X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=test_rwlock_timing.c;fp=test_rwlock_timing.c;h=0000000000000000000000000000000000000000;hb=833dbdb633ba44bfb71b4b965a83096d8e4e827b;hp=4884e4dc2a4840ad7db45311684d87f673a32e02;hpb=538d7df5086144837beb7a9c1e2a94eb637b9904;p=urcu.git

diff --git a/test_rwlock_timing.c b/test_rwlock_timing.c
deleted file mode 100644
index 4884e4d..0000000
--- a/test_rwlock_timing.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * test_urcu.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.
- */
-
-#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 <pthread.h>
-#include <arch.h>
-
-/* Make this big enough to include the POWER5+ L3 cacheline size of 256B */
-#define CACHE_LINE_SIZE 4096
-
-#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
-
-#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(CACHE_LINE_SIZE))) *reader_time;
-static cycles_t __attribute__((aligned(CACHE_LINE_SIZE))) *writer_time;
-
-void *thr_reader(void *arg)
-{
-	int i, j;
-	cycles_t time1, time2;
-
-	printf("thread_begin %s, thread id : %lx, tid %lu\n",
-			"reader", pthread_self(), (unsigned long)gettid());
-	sleep(2);
-
-	time1 = 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 = get_cycles();
-
-	reader_time[(unsigned long)arg] = time2 - time1;
-
-	sleep(2);
-	printf("thread_end %s, thread id : %lx, tid %lu\n",
-			"reader", pthread_self(), (unsigned long)gettid());
-	return ((void*)1);
-
-}
-
-void *thr_writer(void *arg)
-{
-	int i, j;
-	cycles_t time1, time2;
-
-	printf("thread_begin %s, thread id : %lx, tid %lu\n",
-			"writer", pthread_self(), (unsigned long)gettid());
-	sleep(2);
-
-	for (i = 0; i < OUTER_WRITE_LOOP; i++) {
-		for (j = 0; j < INNER_WRITE_LOOP; j++) {
-			time1 = get_cycles();
-			pthread_rwlock_wrlock(&lock);
-			test_array.a = 8;
-			pthread_rwlock_unlock(&lock);
-			time2 = get_cycles();
-			writer_time[(unsigned long)arg] += time2 - time1;
-			usleep(1);
-		}
-	}
-
-	printf("thread_end %s, thread id : %lx, tid %lu\n",
-			"writer", pthread_self(), (unsigned long)gettid());
-	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, thread id : %lx, tid %lu\n",
-			"main", pthread_self(), (unsigned long)gettid());
-
-	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;
-}