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.
104 lines
2.9 KiB
104 lines
2.9 KiB
/*
|
|
* Copyright 2011-2014 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_brlock.h>
|
|
#include <ck_rwlock.h>
|
|
#include <inttypes.h>
|
|
#include <stdio.h>
|
|
|
|
#include "../../common.h"
|
|
|
|
#ifndef STEPS
|
|
#define STEPS 1000000
|
|
#endif
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
uint64_t s_b, e_b, i;
|
|
ck_brlock_t brlock = CK_BRLOCK_INITIALIZER;
|
|
ck_brlock_reader_t r[8];
|
|
ck_rwlock_t naive;
|
|
|
|
for (i = 0; i < sizeof(r) / sizeof(*r); i++)
|
|
ck_brlock_read_register(&brlock, &r[i]);
|
|
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_brlock_write_lock(&brlock);
|
|
ck_brlock_write_unlock(&brlock);
|
|
}
|
|
|
|
s_b = rdtsc();
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_brlock_write_lock(&brlock);
|
|
ck_brlock_write_unlock(&brlock);
|
|
}
|
|
e_b = rdtsc();
|
|
printf("WRITE: brlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
|
|
|
|
ck_rwlock_init(&naive);
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_rwlock_write_lock(&naive);
|
|
ck_rwlock_write_unlock(&naive);
|
|
}
|
|
|
|
s_b = rdtsc();
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_rwlock_write_lock(&naive);
|
|
ck_rwlock_write_unlock(&naive);
|
|
}
|
|
e_b = rdtsc();
|
|
printf("WRITE: naive %15" PRIu64 "\n", (e_b - s_b) / STEPS);
|
|
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_brlock_read_lock(&brlock, &r[0]);
|
|
ck_brlock_read_unlock(&r[0]);
|
|
}
|
|
s_b = rdtsc();
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_brlock_read_lock(&brlock, &r[0]);
|
|
ck_brlock_read_unlock(&r[0]);
|
|
}
|
|
e_b = rdtsc();
|
|
printf("READ: brlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
|
|
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_rwlock_read_lock(&naive);
|
|
ck_rwlock_read_unlock(&naive);
|
|
}
|
|
|
|
s_b = rdtsc();
|
|
for (i = 0; i < STEPS; i++) {
|
|
ck_rwlock_read_lock(&naive);
|
|
ck_rwlock_read_unlock(&naive);
|
|
}
|
|
e_b = rdtsc();
|
|
printf("READ: naive %15" PRIu64 "\n", (e_b - s_b) / STEPS);
|
|
|
|
return (0);
|
|
}
|
|
|