | usage: |
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67 | bench_usage( argv ); |
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68 | exit(1); |
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69 | } |
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70 | } |
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71 | run: |
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72 | |
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73 | { |
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74 | printf("Running %d threads on %d processors for %f seconds\n", nthreads, nprocs, duration); |
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75 | |
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76 | Time start, end; |
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77 | BenchCluster cl = { num_io, params, CFA_STATS_READY_Q }; |
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78 | { |
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79 | BenchProc procs[nprocs]; |
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80 | { |
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81 | Yielder threads[nthreads]; |
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82 | printf("Starting\n"); |
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83 | |
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84 | bool is_tty = isatty(STDOUT_FILENO); |
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85 | start = getTimeNsec(); |
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86 | run = true; |
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87 | |
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88 | for(i; nthreads) { |
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89 | unpark( threads[i] __cfaabi_dbg_ctx2 ); |
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90 | } |
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91 | wait(duration, start, end, is_tty); |
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92 | |
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93 | run = false; |
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94 | end = getTimeNsec(); |
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95 | printf("\nDone\n"); |
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96 | } |
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97 | } |
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98 | |
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99 | printf("Took %'ld ms\n", (end - start)`ms); |
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100 | printf("Yields per second : %'18.2lf\n", ((double)global_counter) / (end - start)`s); |
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101 | printf("ns per yields : %'18.2lf\n", ((double)(end - start)`ns) / global_counter); |
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102 | printf("Total yields : %'15llu\n", global_counter); |
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103 | printf("Yields per procs : %'15llu\n", global_counter / nprocs); |
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104 | printf("Yields/sec/procs : %'18.2lf\n", (((double)global_counter) / nprocs) / (end - start)`s); |
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105 | printf("ns per yields/procs : %'18.2lf\n", ((double)(end - start)`ns) / (global_counter / nprocs)); |
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106 | fflush(stdout); |
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107 | } |
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108 | } |
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