Add a benchmark of large allocations.

This commit is contained in:
David Goldblatt
2020-04-28 12:18:36 -07:00
committed by David Goldblatt
parent 46471ea327
commit 2c09d43494
4 changed files with 74 additions and 40 deletions

39
test/include/test/bench.h Normal file
View File

@@ -0,0 +1,39 @@
static inline void
time_func(timedelta_t *timer, uint64_t nwarmup, uint64_t niter,
void (*func)(void)) {
uint64_t i;
for (i = 0; i < nwarmup; i++) {
func();
}
timer_start(timer);
for (i = 0; i < niter; i++) {
func();
}
timer_stop(timer);
}
static inline void
compare_funcs(uint64_t nwarmup, uint64_t niter, const char *name_a,
void (*func_a), const char *name_b, void (*func_b)) {
timedelta_t timer_a, timer_b;
char ratio_buf[6];
void *p;
p = mallocx(1, 0);
if (p == NULL) {
test_fail("Unexpected mallocx() failure");
return;
}
time_func(&timer_a, nwarmup, niter, func_a);
time_func(&timer_b, nwarmup, niter, func_b);
timer_ratio(&timer_a, &timer_b, ratio_buf, sizeof(ratio_buf));
malloc_printf("%"FMTu64" iterations, %s=%"FMTu64"us, "
"%s=%"FMTu64"us, ratio=1:%s\n",
niter, name_a, timer_usec(&timer_a), name_b, timer_usec(&timer_b),
ratio_buf);
dallocx(p, 0);
}