X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=tests%2Fbenchmark%2Ftest_perthreadlock.c;h=7a0b79a81874c3ce6f9ad2aca8bd0f6eef2c61b3;hp=b10c9cd9a15def438f04b0177388689c6f9b4fd9;hb=70469b43316ecc8d6053550504858ad8a8ef9b16;hpb=19d0e7ef8f7998fb256017ba2da414d78b3cb91b diff --git a/tests/benchmark/test_perthreadlock.c b/tests/benchmark/test_perthreadlock.c index b10c9cd..7a0b79a 100644 --- a/tests/benchmark/test_perthreadlock.c +++ b/tests/benchmark/test_perthreadlock.c @@ -20,8 +20,6 @@ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ -#define _GNU_SOURCE -#include "config.h" #include #include #include @@ -35,7 +33,6 @@ #include #include -#include "cpuset.h" #include "thread-id.h" /* hardcoded number of CPUs */ @@ -103,22 +100,20 @@ static void set_affinity(void) #if HAVE_SCHED_SETAFFINITY ret = pthread_mutex_lock(&affinity_mutex); if (ret) { + errno = ret; perror("Error in pthread mutex lock"); - exit(-1); + abort(); } cpu = cpu_affinities[next_aff++]; ret = pthread_mutex_unlock(&affinity_mutex); if (ret) { + errno = ret; perror("Error in pthread mutex unlock"); - exit(-1); + abort(); } 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 */ } @@ -146,29 +141,31 @@ unsigned long long __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *tot_nr_reads; 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) +static void urcu_mutex_lock(pthread_mutex_t *lock) { int ret; - ret = pthread_mutex_lock(&rcu_copy_mutex); + + ret = pthread_mutex_lock(lock); if (ret) { + errno = ret; perror("Error in pthread mutex lock"); - exit(-1); + abort(); } } -void rcu_copy_mutex_unlock(void) +static void urcu_mutex_unlock(pthread_mutex_t *lock) { int ret; - ret = pthread_mutex_unlock(&rcu_copy_mutex); + ret = pthread_mutex_unlock(lock); if (ret) { + errno = ret; perror("Error in pthread mutex unlock"); - exit(-1); + abort(); } } +static void *thr_reader(void *data) { unsigned long tidx = (unsigned long)data; @@ -185,12 +182,12 @@ void *thr_reader(void *data) for (;;) { int v; - pthread_mutex_lock(&per_thread_lock[tidx].lock); + urcu_mutex_lock(&per_thread_lock[tidx].lock); v = test_array.a; assert(v == 8); if (caa_unlikely(rduration)) loop_sleep(rduration); - pthread_mutex_unlock(&per_thread_lock[tidx].lock); + urcu_mutex_unlock(&per_thread_lock[tidx].lock); URCU_TLS(nr_reads)++; if (caa_unlikely(!test_duration_read())) break; @@ -203,6 +200,7 @@ void *thr_reader(void *data) } +static void *thr_writer(void *data) { unsigned long wtidx = (unsigned long)data; @@ -219,15 +217,15 @@ void *thr_writer(void *data) cmm_smp_mb(); for (;;) { - for (tidx = 0; tidx < nr_readers; tidx++) { - pthread_mutex_lock(&per_thread_lock[tidx].lock); + for (tidx = 0; tidx < (long)nr_readers; tidx++) { + urcu_mutex_lock(&per_thread_lock[tidx].lock); } test_array.a = 0; test_array.a = 8; if (caa_unlikely(wduration)) loop_sleep(wduration); for (tidx = (long)nr_readers - 1; tidx >= 0; tidx--) { - pthread_mutex_unlock(&per_thread_lock[tidx].lock); + urcu_mutex_unlock(&per_thread_lock[tidx].lock); } URCU_TLS(nr_writes)++; if (caa_unlikely(!test_duration_write())) @@ -242,7 +240,8 @@ void *thr_writer(void *data) return ((void*)2); } -void show_usage(int argc, char **argv) +static +void show_usage(char **argv) { printf("Usage : %s nr_readers nr_writers duration (s) \n", argv[0]); @@ -262,28 +261,29 @@ int main(int argc, char **argv) void *tret; unsigned long long tot_reads = 0, tot_writes = 0; int i, a; + unsigned int i_thr; if (argc < 4) { - show_usage(argc, argv); + show_usage(argv); return -1; } cmm_smp_mb(); err = sscanf(argv[1], "%u", &nr_readers); if (err != 1) { - show_usage(argc, argv); + show_usage(argv); return -1; } err = sscanf(argv[2], "%u", &nr_writers); if (err != 1) { - show_usage(argc, argv); + show_usage(argv); return -1; } - + err = sscanf(argv[3], "%lu", &duration); if (err != 1) { - show_usage(argc, argv); + show_usage(argv); return -1; } @@ -293,7 +293,7 @@ int main(int argc, char **argv) switch (argv[i][1]) { case 'a': if (argc < i + 2) { - show_usage(argc, argv); + show_usage(argv); return -1; } a = atoi(argv[++i]); @@ -303,21 +303,21 @@ int main(int argc, char **argv) break; case 'c': if (argc < i + 2) { - show_usage(argc, argv); + show_usage(argv); return -1; } rduration = atol(argv[++i]); break; case 'd': if (argc < i + 2) { - show_usage(argc, argv); + show_usage(argv); return -1; } wdelay = atol(argv[++i]); break; case 'e': if (argc < i + 2) { - show_usage(argc, argv); + show_usage(argv); return -1; } wduration = atol(argv[++i]); @@ -340,23 +340,21 @@ int main(int argc, char **argv) tot_nr_reads = calloc(nr_readers, sizeof(*tot_nr_reads)); tot_nr_writes = calloc(nr_writers, sizeof(*tot_nr_writes)); per_thread_lock = calloc(nr_readers, sizeof(*per_thread_lock)); - for (i = 0; i < nr_readers; i++) { - err = pthread_mutex_init(&per_thread_lock[i].lock, NULL); - if (err != 0) - exit(1); + for (i_thr = 0; i_thr < nr_readers; i_thr++) { + pthread_mutex_init(&per_thread_lock[i_thr].lock, NULL); } next_aff = 0; - for (i = 0; i < nr_readers; i++) { - err = pthread_create(&tid_reader[i], NULL, thr_reader, - (void *)(long)i); + for (i_thr = 0; i_thr < nr_readers; i_thr++) { + err = pthread_create(&tid_reader[i_thr], NULL, thr_reader, + (void *)(long)i_thr); if (err != 0) exit(1); } - for (i = 0; i < nr_writers; i++) { - err = pthread_create(&tid_writer[i], NULL, thr_writer, - (void *)(long)i); + for (i_thr = 0; i_thr < nr_writers; i_thr++) { + err = pthread_create(&tid_writer[i_thr], NULL, thr_writer, + (void *)(long)i_thr); if (err != 0) exit(1); } @@ -369,17 +367,17 @@ int main(int argc, char **argv) test_stop = 1; - for (i = 0; i < nr_readers; i++) { - err = pthread_join(tid_reader[i], &tret); + for (i_thr = 0; i_thr < nr_readers; i_thr++) { + err = pthread_join(tid_reader[i_thr], &tret); if (err != 0) exit(1); - tot_reads += tot_nr_reads[i]; + tot_reads += tot_nr_reads[i_thr]; } - for (i = 0; i < nr_writers; i++) { - err = pthread_join(tid_writer[i], &tret); + for (i_thr = 0; i_thr < nr_writers; i_thr++) { + err = pthread_join(tid_writer[i_thr], &tret); if (err != 0) exit(1); - tot_writes += tot_nr_writes[i]; + tot_writes += tot_nr_writes[i_thr]; } printf_verbose("total number of reads : %llu, writes %llu\n", tot_reads,