[urcu.git] / tests / benchmark / test_urcu_defer.c

/*
 * test_urcu_defer.c
 *
 * Userspace RCU library - test program (with automatic reclamation)
 *
 * 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 "config.h"
#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 <errno.h>

#include <urcu/arch.h>
#include <urcu/tls-compat.h>
#include "cpuset.h"
#include "thread-id.h"
#include "../common/debug-yield.h"

/* hardcoded number of CPUs */
#define NR_CPUS 16384

#ifndef DYNAMIC_LINK_TEST
#define _LGPL_SOURCE
#endif
#include <urcu.h>
#include <urcu-defer.h>

struct test_array {
	int a;
};

static volatile int test_go, test_stop;

static unsigned long wdelay;

static struct test_array *test_rcu_pointer;

static unsigned long duration;

/* read-side C.S. duration, in loops */
static unsigned long rduration;

/* write-side C.S. duration, in loops */
static unsigned long wduration;

static inline void loop_sleep(unsigned long loops)
{
	while (loops-- != 0)
		caa_cpu_relax();
}

static int verbose_mode;

#define printf_verbose(fmt, args...)		\
	do {					\
		if (verbose_mode)		\
			printf(fmt, args);	\
	} while (0)

static unsigned int cpu_affinities[NR_CPUS];
static unsigned int next_aff = 0;
static int use_affinity = 0;

pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;

static void set_affinity(void)
{
#if HAVE_SCHED_SETAFFINITY
	cpu_set_t mask;
	int cpu, ret;
#endif /* HAVE_SCHED_SETAFFINITY */

	if (!use_affinity)
		return;

#if HAVE_SCHED_SETAFFINITY
	ret = pthread_mutex_lock(&affinity_mutex);
	if (ret) {
		perror("Error in pthread mutex lock");
		exit(-1);
	}
	cpu = cpu_affinities[next_aff++];
	ret = pthread_mutex_unlock(&affinity_mutex);
	if (ret) {
		perror("Error in pthread mutex unlock");
		exit(-1);
	}

	CPU_ZERO(&mask);
	CPU_SET(cpu, &mask);
#if SCHED_SETAFFINITY_ARGS == 2
	sched_setaffinity(0, &mask);
#else
	sched_setaffinity(0, sizeof(mask), &mask);
#endif
#endif /* HAVE_SCHED_SETAFFINITY */
}

/*
 * returns 0 if test should end.
 */
static int test_duration_write(void)
{
	return !test_stop;
}

static int test_duration_read(void)
{
	return !test_stop;
}

static DEFINE_URCU_TLS(unsigned long long, nr_writes);
static DEFINE_URCU_TLS(unsigned long long, nr_reads);

static
unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_writes;

static unsigned int nr_readers;
static unsigned int nr_writers;

pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER;

void rcu_copy_mutex_lock(void)
{
	int ret;
	ret = pthread_mutex_lock(&rcu_copy_mutex);
	if (ret) {
		perror("Error in pthread mutex lock");
		exit(-1);
	}
}

void rcu_copy_mutex_unlock(void)
{
	int ret;

	ret = pthread_mutex_unlock(&rcu_copy_mutex);
	if (ret) {
		perror("Error in pthread mutex unlock");
		exit(-1);
	}
}

void *thr_reader(void *_count)
{
	unsigned long long *count = _count;
	struct test_array *local_ptr;

	printf_verbose("thread_begin %s, tid %lu\n",
			"reader", urcu_get_thread_id());

	set_affinity();

	rcu_register_thread();

	while (!test_go)
	{
	}
	cmm_smp_mb();

	for (;;) {
		rcu_read_lock();
		local_ptr = rcu_dereference(test_rcu_pointer);
		rcu_debug_yield_read();
		if (local_ptr)
			assert(local_ptr->a == 8);
		if (caa_unlikely(rduration))
			loop_sleep(rduration);
		rcu_read_unlock();
		URCU_TLS(nr_reads)++;
		if (caa_unlikely(!test_duration_read()))
			break;
	}

	rcu_unregister_thread();

	*count = URCU_TLS(nr_reads);
	printf_verbose("thread_end %s, tid %lu\n",
			"reader", urcu_get_thread_id());
	return ((void*)1);

}

static void test_cb2(void *data)
{
}

static void test_cb1(void *data)
{
}

void *thr_writer(void *data)
{
	unsigned long wtidx = (unsigned long)data;
	struct test_array *new, *old = NULL;
	int ret;

	printf_verbose("thread_begin %s, tid %lu\n",
			"writer", urcu_get_thread_id());

	set_affinity();

	ret = rcu_defer_register_thread();
	if (ret) {
		printf("Error in rcu_defer_register_thread\n");
		exit(-1);
	}

	while (!test_go)
	{
	}
	cmm_smp_mb();

	for (;;) {
		new = malloc(sizeof(*new));
		new->a = 8;
		old = rcu_xchg_pointer(&test_rcu_pointer, new);
		if (caa_unlikely(wduration))
			loop_sleep(wduration);
		defer_rcu(free, old);
		defer_rcu(test_cb1, old);
		defer_rcu(test_cb1, (void *)-2L);
		defer_rcu(test_cb1, (void *)-2L);
		defer_rcu(test_cb1, old);
		defer_rcu(test_cb2, (void *)-2L);
		defer_rcu(test_cb2, (void *)-4L);
		defer_rcu(test_cb2, (void *)-2L);
		URCU_TLS(nr_writes)++;
		if (caa_unlikely(!test_duration_write()))
			break;
		if (caa_unlikely(wdelay))
			loop_sleep(wdelay);
	}

	rcu_defer_unregister_thread();

	printf_verbose("thread_end %s, tid %lu\n",
			"writer", urcu_get_thread_id());
	tot_nr_writes[wtidx] = URCU_TLS(nr_writes);
	return ((void*)2);
}

void show_usage(int argc, char **argv)
{
	printf("Usage : %s nr_readers nr_writers duration (s) <OPTIONS>\n",
		argv[0]);
	printf("OPTIONS:\n");
	printf("	[-r] [-w] (yield reader and/or writer)\n");
	printf("	[-d delay] (writer period (us))\n");
	printf("	[-c duration] (reader C.S. duration (in loops))\n");
	printf("	[-e duration] (writer C.S. duration (in loops))\n");
	printf("	[-v] (verbose output)\n");
	printf("	[-a cpu#] [-a cpu#]... (affinity)\n");
	printf("\n");
}

int main(int argc, char **argv)
{
	int err;
	pthread_t *tid_reader, *tid_writer;
	void *tret;
	unsigned long long *count_reader;
	unsigned long long tot_reads = 0, tot_writes = 0;
	int i, a;

	if (argc < 4) {
		show_usage(argc, argv);
		return -1;
	}

	err = sscanf(argv[1], "%u", &nr_readers);
	if (err != 1) {
		show_usage(argc, argv);
		return -1;
	}

	err = sscanf(argv[2], "%u", &nr_writers);
	if (err != 1) {
		show_usage(argc, argv);
		return -1;
	}
	
	err = sscanf(argv[3], "%lu", &duration);
	if (err != 1) {
		show_usage(argc, argv);
		return -1;
	}

	for (i = 4; i < argc; i++) {
		if (argv[i][0] != '-')
			continue;
		switch (argv[i][1]) {
		case 'r':
			rcu_debug_yield_enable(RCU_YIELD_READ);
			break;
		case 'w':
			rcu_debug_yield_enable(RCU_YIELD_WRITE);
			break;
		case 'a':
			if (argc < i + 2) {
				show_usage(argc, argv);
				return -1;
			}
			a = atoi(argv[++i]);
			cpu_affinities[next_aff++] = a;
			use_affinity = 1;
			printf_verbose("Adding CPU %d affinity\n", a);
			break;
		case 'c':
			if (argc < i + 2) {
				show_usage(argc, argv);
				return -1;
			}
			rduration = atol(argv[++i]);
			break;
		case 'd':
			if (argc < i + 2) {
				show_usage(argc, argv);
				return -1;
			}
			wdelay = atol(argv[++i]);
			break;
		case 'e':
			if (argc < i + 2) {
				show_usage(argc, argv);
				return -1;
			}
			wduration = atol(argv[++i]);
			break;
		case 'v':
			verbose_mode = 1;
			break;
		}
	}

	printf_verbose("running test for %lu seconds, %u readers, %u writers.\n",
		duration, nr_readers, nr_writers);
	printf_verbose("Writer delay : %lu loops.\n", wdelay);
	printf_verbose("Reader duration : %lu loops.\n", rduration);
	printf_verbose("thread %-6s, tid %lu\n",
			"main", urcu_get_thread_id());

	tid_reader = calloc(nr_readers, sizeof(*tid_reader));
	tid_writer = calloc(nr_writers, sizeof(*tid_writer));
	count_reader = calloc(nr_readers, sizeof(*count_reader));
	tot_nr_writes = calloc(nr_writers, sizeof(*tot_nr_writes));

	next_aff = 0;

	for (i = 0; i < nr_readers; i++) {
		err = pthread_create(&tid_reader[i], NULL, thr_reader,
				     &count_reader[i]);
		if (err != 0)
			exit(1);
	}
	for (i = 0; i < nr_writers; i++) {
		err = pthread_create(&tid_writer[i], NULL, thr_writer,
				     (void *)(long)i);
		if (err != 0)
			exit(1);
	}

	cmm_smp_mb();

	test_go = 1;

	sleep(duration);

	test_stop = 1;

	for (i = 0; i < nr_readers; i++) {
		err = pthread_join(tid_reader[i], &tret);
		if (err != 0)
			exit(1);
		tot_reads += count_reader[i];
	}
	for (i = 0; i < nr_writers; i++) {
		err = pthread_join(tid_writer[i], &tret);
		if (err != 0)
			exit(1);
		tot_writes += tot_nr_writes[i];
	}
	
	printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
	       tot_writes);
	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu wdur %6lu "
		"nr_writers %3u "
		"wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu\n",
		argv[0], duration, nr_readers, rduration, wduration,
		nr_writers, wdelay, tot_reads, tot_writes,
		tot_reads + tot_writes);
	free(tid_reader);
	free(tid_writer);
	free(count_reader);
	free(tot_nr_writes);

	return 0;
}
Commit	Line	Data
90075a50	1	/*
786ee85b	2	* test_urcu_defer.c
90075a50 MD	3	*
	4	* Userspace RCU library - test program (with automatic reclamation)
	5	*
6982d6d7	6	* Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
90075a50 MD	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License along
	19	* with this program; if not, write to the Free Software Foundation, Inc.,
	20	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	21	*/
	22
	23	#define _GNU_SOURCE
f5ab766e	24	#include "config.h"
90075a50 MD	25	#include <stdio.h>
	26	#include <pthread.h>
	27	#include <stdlib.h>
	28	#include <string.h>
	29	#include <sys/types.h>
	30	#include <sys/wait.h>
	31	#include <unistd.h>
	32	#include <stdio.h>
	33	#include <assert.h>
94b343fd	34	#include <errno.h>
90075a50	35
ec4e58a3	36	#include <urcu/arch.h>
bd252a04	37	#include <urcu/tls-compat.h>
2953b501	38	#include "cpuset.h"
94df6318	39	#include "thread-id.h"
2650042a	40	#include "../common/debug-yield.h"
65fcc7e9	41
90075a50 MD	42	/* hardcoded number of CPUs */
	43	#define NR_CPUS 16384
	44
90075a50 MD	45	#ifndef DYNAMIC_LINK_TEST
90075a50 MD	46	#define _LGPL_SOURCE
90075a50	47	#endif
ec4e58a3 MD	48	#include <urcu.h>
ec4e58a3 MD	49	#include <urcu-defer.h>
90075a50 MD	50
	51	struct test_array {
	52	int a;
	53	};
	54
	55	static volatile int test_go, test_stop;
	56
	57	static unsigned long wdelay;
	58
	59	static struct test_array *test_rcu_pointer;
	60
	61	static unsigned long duration;
	62
	63	/* read-side C.S. duration, in loops */
	64	static unsigned long rduration;
	65
31b598e0 MD	66	/* write-side C.S. duration, in loops */
	67	static unsigned long wduration;
	68
ab0aacbe	69	static inline void loop_sleep(unsigned long loops)
90075a50	70	{
ab0aacbe	71	while (loops-- != 0)
06f22bdb	72	caa_cpu_relax();
90075a50 MD	73	}
	74
	75	static int verbose_mode;
	76
	77	#define printf_verbose(fmt, args...) \
	78	do { \
	79	if (verbose_mode) \
	80	printf(fmt, args); \
	81	} while (0)
	82
	83	static unsigned int cpu_affinities[NR_CPUS];
	84	static unsigned int next_aff = 0;
	85	static int use_affinity = 0;
	86
	87	pthread_mutex_t affinity_mutex = PTHREAD_MUTEX_INITIALIZER;
	88
	89	static void set_affinity(void)
	90	{
95bc7fb9	91	#if HAVE_SCHED_SETAFFINITY
90075a50	92	cpu_set_t mask;
95bc7fb9 MD	93	int cpu, ret;
95bc7fb9 MD	94	#endif /* HAVE_SCHED_SETAFFINITY */
90075a50 MD	95
	96	if (!use_affinity)
	97	return;
	98
d8540fc5	99	#if HAVE_SCHED_SETAFFINITY
90075a50 MD	100	ret = pthread_mutex_lock(&affinity_mutex);
	101	if (ret) {
	102	perror("Error in pthread mutex lock");
	103	exit(-1);
	104	}
	105	cpu = cpu_affinities[next_aff++];
	106	ret = pthread_mutex_unlock(&affinity_mutex);
	107	if (ret) {
	108	perror("Error in pthread mutex unlock");
	109	exit(-1);
	110	}
d8540fc5	111
90075a50 MD	112	CPU_ZERO(&mask);
90075a50 MD	113	CPU_SET(cpu, &mask);
d8540fc5 PA	114	#if SCHED_SETAFFINITY_ARGS == 2
	115	sched_setaffinity(0, &mask);
	116	#else
90075a50	117	sched_setaffinity(0, sizeof(mask), &mask);
d8540fc5 PA	118	#endif
d8540fc5 PA	119	#endif /* HAVE_SCHED_SETAFFINITY */
90075a50 MD	120	}
	121
	122	/*
	123	* returns 0 if test should end.
	124	*/
	125	static int test_duration_write(void)
	126	{
	127	return !test_stop;
	128	}
	129
	130	static int test_duration_read(void)
	131	{
	132	return !test_stop;
	133	}
	134
bd252a04 MD	135	static DEFINE_URCU_TLS(unsigned long long, nr_writes);
bd252a04 MD	136	static DEFINE_URCU_TLS(unsigned long long, nr_reads);
90075a50 MD	137
90075a50 MD	138	static
06f22bdb	139	unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_writes;
90075a50 MD	140
	141	static unsigned int nr_readers;
	142	static unsigned int nr_writers;
	143
	144	pthread_mutex_t rcu_copy_mutex = PTHREAD_MUTEX_INITIALIZER;
	145
	146	void rcu_copy_mutex_lock(void)
	147	{
	148	int ret;
	149	ret = pthread_mutex_lock(&rcu_copy_mutex);
	150	if (ret) {
	151	perror("Error in pthread mutex lock");
	152	exit(-1);
	153	}
	154	}
	155
	156	void rcu_copy_mutex_unlock(void)
	157	{
	158	int ret;
	159
	160	ret = pthread_mutex_unlock(&rcu_copy_mutex);
	161	if (ret) {
	162	perror("Error in pthread mutex unlock");
	163	exit(-1);
	164	}
	165	}
	166
	167	void thr_reader(void _count)
	168	{
	169	unsigned long long *count = _count;
	170	struct test_array *local_ptr;
	171
94df6318 MD	172	printf_verbose("thread_begin %s, tid %lu\n",
94df6318 MD	173	"reader", urcu_get_thread_id());
90075a50 MD	174
	175	set_affinity();
	176
	177	rcu_register_thread();
	178
	179	while (!test_go)
	180	{
	181	}
5481ddb3	182	cmm_smp_mb();
90075a50 MD	183
	184	for (;;) {
	185	rcu_read_lock();
	186	local_ptr = rcu_dereference(test_rcu_pointer);
1de4df4b	187	rcu_debug_yield_read();
90075a50 MD	188	if (local_ptr)
90075a50 MD	189	assert(local_ptr->a == 8);
a0b7f7ea	190	if (caa_unlikely(rduration))
90075a50 MD	191	loop_sleep(rduration);
90075a50 MD	192	rcu_read_unlock();
bd252a04	193	URCU_TLS(nr_reads)++;
a0b7f7ea	194	if (caa_unlikely(!test_duration_read()))
90075a50 MD	195	break;
	196	}
	197
	198	rcu_unregister_thread();
	199
bd252a04	200	*count = URCU_TLS(nr_reads);
94df6318 MD	201	printf_verbose("thread_end %s, tid %lu\n",
94df6318 MD	202	"reader", urcu_get_thread_id());
90075a50 MD	203	return ((void*)1);
	204
	205	}
	206
804b4375 MD	207	static void test_cb2(void *data)
	208	{
	209	}
	210
	211	static void test_cb1(void *data)
	212	{
	213	}
	214
90075a50 MD	215	void thr_writer(void data)
	216	{
	217	unsigned long wtidx = (unsigned long)data;
	218	struct test_array new, old = NULL;
6ade67d5	219	int ret;
90075a50	220
94df6318 MD	221	printf_verbose("thread_begin %s, tid %lu\n",
94df6318 MD	222	"writer", urcu_get_thread_id());
90075a50 MD	223
	224	set_affinity();
	225
6ade67d5 MD	226	ret = rcu_defer_register_thread();
	227	if (ret) {
	228	printf("Error in rcu_defer_register_thread\n");
	229	exit(-1);
	230	}
90075a50 MD	231
	232	while (!test_go)
	233	{
	234	}
5481ddb3	235	cmm_smp_mb();
90075a50 MD	236
	237	for (;;) {
	238	new = malloc(sizeof(*new));
	239	new->a = 8;
	240	old = rcu_xchg_pointer(&test_rcu_pointer, new);
a0b7f7ea	241	if (caa_unlikely(wduration))
31b598e0	242	loop_sleep(wduration);
b4f313b7 MD	243	defer_rcu(free, old);
	244	defer_rcu(test_cb1, old);
	245	defer_rcu(test_cb1, (void *)-2L);
	246	defer_rcu(test_cb1, (void *)-2L);
	247	defer_rcu(test_cb1, old);
	248	defer_rcu(test_cb2, (void *)-2L);
	249	defer_rcu(test_cb2, (void *)-4L);
	250	defer_rcu(test_cb2, (void *)-2L);
bd252a04	251	URCU_TLS(nr_writes)++;
a0b7f7ea	252	if (caa_unlikely(!test_duration_write()))
90075a50	253	break;
a0b7f7ea	254	if (caa_unlikely(wdelay))
90075a50 MD	255	loop_sleep(wdelay);
	256	}
	257
786ee85b	258	rcu_defer_unregister_thread();
90075a50	259
94df6318 MD	260	printf_verbose("thread_end %s, tid %lu\n",
94df6318 MD	261	"writer", urcu_get_thread_id());
bd252a04	262	tot_nr_writes[wtidx] = URCU_TLS(nr_writes);
90075a50 MD	263	return ((void*)2);
	264	}
	265
	266	void show_usage(int argc, char **argv)
	267	{
06637138 MD	268	printf("Usage : %s nr_readers nr_writers duration (s) <OPTIONS>\n",
	269	argv[0]);
	270	printf("OPTIONS:\n");
06637138	271	printf(" [-r] [-w] (yield reader and/or writer)\n");
06637138 MD	272	printf(" [-d delay] (writer period (us))\n");
	273	printf(" [-c duration] (reader C.S. duration (in loops))\n");
	274	printf(" [-e duration] (writer C.S. duration (in loops))\n");
	275	printf(" [-v] (verbose output)\n");
	276	printf(" [-a cpu#] [-a cpu#]... (affinity)\n");
90075a50 MD	277	printf("\n");
	278	}
	279
	280	int main(int argc, char **argv)
	281	{
	282	int err;
	283	pthread_t tid_reader, tid_writer;
	284	void *tret;
	285	unsigned long long *count_reader;
	286	unsigned long long tot_reads = 0, tot_writes = 0;
	287	int i, a;
	288
	289	if (argc < 4) {
	290	show_usage(argc, argv);
	291	return -1;
	292	}
	293
	294	err = sscanf(argv[1], "%u", &nr_readers);
	295	if (err != 1) {
	296	show_usage(argc, argv);
	297	return -1;
	298	}
	299
	300	err = sscanf(argv[2], "%u", &nr_writers);
	301	if (err != 1) {
	302	show_usage(argc, argv);
	303	return -1;
	304	}
	305
	306	err = sscanf(argv[3], "%lu", &duration);
	307	if (err != 1) {
	308	show_usage(argc, argv);
	309	return -1;
	310	}
	311
	312	for (i = 4; i < argc; i++) {
	313	if (argv[i][0] != '-')
	314	continue;
	315	switch (argv[i][1]) {
90075a50	316	case 'r':
2650042a	317	rcu_debug_yield_enable(RCU_YIELD_READ);
90075a50 MD	318	break;
90075a50 MD	319	case 'w':
2650042a	320	rcu_debug_yield_enable(RCU_YIELD_WRITE);
90075a50	321	break;
90075a50 MD	322	case 'a':
	323	if (argc < i + 2) {
	324	show_usage(argc, argv);
	325	return -1;
	326	}
	327	a = atoi(argv[++i]);
	328	cpu_affinities[next_aff++] = a;
	329	use_affinity = 1;
	330	printf_verbose("Adding CPU %d affinity\n", a);
	331	break;
	332	case 'c':
	333	if (argc < i + 2) {
	334	show_usage(argc, argv);
	335	return -1;
	336	}
	337	rduration = atol(argv[++i]);
	338	break;
	339	case 'd':
	340	if (argc < i + 2) {
	341	show_usage(argc, argv);
	342	return -1;
	343	}
	344	wdelay = atol(argv[++i]);
	345	break;
31b598e0 MD	346	case 'e':
	347	if (argc < i + 2) {
	348	show_usage(argc, argv);
	349	return -1;
	350	}
	351	wduration = atol(argv[++i]);
	352	break;
90075a50 MD	353	case 'v':
	354	verbose_mode = 1;
	355	break;
	356	}
	357	}
	358
	359	printf_verbose("running test for %lu seconds, %u readers, %u writers.\n",
	360	duration, nr_readers, nr_writers);
	361	printf_verbose("Writer delay : %lu loops.\n", wdelay);
	362	printf_verbose("Reader duration : %lu loops.\n", rduration);
94df6318 MD	363	printf_verbose("thread %-6s, tid %lu\n",
94df6318 MD	364	"main", urcu_get_thread_id());
90075a50	365
9aa14175 MD	366	tid_reader = calloc(nr_readers, sizeof(*tid_reader));
	367	tid_writer = calloc(nr_writers, sizeof(*tid_writer));
	368	count_reader = calloc(nr_readers, sizeof(*count_reader));
	369	tot_nr_writes = calloc(nr_writers, sizeof(*tot_nr_writes));
90075a50 MD	370
	371	next_aff = 0;
	372
	373	for (i = 0; i < nr_readers; i++) {
	374	err = pthread_create(&tid_reader[i], NULL, thr_reader,
	375	&count_reader[i]);
	376	if (err != 0)
	377	exit(1);
	378	}
	379	for (i = 0; i < nr_writers; i++) {
	380	err = pthread_create(&tid_writer[i], NULL, thr_writer,
	381	(void *)(long)i);
	382	if (err != 0)
	383	exit(1);
	384	}
	385
5481ddb3	386	cmm_smp_mb();
90075a50 MD	387
	388	test_go = 1;
	389
	390	sleep(duration);
	391
	392	test_stop = 1;
	393
	394	for (i = 0; i < nr_readers; i++) {
	395	err = pthread_join(tid_reader[i], &tret);
	396	if (err != 0)
	397	exit(1);
	398	tot_reads += count_reader[i];
	399	}
	400	for (i = 0; i < nr_writers; i++) {
	401	err = pthread_join(tid_writer[i], &tret);
	402	if (err != 0)
	403	exit(1);
	404	tot_writes += tot_nr_writes[i];
	405	}
	406
	407	printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,
	408	tot_writes);
a50a7b43	409	printf("SUMMARY %-25s testdur %4lu nr_readers %3u rdur %6lu wdur %6lu "
90075a50 MD	410	"nr_writers %3u "
90075a50 MD	411	"wdelay %6lu nr_reads %12llu nr_writes %12llu nr_ops %12llu\n",
a50a7b43	412	argv[0], duration, nr_readers, rduration, wduration,
90075a50 MD	413	nr_writers, wdelay, tot_reads, tot_writes,
	414	tot_reads + tot_writes);
	415	free(tid_reader);
	416	free(tid_writer);
	417	free(count_reader);
	418	free(tot_nr_writes);
	419
	420	return 0;
	421	}