source: benchmark/readyQ/yield.cfa @ fcd65ca

ADTast-experimentalenumforall-pointer-decaypthread-emulationqualifiedEnum
Last change on this file since fcd65ca was 6dc2db9, checked in by Thierry Delisle <tdelisle@…>, 3 years ago

Change benchmarks to consistently print duration in ms.

  • Property mode set to 100644
File size: 2.3 KB
Line 
1#include <stdlib.h>
2#include <stdio.h>
3#include <string.h>
4#include <limits.h>
5
6extern "C" {
7        #include <locale.h>
8        #include <getopt.h>
9}
10
11#include <unistd.h>
12
13#include <clock.hfa>
14#include <time.hfa>
15#include <stats.hfa>
16
17#include "../benchcltr.hfa"
18
19extern bool traceHeapOn();
20
21
22volatile bool run = false;
23volatile unsigned long long global_counter;
24
25thread __attribute__((aligned(128))) Yielder {
26        unsigned long long counter;
27};
28void ?{}( Yielder & this ) {
29        this.counter = 0;
30        ((thread&)this){ "Yielder Thread", *the_benchmark_cluster };
31}
32
33void main( Yielder & this ) {
34        park();
35        /* paranoid */ assert( true == __atomic_load_n(&run, __ATOMIC_RELAXED) );
36
37        while(__atomic_load_n(&run, __ATOMIC_RELAXED)) {
38                yield();
39                this.counter++;
40        }
41        __atomic_fetch_add(&global_counter, this.counter, __ATOMIC_SEQ_CST);
42}
43
44int main(int argc, char * argv[]) {
45        unsigned num_io = 1;
46        io_context_params params;
47
48        cfa_option opt[] = {
49                BENCH_OPT_CFA
50        };
51        int opt_cnt = sizeof(opt) / sizeof(cfa_option);
52
53        char **left;
54        parse_args( argc, argv, opt, opt_cnt, "[OPTIONS]...\ncforall yield benchmark", left );
55
56        {
57                printf("Running %d threads on %d processors for %f seconds\n", nthreads, nprocs, duration);
58
59                Time start, end;
60                BenchCluster cl = { num_io, params, CFA_STATS_READY_Q };
61                {
62                        BenchProc procs[nprocs];
63                        {
64                                Yielder threads[nthreads];
65                                printf("Starting\n");
66
67                                bool is_tty = isatty(STDOUT_FILENO);
68                                start = timeHiRes();
69                                run = true;
70
71                                for(i; nthreads) {
72                                        unpark( threads[i] );
73                                }
74                                wait(duration, start, end, is_tty);
75
76                                run = false;
77                                end = timeHiRes();
78                                printf("\nDone\n");
79                        }
80                }
81
82                printf("Duration (ms)       : %'ld\n", (end - start)`dms);
83                printf("Number of processors: %'d\n", nprocs);
84                printf("Number of threads   : %'d\n", nthreads);
85                printf("Total yields        : %'15llu\n", global_counter);
86                printf("Yields per second   : %'18.2lf\n", ((double)global_counter) / (end - start)`s);
87                printf("ns per yields       : %'18.2lf\n", ((double)(end - start)`ns) / global_counter);
88                printf("Yields per procs    : %'15llu\n", global_counter / nprocs);
89                printf("Yields/sec/procs    : %'18.2lf\n", (((double)global_counter) / nprocs) / (end - start)`s);
90                printf("ns per yields/procs : %'18.2lf\n", ((double)(end - start)`ns) / (global_counter / nprocs));
91                fflush(stdout);
92        }
93}
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