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#include "test/jemalloc_test.h"
void
timer_start(timedelta_t *timer)
{
gettimeofday(&timer->tv0, NULL);
}
void
timer_stop(timedelta_t *timer)
{
gettimeofday(&timer->tv1, NULL);
}
uint64_t
timer_usec(const timedelta_t *timer)
{
return (((timer->tv1.tv_sec - timer->tv0.tv_sec) * 1000000) +
timer->tv1.tv_usec - timer->tv0.tv_usec);
}
void
timer_ratio(timedelta_t *a, timedelta_t *b, char *buf, size_t buflen)
{
uint64_t t0 = timer_usec(a);
uint64_t t1 = timer_usec(b);
uint64_t mult;
unsigned i = 0;
unsigned j;
int n;
/* Whole. */
n = malloc_snprintf(&buf[i], buflen-i, "%"PRIu64, t0 / t1);
i += n;
if (i >= buflen)
return;
mult = 1;
for (j = 0; j < n; j++)
mult *= 10;
/* Decimal. */
n = malloc_snprintf(&buf[i], buflen-i, ".");
i += n;
/* Fraction. */
while (i < buflen-1) {
uint64_t round = (i+1 == buflen-1 && ((t0 * mult * 10 / t1) % 10
>= 5)) ? 1 : 0;
n = malloc_snprintf(&buf[i], buflen-i,
"%"PRIu64, (t0 * mult / t1) % 10 + round);
i += n;
mult *= 10;
}
}
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