You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
ck/regressions/ck_stack/benchmark/latency.c

144 lines
3.0 KiB

#include <ck_stack.h>
#include <ck_spinlock.h>
#include <inttypes.h>
#include <stdint.h>
#include <stdio.h>
#include "../../common.h"
#ifndef ENTRIES
#define ENTRIES 4096
#endif
#ifndef STEPS
#define STEPS 40000
#endif
static ck_stack_t stack;
int
main(void)
{
ck_stack_entry_t entry[ENTRIES];
ck_spinlock_fas_t mutex = CK_SPINLOCK_FAS_INITIALIZER;
volatile ck_stack_entry_t * volatile r;
uint64_t s, e, a;
unsigned int i;
unsigned int j;
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
s = rdtsc();
for (j = 0; j < ENTRIES; j++) {
ck_spinlock_fas_lock(&mutex);
ck_stack_push_spnc(&stack, entry + j);
ck_spinlock_fas_unlock(&mutex);
}
e = rdtsc();
a += e - s;
}
printf(" spinlock_push: %16" PRIu64 "\n", a / STEPS / ENTRIES);
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
for (j = 0; j < ENTRIES; j++)
ck_stack_push_spnc(&stack, entry + j);
s = rdtsc();
for (j = 0; j < ENTRIES; j++) {
ck_spinlock_fas_lock(&mutex);
r = ck_stack_pop_npsc(&stack);
ck_spinlock_fas_unlock(&mutex);
}
e = rdtsc();
a += e - s;
}
printf(" spinlock_pop: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#ifdef CK_F_STACK_PUSH_UPMC
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
s = rdtsc();
for (j = 0; j < ENTRIES; j++)
ck_stack_push_upmc(&stack, entry + j);
e = rdtsc();
a += e - s;
}
printf("ck_stack_push_upmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_UPMC */
#ifdef CK_F_STACK_PUSH_MPMC
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
s = rdtsc();
for (j = 0; j < ENTRIES; j++)
ck_stack_push_mpmc(&stack, entry + j);
e = rdtsc();
a += e - s;
}
printf("ck_stack_push_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_MPMC */
#ifdef CK_F_STACK_PUSH_MPNC
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
s = rdtsc();
for (j = 0; j < ENTRIES; j++)
ck_stack_push_mpnc(&stack, entry + j);
e = rdtsc();
a += e - s;
}
printf("ck_stack_push_mpnc: %16" PRIu64 "\n", a / STEPS / ENTRIES);
#endif /* CK_F_STACK_PUSH_MPNC */
#if defined(CK_F_STACK_PUSH_UPMC) && defined(CK_F_STACK_POP_UPMC)
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
for (j = 0; j < ENTRIES; j++)
ck_stack_push_upmc(&stack, entry + j);
s = rdtsc();
for (j = 0; j < ENTRIES; j++)
r = ck_stack_pop_upmc(&stack);
e = rdtsc();
a += e - s;
}
printf(" ck_stack_pop_upmc: %16" PRIu64 "\n", a / STEPS / (sizeof(entry) / sizeof(*entry)));
#endif /* CK_F_STACK_PUSH_UPMC && CK_F_STACK_POP_UPMC */
#if defined(CK_F_STACK_POP_MPMC) && defined(CK_F_STACK_PUSH_MPMC)
a = 0;
for (i = 0; i < STEPS; i++) {
ck_stack_init(&stack);
for (j = 0; j < ENTRIES; j++)
ck_stack_push_mpmc(&stack, entry + j);
s = rdtsc();
for (j = 0; j < ENTRIES; j++)
r = ck_stack_pop_mpmc(&stack);
e = rdtsc();
a += e - s;
}
printf(" ck_stack_pop_mpmc: %16" PRIu64 "\n", a / STEPS / (sizeof(entry) / sizeof(*entry)));
#endif
return 0;
}