| /* |
| * 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_rwlock.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_rwlock_t rwlock = CK_RWLOCK_INITIALIZER; |
| |
| for (i = 0; i < STEPS; i++) { |
| ck_rwlock_write_lock(&rwlock); |
| ck_rwlock_write_unlock(&rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| ck_rwlock_write_lock(&rwlock); |
| ck_rwlock_write_unlock(&rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" WRITE: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| |
| #ifdef CK_F_PR_RTM |
| struct ck_elide_config config = CK_ELIDE_CONFIG_DEFAULT_INITIALIZER; |
| struct ck_elide_stat st = CK_ELIDE_STAT_INITIALIZER; |
| |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK(ck_rwlock_write, &rwlock); |
| CK_ELIDE_UNLOCK(ck_rwlock_write, &rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK(ck_rwlock_write, &rwlock); |
| CK_ELIDE_UNLOCK(ck_rwlock_write, &rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" (rtm) WRITE: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK_ADAPTIVE(ck_rwlock_write, &st, &config, &rwlock); |
| CK_ELIDE_UNLOCK_ADAPTIVE(ck_rwlock_write, &st, &rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK_ADAPTIVE(ck_rwlock_write, &st, &config, &rwlock); |
| CK_ELIDE_UNLOCK_ADAPTIVE(ck_rwlock_write, &st, &rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" (rtm-adaptive) WRITE: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| #endif /* CK_F_PR_RTM */ |
| |
| for (i = 0; i < STEPS; i++) { |
| ck_rwlock_read_lock(&rwlock); |
| ck_rwlock_read_unlock(&rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| ck_rwlock_read_lock(&rwlock); |
| ck_rwlock_read_unlock(&rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" READ: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| |
| #ifdef CK_F_PR_RTM |
| ck_elide_stat_init(&st); |
| |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK(ck_rwlock_read, &rwlock); |
| CK_ELIDE_UNLOCK(ck_rwlock_read, &rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK(ck_rwlock_read, &rwlock); |
| CK_ELIDE_UNLOCK(ck_rwlock_read, &rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" (rtm) READ: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK_ADAPTIVE(ck_rwlock_read, &st, &config, &rwlock); |
| CK_ELIDE_UNLOCK_ADAPTIVE(ck_rwlock_read, &st, &rwlock); |
| } |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; i++) { |
| CK_ELIDE_LOCK_ADAPTIVE(ck_rwlock_read, &st, &config, &rwlock); |
| CK_ELIDE_UNLOCK_ADAPTIVE(ck_rwlock_read, &st, &rwlock); |
| } |
| e_b = rdtsc(); |
| printf(" (rtm-adaptive) READ: rwlock %15" PRIu64 "\n", (e_b - s_b) / STEPS); |
| #endif /* CK_F_PR_RTM */ |
| |
| return 0; |
| } |
| |