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Fix tx inv throughput (#2300)

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Bumps 4x per 1MB due to 4x smaller block times and accounts for blocks >1MB as in https://reviews.bitcoinabc.org/rABC4ae37d54ba3db21609ef8b704ed7f4377b9cece7
This commit is contained in:
UdjinM6 2018-09-19 15:04:03 +03:00 committed by GitHub
parent 0471fa8847
commit 31759a44d6
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2 changed files with 5 additions and 4 deletions
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4
src/net_processing.cpp
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@ -3318,7 +3318,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
std::vector<CInv> vInv;
{
LOCK(pto->cs_inventory);
vInv.reserve(std::max<size_t>(pto->vInventoryBlockToSend.size(), INVENTORY_BROADCAST_MAX));
vInv.reserve(std::max<size_t>(pto->vInventoryBlockToSend.size(), INVENTORY_BROADCAST_MAX_PER_1MB_BLOCK * MaxBlockSize(true) / 1000000));
// Add blocks
BOOST_FOREACH(const uint256& hash, pto->vInventoryBlockToSend) {
@ -3387,7 +3387,7 @@ bool SendMessages(CNode* pto, CConnman& connman, const std::atomic<bool>& interr
// especially since we have many peers and some will draw much shorter delays.
unsigned int nRelayedTransactions = 0;
LOCK(pto->cs_filter);
while (!vInvTx.empty() && nRelayedTransactions < INVENTORY_BROADCAST_MAX) {
while (!vInvTx.empty() && nRelayedTransactions < INVENTORY_BROADCAST_MAX_PER_1MB_BLOCK * MaxBlockSize(true) / 1000000) {
// Fetch the top element from the heap
std::pop_heap(vInvTx.begin(), vInvTx.end(), compareInvMempoolOrder);
std::set<uint256>::iterator it = vInvTx.back();

5
src/validation.h
View File

@ -115,8 +115,9 @@ static const unsigned int AVG_ADDRESS_BROADCAST_INTERVAL = 30;
* Blocks and whitelisted receivers bypass this, outbound peers get half this delay. */
static const unsigned int INVENTORY_BROADCAST_INTERVAL = 5;
/** Maximum number of inventory items to send per transmission.
* Limits the impact of low-fee transaction floods. */
static const unsigned int INVENTORY_BROADCAST_MAX = 7 * INVENTORY_BROADCAST_INTERVAL;
* Limits the impact of low-fee transaction floods.
* We have 4 times smaller block times in Dash, so we need to push 4 times more invs per 1MB. */
static const unsigned int INVENTORY_BROADCAST_MAX_PER_1MB_BLOCK = 4 * 7 * INVENTORY_BROADCAST_INTERVAL;
/** Block download timeout base, expressed in millionths of the block interval (i.e. 2.5 min) */
static const int64_t BLOCK_DOWNLOAD_TIMEOUT_BASE = 1000000;
/** Additional block download timeout per parallel downloading peer (i.e. 1.25 min) */