diff options
| author | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2018-03-22 17:51:58 +0000 |
|---|---|---|
| committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2018-04-23 10:54:28 +0100 |
| commit | ffeeefde609822bca8a05ac6919ca0de2fc3fcc0 (patch) | |
| tree | a12d90343a88a77de9292b2b4005b913bf41d2d1 /src/blockchain_db/lmdb/db_lmdb.cpp | |
| parent | wallet2: add missing parameters to get_output_histogram (diff) | |
| download | monero-ffeeefde609822bca8a05ac6919ca0de2fc3fcc0.tar.xz | |
speedup get_output_histogram for all amounts when min_count > 0
This skips the vast majority of "dust" output amounts with just
one instance on the chain. Clocks in at 0.15% of the original
time on testnet.
Diffstat (limited to 'src/blockchain_db/lmdb/db_lmdb.cpp')
| -rw-r--r-- | src/blockchain_db/lmdb/db_lmdb.cpp | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/src/blockchain_db/lmdb/db_lmdb.cpp b/src/blockchain_db/lmdb/db_lmdb.cpp index 9a755fb0c..5672a34f6 100644 --- a/src/blockchain_db/lmdb/db_lmdb.cpp +++ b/src/blockchain_db/lmdb/db_lmdb.cpp @@ -3086,7 +3086,7 @@ void BlockchainLMDB::get_output_tx_and_index(const uint64_t& amount, const std:: LOG_PRINT_L3("db3: " << db3); } -std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> BlockchainLMDB::get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff) const +std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> BlockchainLMDB::get_output_histogram(const std::vector<uint64_t> &amounts, bool unlocked, uint64_t recent_cutoff, uint64_t min_count) const { LOG_PRINT_L3("BlockchainLMDB::" << __func__); check_open(); @@ -3112,7 +3112,8 @@ std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> BlockchainLMDB::get mdb_size_t num_elems = 0; mdb_cursor_count(m_cur_output_amounts, &num_elems); uint64_t amount = *(const uint64_t*)k.mv_data; - histogram[amount] = std::make_tuple(num_elems, 0, 0); + if (num_elems >= min_count) + histogram[amount] = std::make_tuple(num_elems, 0, 0); } } else @@ -3123,13 +3124,15 @@ std::map<uint64_t, std::tuple<uint64_t, uint64_t, uint64_t>> BlockchainLMDB::get int ret = mdb_cursor_get(m_cur_output_amounts, &k, &v, MDB_SET); if (ret == MDB_NOTFOUND) { - histogram[amount] = std::make_tuple(0, 0, 0); + if (0 >= min_count) + histogram[amount] = std::make_tuple(0, 0, 0); } else if (ret == MDB_SUCCESS) { mdb_size_t num_elems = 0; mdb_cursor_count(m_cur_output_amounts, &num_elems); - histogram[amount] = std::make_tuple(num_elems, 0, 0); + if (num_elems >= min_count) + histogram[amount] = std::make_tuple(num_elems, 0, 0); } else { |