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authorSupriti Singh <supritisingh08@gmail.com>2014-08-25 19:25:27 +0000
committerSupriti Singh <supritisingh08@gmail.com>2014-08-25 19:25:27 +0000
commitf2678662372b0a43a6045ce2edb6cfe8f600a370 (patch)
treeba87932574a9104f79a34307407b1eb97f5f0a9a /src
parent79fe43e09ece9b32e2a14d0af71cebc412945bf3 (diff)
- Adding r5n profiler.
- Changes in makefile for r5n profiler - Correctly adding the trail in add_trail - Passing correct trail id in PUT message routing lookup
Diffstat (limited to 'src')
-rw-r--r--src/dht/Makefile.am13
-rw-r--r--src/dht/gnunet-service-xdht_neighbours.c71
-rw-r--r--src/dht/gnunet_dht_profiler.c2
-rw-r--r--src/dht/gnunet_dht_r5n_profiler.c174
4 files changed, 190 insertions, 70 deletions
diff --git a/src/dht/Makefile.am b/src/dht/Makefile.am
index f8918616f..b9e7c5d67 100644
--- a/src/dht/Makefile.am
+++ b/src/dht/Makefile.am
@@ -56,7 +56,8 @@ noinst_PROGRAMS = \
gnunet-dht-monitor \
gnunet-dht-get \
gnunet-dht-put \
- gnunet-dht-profiler
+ gnunet-dht-profiler\
+ gnunet-dht-r5n-profiler
gnunet_service_dht_SOURCES = \
gnunet-service-dht.c gnunet-service-dht.h \
@@ -139,6 +140,16 @@ gnunet_dht_profiler_LDADD = \
gnunet_dht_profiler_DEPENDENCIES = \
libgnunetdht.la
+gnunet_dht_r5n_profiler_SOURCES = \
+ gnunet_dht_r5n_profiler.c
+gnunet_dht_r5n_profiler_LDADD = \
+ $(top_builddir)/src/dht/libgnunetdht.la \
+ $(top_builddir)/src/core/libgnunetcore.la \
+ $(top_builddir)/src/util/libgnunetutil.la \
+ $(top_builddir)/src/testbed/libgnunettestbed.la
+gnunet_dht_r5n_profiler_DEPENDENCIES = \
+ libgnunetdht.la
+
if HAVE_TESTING
noinst_LIBRARIES = libgnunetdhttest.a
endif
diff --git a/src/dht/gnunet-service-xdht_neighbours.c b/src/dht/gnunet-service-xdht_neighbours.c
index dde456037..3d17a07fa 100644
--- a/src/dht/gnunet-service-xdht_neighbours.c
+++ b/src/dht/gnunet-service-xdht_neighbours.c
@@ -845,6 +845,16 @@ struct Closest_Peer
unsigned int finger_table_index;
};
+/**
+ * Context for send_verify_successor_task.
+ */
+struct VerifySuccessorContext
+{
+ /**
+ * Number of times this has been scheduled.
+ */
+ unsigned int num_retries_scheduled;
+};
/**
* Task that sends FIND FINGER TRAIL requests. This task is started when we have
@@ -3160,10 +3170,6 @@ add_new_finger (struct GNUNET_PeerIdentity finger_identity,
return;
}
-struct VerifySuccessorContext
-{
- unsigned int num_retries_scheduled;
-};
/**
* Periodic task to verify current successor. There can be multiple trails to reach
@@ -3174,7 +3180,7 @@ struct VerifySuccessorContext
*/
static void
send_verify_successor_message (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+ const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct FriendInfo *target_friend;
struct GNUNET_HashCode trail_id;
@@ -3184,6 +3190,8 @@ send_verify_successor_message (void *cls,
unsigned int i = 0;
struct FingerInfo *successor;
+ successor = &finger_table[0];
+
/* This task will be scheduled when the result for Verify Successor is received. */
send_verify_successor_task = GNUNET_SCHEDULER_NO_TASK;
@@ -3194,13 +3202,29 @@ send_verify_successor_message (void *cls,
*/
if (NULL == cls)
{
+ /* FIXME: Here we are scheduling a new verify successor task, as we
+ got a new successor. But a send verify successor task may be in progress.
+ 1. We need to be sure that this is indeed a new successor. As this function
+ is called even if we add a new trail to reach t old successor.
+ 2. Assuming the new successor is different, then verify successor message
+ * to old successor may be following stages.
+ * --> Waiting for verify successor result. Don't wait anymore. there is
+ * no trail to reach from old successor to me, hence, routing
+ * lookup will fail.
+ * --> Waiting for notify confirmation. again don't wait for it. notify
+ * confirmation will not succeded.
+ */
if (send_verify_successor_retry_task != GNUNET_SCHEDULER_NO_TASK)
{
+ /* FIXME: Are we scheduling retry task as soon as we send verify message.
+ If yes then here before making this task, first check if the message
+ is for the same peer again. */
struct VerifySuccessorContext *old_ctx =
GNUNET_SCHEDULER_cancel(send_verify_successor_retry_task);
/* old_ctx must not be NULL, as the retry task had been scheduled */
GNUNET_assert(NULL != old_ctx);
GNUNET_free(old_ctx);
+ /* FIXME: Why don't we reset the task to NO_TASK here? */
}
struct VerifySuccessorContext *ctx;
@@ -3225,14 +3249,6 @@ send_verify_successor_message (void *cls,
ctx);
}
- successor = &finger_table[0];
- /* We are waiting for a confirmation from the notify message and we have not
- * crossed the wait time, then return. */
-// if ((1 == waiting_for_notify_confirmation)
-// && (0 != GNUNET_TIME_absolute_get_remaining(successor->wait_notify_confirmation).rel_value_us))
-// {
-// return;
-// }
/* Among all the trails to reach to successor, select first one which is present.*/
for (i = 0; i < successor->trails_count; i++)
{
@@ -3737,14 +3753,12 @@ handle_dht_p2p_put (void *cls, const struct GNUNET_PeerIdentity *peer,
if (0 != (GNUNET_CRYPTO_cmp_peer_identity (&current_best_known_dest, &my_identity)))
{
- next_routing_hop = GDS_ROUTING_get_next_hop (intermediate_trail_id,
+ next_routing_hop = GDS_ROUTING_get_next_hop (received_intermediate_trail_id,
GDS_ROUTING_SRC_TO_DEST);
if (NULL != next_routing_hop)
{
next_hop = next_routing_hop;
intermediate_trail_id = received_intermediate_trail_id;
- FPRINTF (stderr,_("\nSUPU %s, %s, %d,intermediate_trail_id=%s"),__FILE__, __func__,__LINE__,GNUNET_h2s(&intermediate_trail_id));
-
best_known_dest = current_best_known_dest;
}
}
@@ -3881,7 +3895,7 @@ handle_dht_p2p_get (void *cls, const struct GNUNET_PeerIdentity *peer,
if (0 != (GNUNET_CRYPTO_cmp_peer_identity (&current_best_known_dest, &my_identity)))
{
next_routing_hop = GDS_ROUTING_get_next_hop (received_intermediate_trail_id,
- GDS_ROUTING_SRC_TO_DEST);
+ GDS_ROUTING_SRC_TO_DEST);
if (NULL != next_routing_hop)
{
next_hop = next_routing_hop;
@@ -5333,22 +5347,8 @@ handle_dht_p2p_notify_new_successor(void *cls,
next_hop = new_successor;
else
next_hop = trail[my_index + 1];
- /* Add an entry in routing table for trail from source to its new successor. */
- /* TODO : Verify the logic below
- * Removed th following error check because GNUNET_SYSERR is returned when
- * route with trail_id was already in the routing table. This can happen, when
- * notify_successor was being retried. This should not be an error, and should
- * be ignored.
- */
- GDS_ROUTING_add(trail_id, *peer, next_hop);
-// if (GNUNET_SYSERR == GDS_ROUTING_add (trail_id, *peer, next_hop))
-// {
-//
-// GNUNET_break(0);
-// return GNUNET_OK;
-//
-// }
+ GDS_ROUTING_add(trail_id, *peer, next_hop);
target_friend =
GNUNET_CONTAINER_multipeermap_get (friend_peermap, &next_hop);
if (NULL == target_friend)
@@ -5731,10 +5731,6 @@ handle_dht_p2p_add_trail (void *cls, const struct GNUNET_PeerIdentity *peer,
source_peer = add_trail->source_peer;
trail_id = add_trail->trail_id;
- //FIXME: add a check that sender peer is not malicious. Make it a generic
- // function so that it can be used in all other functions where we need the
- // same functionality.
-
/* I am not the destination of the trail. */
if (0 != GNUNET_CRYPTO_cmp_peer_identity (&my_identity, &destination_peer))
{
@@ -5762,7 +5758,8 @@ handle_dht_p2p_add_trail (void *cls, const struct GNUNET_PeerIdentity *peer,
next_hop = trail[my_index + 1];
}
/* Add in your routing table. */
- GNUNET_assert (GNUNET_OK == GDS_ROUTING_add (trail_id, next_hop, *peer));
+ GNUNET_assert (GNUNET_OK == GDS_ROUTING_add (trail_id, *peer, next_hop));
+ //GNUNET_assert (GNUNET_OK == GDS_ROUTING_add (trail_id, next_hop, *peer));
GNUNET_assert (NULL !=
(target_friend =
GNUNET_CONTAINER_multipeermap_get (friend_peermap, &next_hop)));
diff --git a/src/dht/gnunet_dht_profiler.c b/src/dht/gnunet_dht_profiler.c
index 0dca21f2c..2e1447d35 100644
--- a/src/dht/gnunet_dht_profiler.c
+++ b/src/dht/gnunet_dht_profiler.c
@@ -577,7 +577,7 @@ get_iter (void *cls,
if (n_active == n_gets_fail + n_gets_ok)
{
average_put_path_length = (double)total_put_path_length/(double)n_active;
- average_get_path_length = (double)total_get_path_length/(double )n_active;
+ average_get_path_length = (double)total_get_path_length/(double )n_gets_ok;
summarize ();
}
}
diff --git a/src/dht/gnunet_dht_r5n_profiler.c b/src/dht/gnunet_dht_r5n_profiler.c
index 9921c0aed..95528b3f9 100644
--- a/src/dht/gnunet_dht_r5n_profiler.c
+++ b/src/dht/gnunet_dht_r5n_profiler.c
@@ -21,7 +21,7 @@
/**
* @file dht/gnunet_dht_profiler.c
* @brief Profiler for GNUnet DHT
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
*/
#include "platform.h"
@@ -38,7 +38,7 @@
/**
* Number of peers which should perform a PUT out of 100 peers
*/
-#define PUT_PROBABILITY 50
+#define PUT_PROBABILITY 100
/**
* Configuration
@@ -114,7 +114,7 @@ struct ActiveContext
struct GNUNET_DHT_GetHandle *dht_get;
/**
- * The hash of the @put_data
+ * The hash of the @e put_data
*/
struct GNUNET_HashCode hash;
@@ -124,7 +124,7 @@ struct ActiveContext
GNUNET_SCHEDULER_TaskIdentifier delay_task;
/**
- * The size of the put_data
+ * The size of the @e put_data
*/
uint16_t put_data_size;
@@ -200,8 +200,45 @@ static unsigned int n_gets_ok;
*/
static unsigned int n_gets_fail;
+/**
+ * Replication degree
+ */
+static unsigned int replication;
+
+/**
+ * Testbed Operation (to get stats).
+ */
+static struct GNUNET_TESTBED_Operation *stats_op;
+
+/**
+ * Testbed peer handles.
+ */
+static struct GNUNET_TESTBED_Peer **testbed_handles;
+
+/**
+ * Total number of messages sent by peer.
+ */
+static uint64_t outgoing_bandwidth;
+
+/**
+ * Total number of messages received by peer.
+ */
+static uint64_t incoming_bandwidth;
+
+/**
+ * Average number of hops taken to do put.
+ */
+static unsigned int average_put_path_length;
/**
+ * Average number of hops taken to do get.
+ */
+static unsigned int average_get_path_length;
+
+static unsigned int total_put_path_length;
+
+static unsigned int total_get_path_length;
+/**
* Shutdown task. Cleanup all resources and operations.
*
* @param cls NULL
@@ -212,14 +249,14 @@ do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
struct ActiveContext *ac;
unsigned int cnt;
-
+
if (NULL != a_ctx)
{
for (cnt=0; cnt < num_peers; cnt++)
{
if (NULL != a_ctx[cnt].op)
GNUNET_TESTBED_operation_done (a_ctx[cnt].op);
-
+
/* Cleanup active context if this peer is an active peer */
ac = a_ctx[cnt].ac;
if (NULL == ac)
@@ -236,10 +273,68 @@ do_shutdown (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
GNUNET_free (a_ctx);
a_ctx = NULL;
}
+ if(NULL != stats_op)
+ GNUNET_TESTBED_operation_done (stats_op);
+ stats_op = NULL;
GNUNET_free_non_null (a_ac);
}
+/**
+ * Stats callback. Finish the stats testbed operation and when all stats have
+ * been iterated, shutdown the test.
+ *
+ * @param cls closure
+ * @param op the operation that has been finished
+ * @param emsg error message in case the operation has failed; will be NULL if
+ * operation has executed successfully.
+ */
+static void
+bandwidth_stats_cont (void *cls,
+ struct GNUNET_TESTBED_Operation *op,
+ const char *emsg)
+{
+ INFO ("# Outgoing bandwidth: %u\n", outgoing_bandwidth);
+ INFO ("# Incoming bandwidth: %u\n", incoming_bandwidth);
+ GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Process statistic values.
+ *
+ * @param cls closure
+ * @param peer the peer the statistic belong to
+ * @param subsystem name of subsystem that created the statistic
+ * @param name the name of the datum
+ * @param value the current value
+ * @param is_persistent GNUNET_YES if the value is persistent, GNUNET_NO if not
+ * @return GNUNET_OK to continue, GNUNET_SYSERR to abort iteration
+ */
+static int
+bandwidth_stats_iterator (void *cls,
+ const struct GNUNET_TESTBED_Peer *peer,
+ const char *subsystem,
+ const char *name,
+ uint64_t value,
+ int is_persistent)
+{
+ static const char *s_sent = "# Bytes transmitted to other peers";
+ static const char *s_recv = "# Bytes received from other peers";
+
+ if (0 == strncmp (s_sent, name, strlen (s_sent)))
+ outgoing_bandwidth = outgoing_bandwidth + value;
+ else if (0 == strncmp(s_recv, name, strlen (s_recv)))
+ incoming_bandwidth = incoming_bandwidth + value;
+ else
+ return GNUNET_OK;
+ DEBUG ("Bandwith - Out: %lu; In: %lu\n",
+ (unsigned long) outgoing_bandwidth,
+ (unsigned long) incoming_bandwidth);
+ return GNUNET_OK;
+}
+
+
static void
summarize ()
{
@@ -249,7 +344,19 @@ summarize ()
INFO ("# GETS made: %u\n", n_gets);
INFO ("# GETS succeeded: %u\n", n_gets_ok);
INFO ("# GETS failed: %u\n", n_gets_fail);
- GNUNET_SCHEDULER_shutdown ();
+ INFO ("# average_put_path_length: %u\n", average_put_path_length);
+ INFO ("# average_get_path_length: %u\n", average_get_path_length);
+
+ if (NULL == testbed_handles)
+ {
+ INFO ("No peers found\n");
+ return;
+ }
+ /* Collect Stats*/
+ stats_op = GNUNET_TESTBED_get_statistics (n_active, testbed_handles,
+ "dht", NULL,
+ bandwidth_stats_iterator,
+ bandwidth_stats_cont, NULL);
}
@@ -271,8 +378,9 @@ cancel_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
n_gets_fail++;
/* If profiling is complete, summarize */
- if (n_gets == n_gets_fail + n_gets_ok)
+ if (n_active == n_gets_fail + n_gets_ok)
summarize ();
+
}
@@ -293,7 +401,7 @@ cancel_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
* @param size number of bytes in @a data
* @param data pointer to the result data
*/
-static void
+static void
get_iter (void *cls,
struct GNUNET_TIME_Absolute exp,
const struct GNUNET_HashCode *key,
@@ -306,18 +414,9 @@ get_iter (void *cls,
{
struct ActiveContext *ac = cls;
struct ActiveContext *get_ac = ac->get_ac;
-
- if (get_ac->put_data_size != size)
- {
- DEBUG ("Found a GET with incorrect data length (this may happen, but very unlikely)\n");
- return;
- }
- if (0 != memcmp (data, get_ac->put_data, size))
- {
- DEBUG ("Found a GET with incorrect data (this may happen, but very unlikely)\n");
- return;
- }
+ /* Check the keys of put and get match or not. */
+ GNUNET_assert (0 == memcmp (key, &get_ac->hash, sizeof (struct GNUNET_HashCode)));
/* we found the data we are looking for */
DEBUG ("We found a GET request; %u remaining\n", n_gets - (n_gets_fail + n_gets_ok));
n_gets_ok++;
@@ -326,10 +425,17 @@ get_iter (void *cls,
ac->dht_get = NULL;
GNUNET_SCHEDULER_cancel (ac->delay_task);
ac->delay_task = GNUNET_SCHEDULER_NO_TASK;
-
+
+ total_put_path_length = total_put_path_length + put_path_length;
+ total_get_path_length = total_get_path_length + get_path_length;
+
/* Summarize if profiling is complete */
- if (n_gets == n_gets_fail + n_gets_ok)
+ if (n_active == n_gets_fail + n_gets_ok)
+ {
+ average_put_path_length = total_put_path_length/n_active;
+ average_get_path_length = total_get_path_length/n_active;
summarize ();
+ }
}
@@ -357,9 +463,10 @@ delayed_get (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
}
get_ac->nrefs++;
ac->get_ac = get_ac;
+ DEBUG ("Doing a DHT GET for data of size %u\n", get_ac->put_data_size);
ac->dht_get = GNUNET_DHT_get_start (ac->dht,
GNUNET_BLOCK_TYPE_TEST,
- &ac->hash,
+ &get_ac->hash,
1, /* replication level */
GNUNET_DHT_RO_NONE,
NULL, 0, /* extended query and size */
@@ -413,12 +520,12 @@ delayed_put (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
ac->put_data_size += GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
(63*1024));
ac->put_data = GNUNET_malloc (ac->put_data_size);
- GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+ GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
ac->put_data, ac->put_data_size);
GNUNET_CRYPTO_hash (ac->put_data, ac->put_data_size, &ac->hash);
DEBUG ("Doing a DHT PUT with data of size %u\n", ac->put_data_size);
ac->dht_put = GNUNET_DHT_put (ac->dht, &ac->hash,
- 1, /* replication level */
+ replication,
GNUNET_DHT_RO_NONE,
GNUNET_BLOCK_TYPE_TEST,
ac->put_data_size,
@@ -487,7 +594,7 @@ dht_connect (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg)
* @param cls the active context
* @param op_result service handle returned from the connect adapter
*/
-static void
+static void
dht_disconnect (void *cls, void *op_result)
{
struct ActiveContext *ac = cls;
@@ -552,7 +659,8 @@ test_run (void *cls,
{
unsigned int cnt;
unsigned int ac_cnt;
-
+
+ testbed_handles = peers;
if (NULL == peers)
{
/* exit */
@@ -560,7 +668,7 @@ test_run (void *cls,
}
INFO ("%u peers started\n", num_peers);
a_ctx = GNUNET_malloc (sizeof (struct Context) * num_peers);
-
+
/* select the peers which actively participate in profiling */
n_active = num_peers * PUT_PROBABILITY / 100;
if (0 == n_active)
@@ -611,7 +719,7 @@ run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *config)
{
uint64_t event_mask;
-
+
if (0 == num_peers)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Exiting as the number of peers is %u\n"),
@@ -647,6 +755,9 @@ main (int argc, char *const *argv)
{'d', "delay", "DELAY",
gettext_noop ("delay for starting DHT PUT and GET"),
1, &GNUNET_GETOPT_set_relative_time, &delay},
+ {'r', "replication", "DEGREE",
+ gettext_noop ("replication degree for DHT PUTs"),
+ 1, &GNUNET_GETOPT_set_uint, &replication},
{'t', "timeout", "TIMEOUT",
gettext_noop ("timeout for DHT PUT and GET requests"),
1, &GNUNET_GETOPT_set_relative_time, &timeout},
@@ -655,8 +766,9 @@ main (int argc, char *const *argv)
if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
return 2;
- delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3); /* default delay */
- timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 3); /* default timeout */
+ delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 30); /* default delay */
+ timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1); /* default timeout */
+ replication = 1; /* default replication */
rc = 0;
if (GNUNET_OK !=
GNUNET_PROGRAM_run (argc, argv, "dht-profiler",