+++ /dev/null
-/*
- * test_looplen.c
- *
- * Userspace RCU library - test program
- *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#define _GNU_SOURCE
-#include <stdio.h>
-#include <pthread.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <assert.h>
-#include <sys/syscall.h>
-#include <sched.h>
-
-#include "arch.h"
-
-#if defined(_syscall0)
-_syscall0(pid_t, gettid)
-#elif defined(__NR_gettid)
-static inline pid_t gettid(void)
-{
- return syscall(__NR_gettid);
-}
-#else
-#warning "use pid as tid"
-static inline pid_t gettid(void)
-{
- return getpid();
-}
-#endif
-
-#ifndef DYNAMIC_LINK_TEST
-#define _LGPL_SOURCE
-#else
-#define debug_yield_read()
-#endif
-#include "urcu.h"
-
-static inline void loop_sleep(unsigned long l)
-{
- while(l-- != 0)
- cpu_relax();
-}
-
-#define LOOPS 1048576
-#define TESTS 10
-
-int main(int argc, char **argv)
-{
- unsigned long i;
- cycles_t time1, time2;
- cycles_t time_tot = 0;
- double cpl;
-
- for (i = 0; i < TESTS; i++) {
- time1 = get_cycles();
- loop_sleep(LOOPS);
- time2 = get_cycles();
- time_tot += time2 - time1;
- }
- cpl = ((double)time_tot) / (double)TESTS / (double)LOOPS;
-
- printf("CALIBRATION : %g cycles per loop\n", cpl);
- printf("time_tot = %llu, LOOPS = %d, TESTS = %d\n",
- time_tot, LOOPS, TESTS);
-
- return 0;
-}