#define PING 1
#define PONG 2
-/**
- * How many peers to run
- */
-#define TOTAL_PEERS 20
-
-/**
- * How many peers do pinging
- */
-#define PING_PEERS 3
-
-/**
- * Duration of each round.
- */
-#define ROUND_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 10)
/**
* Paximum ping period in milliseconds. Real period = rand (0, PING_PERIOD)
#define SHORT_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60)
/**
- * Ratio of peers active. First round always is 1.0.
+ * Total number of rounds.
*/
-static float rounds[] = {0.8, 0.7, 0.6, 0.5, 0.0};
+#define number_rounds sizeof(rounds)/sizeof(rounds[0])
/**
- * Total number of rounds.
+ * Ratio of peers active. First round always is 1.0.
*/
-static const unsigned int number_rounds = sizeof(rounds)/sizeof(rounds[0]);
+static float rounds[] = {0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.0};
/**
* Message type for pings.
*/
struct GNUNET_MESH_Channel *incoming_ch;
+ /**
+ * Channel handle for a warmup channel.
+ */
+ struct GNUNET_MESH_Channel *warmup_ch;
+
/**
* Number of payload packes sent
*/
};
+/**
+ * Duration of each round.
+ */
+static struct GNUNET_TIME_Relative round_time;
+
/**
* GNUNET_PeerIdentity -> MeshPeer
*/
/**
* Operation to get peer ids.
*/
-struct MeshPeer peers[TOTAL_PEERS];
+struct MeshPeer *peers;
/**
* Peer ids counter.
static unsigned int p_ids;
/**
- * Total number of currently running peers.
+ * Total number of peers.
+ */
+static unsigned long long peers_total;
+
+/**
+ * Number of currently running peers.
*/
static unsigned long long peers_running;
+/**
+ * Number of peers doing pings.
+ */
+static unsigned long long peers_pinging;
+
/**
* Test context (to shut down).
*/
*/
static unsigned int current_round;
+
+/**
+ * Do preconnect? (Each peer creates a tunnel to one other peer).
+ */
+static int do_warmup;
+
+/**
+ * Warmup progress.
+ */
+static unsigned int peers_warmup;
+
/**
* Flag to notify callbacks not to generate any new traffic anymore.
*/
static int test_finished;
+
+/**
+ * START THE TEST ITSELF, AS WE ARE CONNECTED TO THE MESH SERVICES.
+ *
+ * Testcase continues when the root receives confirmation of connected peers,
+ * on callback funtion ch.
+ *
+ * @param cls Closure (unsued).
+ * @param tc Task Context.
+ */
+static void
+start_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
/**
* Calculate a random delay.
*
for (i = 0; i < number_rounds; i++)
{
- for (j = 0; j < PING_PEERS; j++)
+ for (j = 0; j < peers_pinging; j++)
{
peer = &peers[j];
- FPRINTF (stdout, "ROUND %u PEER %u: %f, PINGS: %u, PONGS: %u\n",
- i, j, ((float)peer->sum_delay[i])/peer->pongs[i],
+ FPRINTF (stdout,
+ "ROUND %3u PEER %3u: %10.2f / %10.2f, PINGS: %3u, PONGS: %3u\n",
+ i, j, peer->mean[i], sqrt (peer->var[i] / (peer->pongs[i] - 1)),
peer->pings[i], peer->pongs[i]);
}
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"disconnecting mesh service, called from line %ld\n", line);
disconnect_task = GNUNET_SCHEDULER_NO_TASK;
- for (i = 0; i < TOTAL_PEERS; i++)
+ for (i = 0; i < peers_total; i++)
{
if (NULL != peers[i].op)
GNUNET_TESTBED_operation_done (peers[i].op);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u: channel %p\n", i, peers[i].ch);
GNUNET_MESH_channel_destroy (peers[i].ch);
}
+ if (NULL != peers[i].warmup_ch)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u: warmup channel %p\n",
+ i, peers[i].warmup_ch);
+ GNUNET_MESH_channel_destroy (peers[i].warmup_ch);
+ }
if (NULL != peers[i].incoming_ch)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u: incoming channel %p\n",
return;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Start collecting statistics...\n");
- stats_op = GNUNET_TESTBED_get_statistics (TOTAL_PEERS, testbed_handles,
+ stats_op = GNUNET_TESTBED_get_statistics (peers_total, testbed_handles,
NULL, NULL,
stats_iterator, stats_cont, NULL);
}
unsigned int i;
unsigned int r;
- GNUNET_assert (target <= TOTAL_PEERS);
+ GNUNET_assert (target <= peers_total);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "adjust peers to %u\n", target);
if (target > peers_running)
{
do {
r = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
- TOTAL_PEERS - PING_PEERS);
- r += PING_PEERS;
+ peers_total - peers_pinging);
+ r += peers_pinging;
} while (peers[r].up == run || NULL != peers[r].incoming);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "St%s peer %u: %s\n",
run ? "arting" : "opping", r, GNUNET_i2s (&peers[r].id));
GNUNET_SCHEDULER_add_now (&finish_profiler, NULL);
return;
}
- adjust_running_peers (rounds[current_round] * TOTAL_PEERS);
+ adjust_running_peers (rounds[current_round] * peers_total);
current_round++;
- GNUNET_SCHEDULER_add_delayed (ROUND_TIME, &next_rnd, NULL);
+ GNUNET_SCHEDULER_add_delayed (round_time, &next_rnd, NULL);
}
struct MeshPingMessage *msg;
struct GNUNET_TIME_Absolute send_time;
struct GNUNET_TIME_Relative latency;
- unsigned int ping_round;
+ unsigned int r /* Ping round */;
+ float delta;
GNUNET_MESH_receive_done (channel);
peer = &peers[n];
send_time = GNUNET_TIME_absolute_ntoh (msg->timestamp);
latency = GNUNET_TIME_absolute_get_duration (send_time);
- ping_round = ntohl (msg->round_number);
+ r = ntohl (msg->round_number);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u <- %u (%u) latency: %s\n",
get_index (peer), get_index (peer->dest), ntohl (msg->counter),
GNUNET_STRINGS_relative_time_to_string (latency, GNUNET_NO));
- peer->sum_delay[ping_round] += latency.rel_value_us;
- peer->pongs[ping_round]++;
+
+ /* Online variance calculation */
+ peer->pongs[r]++;
+ delta = latency.rel_value_us - peer->mean[r];
+ peer->mean[r] = peer->mean[r] + delta/peer->pongs[r];
+ peer->var[r] += delta * (latency.rel_value_us - peer->mean[r]);
return GNUNET_OK;
}
peer = GNUNET_CONTAINER_multipeermap_get (ids, initiator);
GNUNET_assert (NULL != peer);
+ if (NULL == peers[n].incoming)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, "WARMUP %3u: %u <= %u\n",
+ peers_warmup, n, get_index (peer));
+ peers_warmup++;
+ if (peers_warmup < peers_total)
+ return NULL;
+ test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
+ &start_test, NULL);
+ return NULL;
+ }
GNUNET_assert (peer == peers[n].incoming);
GNUNET_assert (peer->dest == &peers[n]);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u <= %u %p\n",
}
+/**
+ * Select a random peer that has no incoming channel
+ *
+ * @param peer ID of the peer connecting. NULL if irrelevant (warmup).
+ *
+ * @return Random peer not yet connected to.
+ */
static struct MeshPeer *
select_random_peer (struct MeshPeer *peer)
{
do
{
- r = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, TOTAL_PEERS);
+ r = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, peers_total);
} while (NULL != peers[r].incoming);
peers[r].incoming = peer;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Start profiler\n");
flags = GNUNET_MESH_OPTION_DEFAULT;
- for (i = 0; i < PING_PEERS; i++)
+ for (i = 0; i < peers_pinging; i++)
{
-
peers[i].dest = select_random_peer (&peers[i]);
peers[i].ch = GNUNET_MESH_channel_create (peers[i].mesh, NULL,
&peers[i].dest->id,
if (NULL == peers[i].ch)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Channel %lu failed\n", i);
- GNUNET_SCHEDULER_shutdown ();
+ GNUNET_MESH_TEST_cleanup (test_ctx);
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "%u => %u %p\n",
peers[i].ping_task = GNUNET_SCHEDULER_add_delayed (delay_ms_rnd (2000),
&ping, &peers[i]);
}
- peers_running = TOTAL_PEERS;
+ peers_running = peers_total;
if (GNUNET_SCHEDULER_NO_TASK != disconnect_task)
GNUNET_SCHEDULER_cancel (disconnect_task);
disconnect_task =
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(ROUND_TIME,
+ GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(round_time,
number_rounds + 1),
&disconnect_mesh_peers,
(void *) __LINE__);
- GNUNET_SCHEDULER_add_delayed (ROUND_TIME, &next_rnd, NULL);
+ GNUNET_SCHEDULER_add_delayed (round_time, &next_rnd, NULL);
}
+/**
+ * Do warmup: create some channels to spread information about the topology.
+ */
+static void
+warmup (void)
+{
+ struct MeshPeer *peer;
+ unsigned int i;
+
+ for (i = 0; i < peers_total; i++)
+ {
+ peer = select_random_peer (NULL);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO, "WARMUP %u => %u\n",
+ i, get_index (peer));
+ peers[i].warmup_ch =
+ GNUNET_MESH_channel_create (peers[i].mesh, NULL, &peer->id,
+ 1, GNUNET_MESH_OPTION_DEFAULT);
+ if (NULL == peers[i].warmup_ch)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Warmup %u failed\n", i);
+ GNUNET_MESH_TEST_cleanup (test_ctx);
+ return;
+ }
+ }
+}
+
/**
* Callback to be called when the requested peer information is available
*
peers[n].op = NULL;
p_ids++;
- if (p_ids < TOTAL_PEERS)
+ if (p_ids < peers_total)
return;
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Got all IDs, starting profiler\n");
+ if (do_warmup)
+ {
+ warmup();
+ return; /* start_test from incoming_channel */
+ }
test_task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_SECONDS,
&start_test, NULL);
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "test main\n");
test_ctx = ctx;
- GNUNET_assert (TOTAL_PEERS > 2 * PING_PEERS);
- GNUNET_assert (TOTAL_PEERS == num_peers);
+ GNUNET_assert (peers_total == num_peers);
peers_running = num_peers;
testbed_handles = testbed_peers;
disconnect_task = GNUNET_SCHEDULER_add_delayed (SHORT_TIME,
(void *) __LINE__);
shutdown_handle = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
&shutdown_task, NULL);
- for (i = 0; i < TOTAL_PEERS; i++)
+ for (i = 0; i < peers_total; i++)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "requesting id %ld\n", i);
peers[i].up = GNUNET_YES;
static uint32_t ports[2];
const char *config_file;
- config_file = "profiler.conf";
+ config_file = ".profiler.conf";
+
+ if (4 > argc)
+ {
+ fprintf (stderr, "usage: %s ROUND_TIME PEERS PINGS [DO_WARMUP]\n", argv[0]);
+ fprintf (stderr, "example: %s 30s 16 1 Y\n", argv[0]);
+ return 1;
+ }
+
+ if (GNUNET_OK != GNUNET_STRINGS_fancy_time_to_relative (argv[1], &round_time))
+ {
+ fprintf (stderr, "%s is not a valid time\n", argv[1]);
+ return 1;
+ }
+
+ peers_total = atoll (argv[2]);
+ if (2 > peers_total)
+ {
+ fprintf (stderr, "%s peers is not valid (> 2)\n", argv[1]);
+ return 1;
+ }
+ peers = GNUNET_malloc (sizeof (struct MeshPeer) * peers_total);
+
+ peers_pinging = atoll (argv[3]);
+
+ if (peers_total < 2 * peers_pinging)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "not enough peers, total should be > 2 * peers_pinging\n");
+ return 1;
+ }
+
+ do_warmup = (5 > argc || argv[4][0] == 'N');
- ids = GNUNET_CONTAINER_multipeermap_create (2 * TOTAL_PEERS, GNUNET_YES);
+ ids = GNUNET_CONTAINER_multipeermap_create (2 * peers_total, GNUNET_YES);
GNUNET_assert (NULL != ids);
p_ids = 0;
test_finished = GNUNET_NO;
ports[0] = 1;
ports[1] = 0;
- GNUNET_MESH_TEST_run ("mesh-profiler", config_file, TOTAL_PEERS,
+ GNUNET_MESH_TEST_run ("mesh-profiler", config_file, peers_total,
&tmain, NULL, /* tmain cls */
&incoming_channel, &channel_cleaner,
handlers, ports);
+ GNUNET_free (peers);
return 0;
}
projects / oweals / gnunet.git / blobdiff