X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=tests%2Fbenchmark%2Ftest_rwlock_timing.c;h=99c957c148c3b92629505a998bcb270aeef6aaa3;hb=014775106c60f02818ca755b331f887030bd440f;hp=fb9e41fdd16c5e804a5eaa584e919058e65ab793;hpb=3fa182868e25068413fdaa1bef290365e99ab246;p=urcu.git diff --git a/tests/benchmark/test_rwlock_timing.c b/tests/benchmark/test_rwlock_timing.c index fb9e41f..99c957c 100644 --- a/tests/benchmark/test_rwlock_timing.c +++ b/tests/benchmark/test_rwlock_timing.c @@ -20,7 +20,6 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#define _GNU_SOURCE #include #include #include @@ -29,11 +28,11 @@ #include #include #include -#include #include #include #include +#include #include "thread-id.h" @@ -43,7 +42,11 @@ struct test_array { int a; }; -pthread_rwlock_t lock = PTHREAD_RWLOCK_INITIALIZER; +/* + * static rwlock initializer is broken on Cygwin. Use runtime + * initialization. + */ +pthread_rwlock_t lock; static struct test_array test_array = { 8 }; @@ -64,9 +67,11 @@ static int num_write; static caa_cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time; static caa_cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time; +static void *thr_reader(void *arg) { - int i, j; + unsigned int i, j; + int ret; caa_cycles_t time1, time2; printf("thread_begin %s, tid %lu\n", @@ -76,9 +81,19 @@ void *thr_reader(void *arg) 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); + ret = pthread_rwlock_rdlock(&lock); + if (ret) { + fprintf(stderr, "reader pthread_rwlock_rdlock: %s\n", strerror(ret)); + abort(); + } + + urcu_posix_assert(test_array.a == 8); + + ret = pthread_rwlock_unlock(&lock); + if (ret) { + fprintf(stderr, "reader pthread_rwlock_unlock: %s\n", strerror(ret)); + abort(); + } } } time2 = caa_get_cycles(); @@ -92,9 +107,11 @@ void *thr_reader(void *arg) } +static void *thr_writer(void *arg) { - int i, j; + unsigned int i, j; + int ret; caa_cycles_t time1, time2; printf("thread_begin %s, tid %lu\n", @@ -104,9 +121,20 @@ void *thr_writer(void *arg) for (i = 0; i < OUTER_WRITE_LOOP; i++) { for (j = 0; j < INNER_WRITE_LOOP; j++) { time1 = caa_get_cycles(); - pthread_rwlock_wrlock(&lock); + ret = pthread_rwlock_wrlock(&lock); + if (ret) { + fprintf(stderr, "writer pthread_rwlock_wrlock: %s\n", strerror(ret)); + abort(); + } + test_array.a = 8; - pthread_rwlock_unlock(&lock); + + ret = pthread_rwlock_unlock(&lock); + if (ret) { + fprintf(stderr, "writer pthread_rwlock_unlock: %s\n", strerror(ret)); + abort(); + } + time2 = caa_get_cycles(); writer_time[(unsigned long)arg] += time2 - time1; usleep(1); @@ -134,6 +162,12 @@ int main(int argc, char **argv) num_read = atoi(argv[1]); num_write = atoi(argv[2]); + err = pthread_rwlock_init(&lock, NULL); + if (err != 0) { + fprintf(stderr, "pthread_rwlock_init: (%d) %s\n", err, strerror(err)); + exit(1); + } + reader_time = calloc(num_read, sizeof(*reader_time)); writer_time = calloc(num_write, sizeof(*writer_time)); tid_reader = calloc(num_read, sizeof(*tid_reader)); @@ -174,6 +208,11 @@ int main(int argc, char **argv) printf("Time per write : %g cycles\n", (double)tot_wtime / ((double)NR_WRITE * (double)WRITE_LOOP)); + err = pthread_rwlock_destroy(&lock); + if (err != 0) { + fprintf(stderr, "pthread_rwlock_destroy: (%d) %s\n", err, strerror(err)); + exit(1); + } free(reader_time); free(writer_time); free(tid_reader);