| /* |
| * Copyright 2011-2015 Samy Al Bahra. |
| * Copyright 2011 David Joseph. |
| * 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_bytelock.h> |
| #include <ck_spinlock.h> |
| #include <inttypes.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "../../common.h" |
| |
| #ifndef STEPS |
| #define STEPS 30000000 |
| #endif |
| |
| LOCK_DEFINE; |
| |
| int |
| main(void) |
| { |
| CK_CC_UNUSED unsigned int nthr = 1; |
| |
| #ifdef LOCK_INIT |
| LOCK_INIT; |
| #endif |
| |
| #ifdef LOCK_STATE |
| LOCK_STATE; |
| #endif |
| |
| uint64_t s_b, e_b, i; |
| CK_CC_UNUSED int core = 0; |
| |
| s_b = rdtsc(); |
| for (i = 0; i < STEPS; ++i) { |
| #ifdef LOCK |
| LOCK; |
| UNLOCK; |
| LOCK; |
| UNLOCK; |
| LOCK; |
| UNLOCK; |
| LOCK; |
| UNLOCK; |
| #endif |
| } |
| e_b = rdtsc(); |
| printf("%15" PRIu64 "\n", (e_b - s_b) / 4 / STEPS); |
| |
| return (0); |
| } |
| |