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107 lines
3.4 KiB
107 lines
3.4 KiB
/*
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* Copyright 2013 Samy Al Bahra.
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* Copyright 2013 Brendon Scheinman.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <ck_rwcohort.h>
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#include <ck_spinlock.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include "../../common.h"
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#ifndef STEPS
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#define STEPS 1000000
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#endif
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static void
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ck_spinlock_fas_lock_with_context(ck_spinlock_fas_t *lock, void *context)
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{
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(void)context;
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ck_spinlock_fas_lock(lock);
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}
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static void
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ck_spinlock_fas_unlock_with_context(ck_spinlock_fas_t *lock, void *context)
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{
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(void)context;
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ck_spinlock_fas_unlock(lock);
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}
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static bool
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ck_spinlock_fas_locked_with_context(ck_spinlock_fas_t *lock, void *context)
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{
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(void)context;
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return ck_spinlock_fas_locked(lock);
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}
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CK_COHORT_PROTOTYPE(fas_fas,
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ck_spinlock_fas_lock_with_context, ck_spinlock_fas_unlock_with_context, ck_spinlock_fas_locked_with_context,
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ck_spinlock_fas_lock_with_context, ck_spinlock_fas_unlock_with_context, ck_spinlock_fas_locked_with_context)
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LOCK_PROTOTYPE(fas_fas)
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int
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main(void)
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{
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uint64_t s_b, e_b, i;
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ck_spinlock_fas_t global_lock = CK_SPINLOCK_FAS_INITIALIZER;
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ck_spinlock_fas_t local_lock = CK_SPINLOCK_FAS_INITIALIZER;
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CK_COHORT_INSTANCE(fas_fas) cohort = CK_COHORT_INITIALIZER;
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LOCK_INSTANCE(fas_fas) rw_cohort = LOCK_INITIALIZER;
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CK_COHORT_INIT(fas_fas, &cohort, &global_lock, &local_lock,
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CK_COHORT_DEFAULT_LOCAL_PASS_LIMIT);
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LOCK_INIT(fas_fas, &rw_cohort, CK_RWCOHORT_WP_DEFAULT_WAIT_LIMIT);
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for (i = 0; i < STEPS; i++) {
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WRITE_LOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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WRITE_UNLOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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}
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s_b = rdtsc();
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for (i = 0; i < STEPS; i++) {
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WRITE_LOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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WRITE_UNLOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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}
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e_b = rdtsc();
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printf("WRITE: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
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for (i = 0; i < STEPS; i++) {
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READ_LOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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READ_UNLOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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}
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s_b = rdtsc();
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for (i = 0; i < STEPS; i++) {
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READ_LOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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READ_UNLOCK(fas_fas, &rw_cohort, &cohort, NULL, NULL);
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}
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e_b = rdtsc();
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printf("READ: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS);
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return (0);
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}
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