diff options
Diffstat (limited to 'benchtests/bench-skeleton.c')
| -rw-r--r-- | benchtests/bench-skeleton.c | 79 |
1 files changed, 41 insertions, 38 deletions
diff --git a/benchtests/bench-skeleton.c b/benchtests/bench-skeleton.c index bbd151b..7359184 100644 --- a/benchtests/bench-skeleton.c +++ b/benchtests/bench-skeleton.c @@ -25,12 +25,11 @@ #define TIMESPEC_AFTER(a, b) \ (((a).tv_sec == (b).tv_sec) ? \ ((a).tv_nsec > (b).tv_nsec) : \ - ((a).tv_sec > (b).tv_sec)) + ((a).tv_sec > (b).tv_sec)) int main (int argc, char **argv) { unsigned long i, k; - uint64_t total = 0, max = 0, min = 0x7fffffffffffffff; struct timespec start, end, runtime; memset (&runtime, 0, sizeof (runtime)); @@ -45,53 +44,57 @@ main (int argc, char **argv) but it's better than having nothing at all. */ unsigned long iters = 1000 * start.tv_nsec; - /* Run for approxmately DURATION seconds. */ - clock_gettime (CLOCK_MONOTONIC_RAW, &runtime); - runtime.tv_sec += DURATION; - - double d_total_i = 0; - while (1) + for (int v = 0; v < NUM_VARIANTS; v++) { - for (i = 0; i < NUM_SAMPLES; i++) - { - clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &start); - for (k = 0; k < iters; k++) - BENCH_FUNC(i); - clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &end); + /* Run for approximately DURATION seconds. */ + clock_gettime (CLOCK_MONOTONIC_RAW, &runtime); + runtime.tv_sec += DURATION; - uint64_t cur = (end.tv_nsec - start.tv_nsec - + ((end.tv_sec - start.tv_sec) - * (uint64_t) 1000000000)); + double d_total_i = 0; + uint64_t total = 0, max = 0, min = 0x7fffffffffffffff; + while (1) + { + for (i = 0; i < NUM_SAMPLES (v); i++) + { + clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &start); + for (k = 0; k < iters; k++) + BENCH_FUNC (v, i); + clock_gettime (CLOCK_PROCESS_CPUTIME_ID, &end); - if (cur > max) - max = cur; + uint64_t cur = (end.tv_nsec - start.tv_nsec + + ((end.tv_sec - start.tv_sec) + * (uint64_t) 1000000000)); - if (cur < min) - min = cur; + if (cur > max) + max = cur; - total += cur; + if (cur < min) + min = cur; - d_total_i += iters; - } + total += cur; - struct timespec curtime; + d_total_i += iters; + } + struct timespec curtime; - memset (&curtime, 0, sizeof (curtime)); - clock_gettime (CLOCK_MONOTONIC_RAW, &curtime); - if (TIMESPEC_AFTER (curtime, runtime)) - goto done; - } + memset (&curtime, 0, sizeof (curtime)); + clock_gettime (CLOCK_MONOTONIC_RAW, &curtime); + if (TIMESPEC_AFTER (curtime, runtime)) + goto done; + } - double d_total_s; - double d_iters; + double d_total_s; + double d_iters; - done: - d_total_s = total * 1e-9; - d_iters = iters; + done: + d_total_s = total * 1e-9; + d_iters = iters; - printf (FUNCNAME ": ITERS:%g: TOTAL:%gs, MAX:%gns, MIN:%gns, %g iter/s\n", - d_total_i, d_total_s, max / d_iters, min / d_iters, - d_total_i / d_total_s); + printf ("%s: ITERS:%g: TOTAL:%gs, MAX:%gns, MIN:%gns, %g iter/s\n", + VARIANT (v), + d_total_i, d_total_s, max / d_iters, min / d_iters, + d_total_i / d_total_s); + } return 0; } |