#Changing the signal number used by the library. SIGUSR1 by default.
#CFLAGS+=-DSIGURCU=SIGUSR2
-SRC_DEP=`echo $^ | sed 's/[^ ]*.h//g'`
+SRC_DEP=`echo $^ | sed 's/[^ ]*\.h//g'`
all: arch-api test_urcu test_urcu_dynamic_link test_urcu_timing \
- test_rwlock_timing test_urcu_yield urcu-asm.S \
+ test_rwlock_timing test_perthreadlock_timing test_urcu_yield urcu-asm.S \
urcu-asm.o urcutorture urcutorture-yield liburcu.so
arch-api: api.h arch.h
test_rwlock_timing: urcu.o test_rwlock_timing.c urcu.h
$(CC) ${CFLAGS} $(LDFLAGS) -o $@ $(SRC_DEP)
+test_perthreadlock_timing: urcu.o test_perthreadlock_timing.c urcu.h
+ $(CC) ${CFLAGS} $(LDFLAGS) -o $@ $(SRC_DEP)
+
urcu.o: urcu.c urcu.h
$(CC) -fPIC ${CFLAGS} $(LDFLAGS) -c -o $@ $(SRC_DEP)
--- /dev/null
+/*
+ * test_perthreadloc_timing.c
+ *
+ * Per thread locks - 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>
+
+#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;
+};
+
+static struct test_array test_array = { 8 };
+
+struct per_thread_lock {
+ pthread_mutex_t lock;
+} __attribute__((aligned(128))); /* cache-line aligned */
+
+static struct per_thread_lock *per_thread_lock;
+
+#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)
+
+#define NR_READ 10
+#define NR_WRITE 9
+
+static cycles_t reader_time[NR_READ] __attribute__((aligned(128)));
+static cycles_t writer_time[NR_WRITE] __attribute__((aligned(128)));
+
+void *thr_reader(void *arg)
+{
+ int i, j;
+ cycles_t time1, time2;
+ long tidx = (long)arg;
+
+ 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_mutex_lock(&per_thread_lock[tidx].lock);
+ assert(test_array.a == 8);
+ pthread_mutex_unlock(&per_thread_lock[tidx].lock);
+ }
+ }
+ time2 = get_cycles();
+
+ reader_time[tidx] = 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;
+ long tidx;
+ 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();
+ for (tidx = 0; tidx < NR_READ; tidx++) {
+ pthread_mutex_lock(&per_thread_lock[tidx].lock);
+ }
+ test_array.a = 8;
+ for (tidx = NR_READ - 1; tidx >= 0; tidx--) {
+ pthread_mutex_unlock(&per_thread_lock[tidx].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 err;
+ pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
+ void *tret;
+ int i;
+ cycles_t tot_rtime = 0;
+ cycles_t tot_wtime = 0;
+
+ printf("thread %-6s, thread id : %lx, tid %lu\n",
+ "main", pthread_self(), (unsigned long)gettid());
+
+ per_thread_lock = malloc(sizeof(struct per_thread_lock) * NR_READ);
+
+ for (i = 0; i < NR_READ; i++) {
+ pthread_mutex_init(&per_thread_lock[i].lock, NULL);
+ }
+ 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(per_thread_lock);
+
+ return 0;
+}
#define INNER_READ_LOOP 100000U
#define READ_LOOP ((unsigned long long)OUTER_READ_LOOP * INNER_READ_LOOP)
-#define WRITE_LOOP 2000U
+#define OUTER_WRITE_LOOP 10U
+#define INNER_WRITE_LOOP 200U
+#define WRITE_LOOP ((unsigned long long)OUTER_WRITE_LOOP * INNER_WRITE_LOOP)
#define NR_READ 10
#define NR_WRITE 9
static cycles_t reader_time[NR_READ] __attribute__((aligned(128)));
+static cycles_t writer_time[NR_WRITE] __attribute__((aligned(128)));
void *thr_reader(void *arg)
{
void *thr_writer(void *arg)
{
- int i;
+ 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 < WRITE_LOOP; i++) {
- pthread_rwlock_wrlock(&lock);
- test_array.a = 8;
- pthread_rwlock_unlock(&lock);
- usleep(1);
+ 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",
pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
void *tret;
int i;
- cycles_t tot_time = 0;
+ cycles_t tot_rtime = 0;
+ cycles_t tot_wtime = 0;
printf("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
exit(1);
}
for (i = 0; i < NR_WRITE; i++) {
- err = pthread_create(&tid_writer[i], NULL, thr_writer, NULL);
+ err = pthread_create(&tid_writer[i], NULL, thr_writer,
+ (void *)(long)i);
if (err != 0)
exit(1);
}
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
exit(1);
- tot_time += reader_time[i];
+ 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_time / ((double)NR_READ * (double)READ_LOOP));
+ (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));
return 0;
}
#define INNER_READ_LOOP 100000U
#define READ_LOOP ((unsigned long long)OUTER_READ_LOOP * INNER_READ_LOOP)
-#define WRITE_LOOP 2000U
+#define OUTER_WRITE_LOOP 10U
+#define INNER_WRITE_LOOP 200U
+#define WRITE_LOOP ((unsigned long long)OUTER_WRITE_LOOP * INNER_WRITE_LOOP)
#define NR_READ 10
#define NR_WRITE 9
static cycles_t reader_time[NR_READ] __attribute__((aligned(128)));
+static cycles_t writer_time[NR_WRITE] __attribute__((aligned(128)));
void *thr_reader(void *arg)
{
void *thr_writer(void *arg)
{
- int i;
+ int i, j;
struct test_array *new, *old;
+ 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 < WRITE_LOOP; i++) {
- new = malloc(sizeof(struct test_array));
- rcu_copy_mutex_lock();
- old = test_rcu_pointer;
- if (old) {
- assert(old->a == 8);
- }
- new->a = 8;
- old = rcu_publish_content(&test_rcu_pointer, new);
- rcu_copy_mutex_unlock();
- /* can be done after unlock */
- if (old) {
- old->a = 0;
+ for (i = 0; i < OUTER_WRITE_LOOP; i++) {
+ time1 = get_cycles();
+ for (j = 0; j < INNER_WRITE_LOOP; j++) {
+ new = malloc(sizeof(struct test_array));
+ rcu_copy_mutex_lock();
+ old = test_rcu_pointer;
+ if (old) {
+ assert(old->a == 8);
+ }
+ new->a = 8;
+ old = rcu_publish_content(&test_rcu_pointer, new);
+ rcu_copy_mutex_unlock();
+ /* can be done after unlock */
+ if (old) {
+ old->a = 0;
+ }
+ free(old);
}
- free(old);
+ time2 = get_cycles();
+ writer_time[(unsigned long)arg] += time2 - time1;
usleep(1);
}
pthread_t tid_reader[NR_READ], tid_writer[NR_WRITE];
void *tret;
int i;
- cycles_t tot_time = 0;
+ cycles_t tot_rtime = 0;
+ cycles_t tot_wtime = 0;
printf("thread %-6s, thread id : %lx, tid %lu\n",
"main", pthread_self(), (unsigned long)gettid());
exit(1);
}
for (i = 0; i < NR_WRITE; i++) {
- err = pthread_create(&tid_writer[i], NULL, thr_writer, NULL);
+ err = pthread_create(&tid_writer[i], NULL, thr_writer,
+ (void *)(long)i);
if (err != 0)
exit(1);
}
err = pthread_join(tid_reader[i], &tret);
if (err != 0)
exit(1);
- tot_time += reader_time[i];
+ 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];
}
free(test_rcu_pointer);
printf("Time per read : %g cycles\n",
- (double)tot_time / ((double)NR_READ * (double)READ_LOOP));
+ (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));
return 0;
}
projects / userspace-rcu.git / commitdiff
