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p2p: Increase tx relay rate 

In the presence of smaller transactions on the network, blocks can sustain a
higher relay rate than 7tx/second. In this event, the per-peer inventory queues
can grow too large.

This commit bumps the rate up to 14 tx/s (for inbound peers), increasing the
safety margin by a factor of 2.

Outbound peers continue to receive relayed transactions at 2.5x the rate of
inbound peers, for a rate of 35tx/second.

Co-Authored-By: Suhas Daftuar <sdaftuar@gmail.com>

Github-Pull: #28592
Rebased-From: b81f37031c
This commit is contained in:
Anthony Towns 2023-10-05 11:20:04 +10:00 committed by fanquake
parent 4b02bc1a72
commit 1bc3be1962
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GPG Key ID: 2EEB9F5CC09526C1
1 changed files with 1 additions and 1 deletions
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src/net_processing.cpp
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@ -167,7 +167,7 @@ static constexpr auto INBOUND_INVENTORY_BROADCAST_INTERVAL{5s};
static constexpr auto OUTBOUND_INVENTORY_BROADCAST_INTERVAL{2s};
/** Maximum rate of inventory items to send per second.
* Limits the impact of low-fee transaction floods. */
static constexpr unsigned int INVENTORY_BROADCAST_PER_SECOND = 7;
static constexpr unsigned int INVENTORY_BROADCAST_PER_SECOND{14};
/** Target number of tx inventory items to send per transmission. */
static constexpr unsigned int INVENTORY_BROADCAST_TARGET = INVENTORY_BROADCAST_PER_SECOND * count_seconds(INBOUND_INVENTORY_BROADCAST_INTERVAL);
/** Maximum number of inventory items to send per transmission. */