/** * Get the driver metrics * * @param metrics Metrics to assign from the active session */ void get_metrics(CassMetrics *metrics) { cass_session_get_metrics(session_.get(), metrics); }
/** * Get the number of connections established by the driver. * * @param session Session instance * @param Total number of connections */ cass_uint64_t get_total_connections(test_utils::CassSessionPtr session) { CassMetrics metrics; cass_session_get_metrics(session.get(), &metrics); return metrics.stats.total_connections; }
int main() { int i; CassMetrics metrics; uv_thread_t threads[NUM_THREADS]; CassCluster* cluster = NULL; CassSession* session = NULL; CassFuture* close_future = NULL; status_init(&status, NUM_THREADS); cass_log_set_level(CASS_LOG_INFO); cluster = create_cluster(); uuid_gen = cass_uuid_gen_new(); session = cass_session_new(); if (connect_session(session, cluster) != CASS_OK) { cass_cluster_free(cluster); cass_session_free(session); return -1; } execute_query(session, "INSERT INTO songs (id, title, album, artist, tags) VALUES " "(a98d21b2-1900-11e4-b97b-e5e358e71e0d, " "'La Petite Tonkinoise', 'Bye Bye Blackbird', 'Joséphine Baker', { 'jazz', '2013' });"); for (i = 0; i < NUM_THREADS; ++i) { #if DO_SELECTS uv_thread_create(&threads[i], run_select_queries, (void*)session); #else uv_thread_create(&threads[i], run_insert_queries, (void*)session); #endif } while (status_wait(&status, 5) > 0) { cass_session_get_metrics(session, &metrics); printf("rate stats (requests/second): mean %f 1m %f 5m %f 10m %f\n", metrics.requests.mean_rate, metrics.requests.one_minute_rate, metrics.requests.five_minute_rate, metrics.requests.fifteen_minute_rate); } cass_session_get_metrics(session, &metrics); printf("final stats (microseconds): min %llu max %llu median %llu 75th %llu 95th %llu 98th %llu 99th %llu 99.9th %llu\n", (unsigned long long int)metrics.requests.min, (unsigned long long int)metrics.requests.max, (unsigned long long int)metrics.requests.median, (unsigned long long int)metrics.requests.percentile_75th, (unsigned long long int)metrics.requests.percentile_95th, (unsigned long long int)metrics.requests.percentile_98th, (unsigned long long int)metrics.requests.percentile_99th, (unsigned long long int)metrics.requests.percentile_999th); for (i = 0; i < NUM_THREADS; ++i) { uv_thread_join(&threads[i]); } close_future = cass_session_close(session); cass_future_wait(close_future); cass_future_free(close_future); cass_cluster_free(cluster); cass_uuid_gen_free(uuid_gen); status_destroy(&status); return 0; }