From e36b37583bebd229102f46c4ed7d2f6fad8697d4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Fri, 23 Jul 2021 13:24:09 +0200 Subject: Adding upstream version 0.6.0. Signed-off-by: Daniel Baumann --- regressions/ck_tflock/benchmark/latency.c | 73 +++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 regressions/ck_tflock/benchmark/latency.c (limited to 'regressions/ck_tflock/benchmark/latency.c') diff --git a/regressions/ck_tflock/benchmark/latency.c b/regressions/ck_tflock/benchmark/latency.c new file mode 100644 index 0000000..fd77d44 --- /dev/null +++ b/regressions/ck_tflock/benchmark/latency.c @@ -0,0 +1,73 @@ +/* + * 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 +#include +#include + +#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_tflock_ticket_t tflock = CK_TFLOCK_TICKET_INITIALIZER; + + for (i = 0; i < STEPS; i++) { + ck_tflock_ticket_write_lock(&tflock); + ck_tflock_ticket_write_unlock(&tflock); + } + + s_b = rdtsc(); + for (i = 0; i < STEPS; i++) { + ck_tflock_ticket_write_lock(&tflock); + ck_tflock_ticket_write_unlock(&tflock); + } + e_b = rdtsc(); + printf(" WRITE: tflock %15" PRIu64 "\n", (e_b - s_b) / STEPS); + + for (i = 0; i < STEPS; i++) { + ck_tflock_ticket_read_lock(&tflock); + ck_tflock_ticket_read_unlock(&tflock); + } + + s_b = rdtsc(); + for (i = 0; i < STEPS; i++) { + ck_tflock_ticket_read_lock(&tflock); + ck_tflock_ticket_read_unlock(&tflock); + } + e_b = rdtsc(); + printf(" READ: tflock %15" PRIu64 "\n", (e_b - s_b) / STEPS); + + return 0; +} + -- cgit v1.2.3