Merge branch 'master' into urcu/rcuja-range-merge

[userspace-rcu.git] / tests / test_rwlock_timing.c

diff --git a/tests/test_rwlock_timing.c b/tests/test_rwlock_timing.c
deleted file mode 100644 (file)
index 3ff7ee4..0000000
--- a/tests/test_rwlock_timing.c
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * test_urcu.c
- *
- * Userspace RCU library - test program
- *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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 <pthread.h>
-#include <errno.h>
-
-#include <urcu/arch.h>
-
-#include "thread-id.h"
-
-#include <urcu.h>
-
-struct test_array {
-       int a;
-};
-
-pthread_rwlock_t lock = PTHREAD_RWLOCK_INITIALIZER;
-
-static struct test_array test_array = { 8 };
-
-#define OUTER_READ_LOOP        200U
-#define INNER_READ_LOOP        100000U
-#define READ_LOOP ((unsigned long long)OUTER_READ_LOOP * INNER_READ_LOOP)
-
-#define OUTER_WRITE_LOOP 10U
-#define INNER_WRITE_LOOP 200U
-#define WRITE_LOOP ((unsigned long long)OUTER_WRITE_LOOP * INNER_WRITE_LOOP)
-
-static int num_read;
-static int num_write;
-
-#define NR_READ num_read
-#define NR_WRITE num_write
-
-static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time;
-static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time;
-
-void *thr_reader(void *arg)
-{
-       int i, j;
-       cycles_t time1, time2;
-
-       printf("thread_begin %s, tid %lu\n",
-               "reader", urcu_get_thread_id());
-       sleep(2);
-
-       time1 = caa_get_cycles();
-       for (i = 0; i < OUTER_READ_LOOP; i++) {
-               for (j = 0; j < INNER_READ_LOOP; j++) {
-                       pthread_rwlock_rdlock(&lock);
-                       assert(test_array.a == 8);
-                       pthread_rwlock_unlock(&lock);
-               }
-       }
-       time2 = caa_get_cycles();
-
-       reader_time[(unsigned long)arg] = time2 - time1;
-
-       sleep(2);
-       printf("thread_end %s, tid %lu\n",
-               "reader", urcu_get_thread_id());
-       return ((void*)1);
-
-}
-
-void *thr_writer(void *arg)
-{
-       int i, j;
-       cycles_t time1, time2;
-
-       printf("thread_begin %s, tid %lu\n",
-               "writer", urcu_get_thread_id());
-       sleep(2);
-
-       for (i = 0; i < OUTER_WRITE_LOOP; i++) {
-               for (j = 0; j < INNER_WRITE_LOOP; j++) {
-                       time1 = caa_get_cycles();
-                       pthread_rwlock_wrlock(&lock);
-                       test_array.a = 8;
-                       pthread_rwlock_unlock(&lock);
-                       time2 = caa_get_cycles();
-                       writer_time[(unsigned long)arg] += time2 - time1;
-                       usleep(1);
-               }
-       }
-
-       printf("thread_end %s, tid %lu\n",
-               "writer", urcu_get_thread_id());
-       return ((void*)2);
-}
-
-int main(int argc, char **argv)
-{
-       int err;
-       pthread_t *tid_reader, *tid_writer;
-       void *tret;
-       int i;
-       cycles_t tot_rtime = 0;
-       cycles_t tot_wtime = 0;
-
-       if (argc < 2) {
-               printf("Usage : %s nr_readers nr_writers\n", argv[0]);
-               exit(-1);
-       }
-       num_read = atoi(argv[1]);
-       num_write = atoi(argv[2]);
-
-       reader_time = malloc(sizeof(*reader_time) * num_read);
-       writer_time = malloc(sizeof(*writer_time) * num_write);
-       tid_reader = malloc(sizeof(*tid_reader) * num_read);
-       tid_writer = malloc(sizeof(*tid_writer) * num_write);
-
-       printf("thread %-6s, tid %lu\n",
-               "main", urcu_get_thread_id());
-
-       for (i = 0; i < NR_READ; i++) {
-               err = pthread_create(&tid_reader[i], NULL, thr_reader,
-                                    (void *)(long)i);
-               if (err != 0)
-                       exit(1);
-       }
-       for (i = 0; i < NR_WRITE; i++) {
-               err = pthread_create(&tid_writer[i], NULL, thr_writer,
-                                    (void *)(long)i);
-               if (err != 0)
-                       exit(1);
-       }
-
-       sleep(10);
-
-       for (i = 0; i < NR_READ; i++) {
-               err = pthread_join(tid_reader[i], &tret);
-               if (err != 0)
-                       exit(1);
-               tot_rtime += reader_time[i];
-       }
-       for (i = 0; i < NR_WRITE; i++) {
-               err = pthread_join(tid_writer[i], &tret);
-               if (err != 0)
-                       exit(1);
-               tot_wtime += writer_time[i];
-       }
-       printf("Time per read : %g cycles\n",
-              (double)tot_rtime / ((double)NR_READ * (double)READ_LOOP));
-       printf("Time per write : %g cycles\n",
-              (double)tot_wtime / ((double)NR_WRITE * (double)WRITE_LOOP));
-
-       free(reader_time);
-       free(writer_time);
-       free(tid_reader);
-       free(tid_writer);
-
-       return 0;
-}