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/*
* 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_swlock.h>
#include <inttypes.h>
#include <stdio.h>
#include "../../common.h"
#define CK_F_PR_RTM
#ifndef STEPS
#define STEPS 2000000
#endif
int
main(void)
{
uint64_t s_b, e_b, i;
ck_swlock_t swlock = CK_SWLOCK_INITIALIZER;
for (i = 0; i < STEPS; i++) {
ck_swlock_write_lock(&swlock);
ck_swlock_write_unlock(&swlock);
}
s_b = rdtsc();
for (i = 0; i < STEPS; i++) {
ck_swlock_write_lock(&swlock);
ck_swlock_write_unlock(&swlock);
}
e_b = rdtsc();
printf(" WRITE: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
for (i = 0; i < STEPS; i++) {
ck_swlock_read_lock(&swlock);
ck_swlock_read_unlock(&swlock);
}
s_b = rdtsc();
for (i = 0; i < STEPS; i++) {
ck_swlock_read_lock(&swlock);
ck_swlock_read_unlock(&swlock);
}
e_b = rdtsc();
printf(" READ: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
for (i = 0; i < STEPS; i++) {
ck_swlock_write_latch(&swlock);
ck_swlock_write_unlatch(&swlock);
}
s_b = rdtsc();
for (i = 0; i < STEPS; i++) {
ck_swlock_write_latch(&swlock);
ck_swlock_write_unlatch(&swlock);
}
e_b = rdtsc();
printf(" LATCH: swlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
return 0;
}
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