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wallet2: speed up get_output_relatedness

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Crypto City 2023-01-09 11:23:07 +00:00 committed by moneromooo-monero
parent d752464fbb
commit fee4f9a076
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1 changed files with 11 additions and 15 deletions
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26
src/wallet/wallet2.cpp
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@ -6338,29 +6338,25 @@ namespace
// their ordering, but it could become more murky if we add scores later. // their ordering, but it could become more murky if we add scores later.
float wallet2::get_output_relatedness(const transfer_details &td0, const transfer_details &td1) const float wallet2::get_output_relatedness(const transfer_details &td0, const transfer_details &td1) const
{ {
int dh; const int64_t dh = td0.m_block_height > td1.m_block_height ? td0.m_block_height - td1.m_block_height : td1.m_block_height - td0.m_block_height;
// expensive test, and same tx will fall onto the same block height below // don't think these are particularly related
if (td0.m_txid == td1.m_txid) if (dh >= 10)
return 1.0f; return 0.0f;
// same block height -> possibly tx burst, or same tx (since above is disabled) // similar block heights
dh = td0.m_block_height > td1.m_block_height ? td0.m_block_height - td1.m_block_height : td1.m_block_height - td0.m_block_height; if (dh > 1)
if (dh == 0) return 0.2f;
return 0.9f;
// adjacent blocks -> possibly tx burst // adjacent blocks -> possibly tx burst
if (dh == 1) if (dh == 1)
return 0.8f; return 0.8f;
// could extract the payment id, and compare them, but this is a bit expensive too // expensive test, and same tx will fall onto the same block height below
if (td0.m_txid == td1.m_txid)
return 1.0f;
// similar block heights return 0.9f;
if (dh < 10)
return 0.2f;
// don't think these are particularly related
return 0.0f;
} }
//---------------------------------------------------------------------------------------------------- //----------------------------------------------------------------------------------------------------
size_t wallet2::pop_best_value_from(const transfer_container &transfers, std::vector<size_t> &unused_indices, const std::vector<size_t>& selected_transfers, bool smallest) const size_t wallet2::pop_best_value_from(const transfer_container &transfers, std::vector<size_t> &unused_indices, const std::vector<size_t>& selected_transfers, bool smallest) const