static void
test_benchmark(struct ovs_cmdl_context *ctx)
{
struct thread_aux *threads;
long long start;
unsigned i;
fatal_signal_init();
/* Parse arguments */
n_threads = strtoul(ctx->argv[1], NULL, 0);
if (!n_threads) {
ovs_fatal(0, "n_threads must be at least one");
}
n_pkts = strtoul(ctx->argv[2], NULL, 0);
batch_size = strtoul(ctx->argv[3], NULL, 0);
if (batch_size == 0 || batch_size > NETDEV_MAX_BURST) {
ovs_fatal(0, "batch_size must be between 1 and NETDEV_MAX_BURST(%u)",
NETDEV_MAX_BURST);
}
if (ctx->argc > 4) {
change_conn = strtoul(ctx->argv[4], NULL, 0);
}
threads = xcalloc(n_threads, sizeof *threads);
ovs_barrier_init(&barrier, n_threads + 1);
ct = conntrack_init();
/* Create threads */
for (i = 0; i < n_threads; i++) {
threads[i].tid = i;
threads[i].thread = ovs_thread_create("ct_thread", ct_thread_main,
&threads[i]);
}
/* Starts the work inside the threads */
ovs_barrier_block(&barrier);
start = time_msec();
/* Wait for the threads to finish the work */
ovs_barrier_block(&barrier);
printf("conntrack: %5lld ms\n", time_msec() - start);
for (i = 0; i < n_threads; i++) {
xpthread_join(threads[i].thread, NULL);
}
conntrack_destroy(ct);
ovs_barrier_destroy(&barrier);
free(threads);
}
static void
benchmark_ccmap(void)
{
struct ccmap ccmap;
struct timeval start;
pthread_t *threads;
struct ccmap_aux aux;
size_t i;
/* Insertions. */
xgettimeofday(&start);
ccmap_init(&ccmap);
for (i = 0; i < n_elems; i++) {
ccmap_inc(&ccmap, hash_int(i, 0));
}
printf("ccmap insert: %5d ms\n", elapsed(&start));
/* Search and mutation. */
xgettimeofday(&start);
aux.ccmap = &ccmap;
ovs_mutex_init(&aux.mutex);
threads = xmalloc(n_threads * sizeof *threads);
for (i = 0; i < n_threads; i++) {
threads[i] = ovs_thread_create("search", search_ccmap, &aux);
}
for (i = 0; i < n_threads; i++) {
xpthread_join(threads[i], NULL);
}
free(threads);
printf("ccmap search: %5d ms\n", elapsed(&start));
/* Destruction. */
xgettimeofday(&start);
for (i = 0; i < n_elems; i++) {
uint32_t hash = hash_int(i, 0);
if (ccmap_find(&ccmap, hash)) {
/* Also remove any colliding hashes. */
while (ccmap_dec(&ccmap, hash)) {
;
}
}
}
ccmap_destroy(&ccmap);
printf("ccmap destroy: %5d ms\n", elapsed(&start));
}
