monero-project/monero
monero-project/monero
1
0
Fork 0
mirror of https://github.com/monero-project/monero.git synced 2024-11-18 00:37:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

core: speed up output index unique set calculation

Browse source 
A sort+uniq step was done for every tx in a 200 block chunk,
causing a lot of repeated scanning as the size of the offset
map got larger with every added tx. We now do the step only
once at the end of the loop.
Doing it this way potentially uses more memory, but testing
shows that it's currently only about 2% more.
This commit is contained in:
moneromooo-monero 2017-08-01 14:06:12 +01:00
parent 19d7f568ce
commit 5d4ef719b9
No known key found for this signature in database
GPG key ID: 686F07454D6CEFC3
1 changed files with 8 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/cryptonote_core/blockchain.cpp
View file

@ -3866,6 +3866,8 @@ bool Blockchain::prepare_handle_incoming_blocks(const std::list<block_complete_e
offset_map[in_to_key.amount].push_back(offset); offset_map[in_to_key.amount].push_back(offset);
} }
}
}
// sort and remove duplicate absolute_offsets in offset_map // sort and remove duplicate absolute_offsets in offset_map
for (auto &offsets : offset_map) for (auto &offsets : offset_map)
@ -3874,8 +3876,6 @@ bool Blockchain::prepare_handle_incoming_blocks(const std::list<block_complete_e
auto last = std::unique(offsets.second.begin(), offsets.second.end()); auto last = std::unique(offsets.second.begin(), offsets.second.end());
offsets.second.erase(last, offsets.second.end()); offsets.second.erase(last, offsets.second.end());
} }
}
}
// [output] stores all transactions for each tx_out_index::hash found // [output] stores all transactions for each tx_out_index::hash found
std::vector<std::unordered_map<crypto::hash, cryptonote::transaction>> transactions(amounts.size()); std::vector<std::unordered_map<crypto::hash, cryptonote::transaction>> transactions(amounts.size());