diff options
Diffstat (limited to 'regressions/ck_hp/benchmark/stack_latency.c')
-rw-r--r-- | regressions/ck_hp/benchmark/stack_latency.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/regressions/ck_hp/benchmark/stack_latency.c b/regressions/ck_hp/benchmark/stack_latency.c new file mode 100644 index 0000000..c336de6 --- /dev/null +++ b/regressions/ck_hp/benchmark/stack_latency.c @@ -0,0 +1,95 @@ +/* + * Copyright 2011-2015 Samy Al Bahra. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <ck_hp.h> +#include <ck_hp_stack.h> +#include <ck_stack.h> +#include <inttypes.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +#include "../../common.h" + +#ifndef ENTRIES +#define ENTRIES 4096 +#endif + +#ifndef STEPS +#define STEPS 40000 +#endif + +static ck_stack_t stack; +static ck_hp_t stack_hp; + +int +main(void) +{ + ck_hp_record_t record; + ck_stack_entry_t entry[ENTRIES]; + uint64_t s, e, a; + unsigned int i; + unsigned int j; + void *r; + + ck_hp_init(&stack_hp, CK_HP_STACK_SLOTS_COUNT, 1000000, NULL); + r = malloc(CK_HP_STACK_SLOTS_SIZE); + if (r == NULL) { + ck_error("ERROR: Failed to allocate slots.\n"); + } + ck_hp_register(&stack_hp, &record, (void *)r); + + a = 0; + for (i = 0; i < STEPS; i++) { + ck_stack_init(&stack); + + s = rdtsc(); + for (j = 0; j < ENTRIES; j++) + ck_hp_stack_push_mpmc(&stack, entry + j); + e = rdtsc(); + + a += e - s; + } + printf("ck_hp_stack_push_mpmc: %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_hp_stack_push_mpmc(&stack, entry + j); + + s = rdtsc(); + for (j = 0; j < ENTRIES; j++) { + r = ck_hp_stack_pop_mpmc(&record, &stack); + } + e = rdtsc(); + a += e - s; + } + printf(" ck_hp_stack_pop_mpmc: %16" PRIu64 "\n", a / STEPS / ENTRIES); + + return 0; +} |