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authorSree Harsha Totakura <totakura@in.tum.de>2013-02-15 14:30:47 +0000
committerSree Harsha Totakura <totakura@in.tum.de>2013-02-15 14:30:47 +0000
commitcb023645f02e119debf6124da07b90554b8542aa (patch)
tree5e99f30c62b0b8add10ca33f8b439e52a444a2ea /contrib
parentdc91d1f488ce8aa6f0eacf29da582080b1355031 (diff)
Hacks to reduce per-peer load on CPU by increasing transport retransmission
timeouts. This helps to keep the load on testbed node low. Thanks Bart!
Diffstat (limited to 'contrib')
-rw-r--r--contrib/testbed_perfhacks.patch90
1 files changed, 90 insertions, 0 deletions
diff --git a/contrib/testbed_perfhacks.patch b/contrib/testbed_perfhacks.patch
new file mode 100644
index 000000000..1ad524a30
--- /dev/null
+++ b/contrib/testbed_perfhacks.patch
@@ -0,0 +1,90 @@
+Index: src/include/gnunet_constants.h
+===================================================================
+--- src/include/gnunet_constants.h (revision 26030)
++++ src/include/gnunet_constants.h (working copy)
+@@ -49,7 +49,7 @@
+ * After how long do we consider a connection to a peer dead
+ * if we don't receive messages from the peer?
+ */
+-#define GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
++#define GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 5)
+
+ /**
+ * How long do we delay reading more from a peer after a quota violation?
+@@ -61,7 +61,7 @@
+ * even if we assume that the service commonly does not
+ * respond instantly (DNS, Database, etc.).
+ */
+-#define GNUNET_CONSTANTS_SERVICE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 10)
++#define GNUNET_CONSTANTS_SERVICE_TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 10)
+
+ /**
+ * How long do we delay messages to get larger packet sizes (CORKing)?
+Index: src/transport/gnunet-service-transport_neighbours.c
+===================================================================
+--- src/transport/gnunet-service-transport_neighbours.c (revision 26030)
++++ src/transport/gnunet-service-transport_neighbours.c (working copy)
+@@ -65,7 +65,7 @@
+ * send 3 keepalives in each interval, so 3 messages would need to be
+ * lost in a row for a disconnect).
+ */
+-#define KEEPALIVE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 100)
++#define KEEPALIVE_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 100)
+
+ /**
+ * How long are we willing to wait for a response from ATS before timing out?
+Index: src/transport/gnunet-service-transport_validation.c
+===================================================================
+--- src/transport/gnunet-service-transport_validation.c (revision 26030)
++++ src/transport/gnunet-service-transport_validation.c (working copy)
+@@ -43,7 +43,7 @@
+ * OTOH, we don't want to spend too much time generating PONG signatures,
+ * so they must have some lifetime to reduce our CPU usage.
+ */
+-#define PONG_SIGNATURE_LIFETIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 1)
++#define PONG_SIGNATURE_LIFETIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 12)
+
+ /**
+ * After how long do we expire an address in a HELLO that we just
+@@ -58,24 +58,24 @@
+ * we cannot validate (because after this time we can destroy the
+ * validation record).
+ */
+-#define UNVALIDATED_PING_KEEPALIVE GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 5)
++#define UNVALIDATED_PING_KEEPALIVE GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4)
+
+ /**
+ * How often do we PING an address that we have successfully validated
+ * in the past but are not actively using? Should be (significantly)
+ * smaller than HELLO_ADDRESS_EXPIRATION.
+ */
+-#define VALIDATED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 15)
++#define VALIDATED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
+
+ /**
+ * How often do we PING an address that we are currently using?
+ */
+-#define CONNECTED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 2)
++#define CONNECTED_PING_FREQUENCY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 2)
+
+ /**
+ * How much delay is acceptable for sending the PING or PONG?
+ */
+-#define ACCEPTABLE_PING_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 1)
++#define ACCEPTABLE_PING_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1)
+
+ /**
+ * Size of the validation map hashmap.
+@@ -745,9 +745,9 @@
+ void
+ GST_validation_start (unsigned int max_fds)
+ {
+- validation_next = GNUNET_TIME_absolute_get();
+- validation_delay.rel_value = (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value) / max_fds;
+- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Delay between validations: %u ms\n ", validation_delay.rel_value);
++ validation_next = GNUNET_TIME_absolute_get();
++ validation_delay.rel_value = GNUNET_TIME_UNIT_MILLISECONDS.rel_value;
++ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Delay between validations: %u ms\n ", validation_delay.rel_value);
+ validation_map = GNUNET_CONTAINER_multihashmap_create (VALIDATION_MAP_SIZE,
+ GNUNET_NO);
+ pnc = GNUNET_PEERINFO_notify (GST_cfg, &process_peerinfo_hello, NULL);