LCOV - code coverage report
Current view: top level - src/node - caches.cpp (source / functions) Hit Total Coverage
Test: fuzz_coverage.info Lines: 16 21 76.2 %
Date: 2023-10-05 12:38:51 Functions: 2 2 100.0 %
Branches: 6 12 50.0 %

           Branch data     Line data    Source code
       1                 :            : // Copyright (c) 2021-2022 The Bitcoin Core developers
       2                 :            : // Distributed under the MIT software license, see the accompanying
       3                 :            : // file COPYING or http://www.opensource.org/licenses/mit-license.php.
       4                 :            : 
       5                 :            : #include <node/caches.h>
       6                 :            : 
       7                 :            : #include <common/args.h>
       8                 :            : #include <index/txindex.h>
       9                 :            : #include <txdb.h>
      10                 :            : 
      11                 :            : namespace node {
      12                 :          1 : CacheSizes CalculateCacheSizes(const ArgsManager& args, size_t n_indexes)
      13                 :            : {
      14   [ +  -  +  - ]:          1 :     int64_t nTotalCache = (args.GetIntArg("-dbcache", nDefaultDbCache) << 20);
      15                 :          1 :     nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache
      16                 :          1 :     nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greater than nMaxDbcache
      17                 :            :     CacheSizes sizes;
      18                 :          1 :     sizes.block_tree_db = std::min(nTotalCache / 8, nMaxBlockDBCache << 20);
      19                 :          1 :     nTotalCache -= sizes.block_tree_db;
      20   [ -  +  +  -  :          1 :     sizes.tx_index = std::min(nTotalCache / 8, args.GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxTxIndexCache << 20 : 0);
                   +  - ]
      21                 :          1 :     nTotalCache -= sizes.tx_index;
      22                 :          1 :     sizes.filter_index = 0;
      23         [ +  - ]:          1 :     if (n_indexes > 0) {
      24                 :          0 :         int64_t max_cache = std::min(nTotalCache / 8, max_filter_index_cache << 20);
      25                 :          0 :         sizes.filter_index = max_cache / n_indexes;
      26                 :          0 :         nTotalCache -= sizes.filter_index * n_indexes;
      27                 :          0 :     }
      28                 :          1 :     sizes.coins_db = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache
      29                 :          1 :     sizes.coins_db = std::min(sizes.coins_db, nMaxCoinsDBCache << 20); // cap total coins db cache
      30                 :          1 :     nTotalCache -= sizes.coins_db;
      31                 :          1 :     sizes.coins = nTotalCache; // the rest goes to in-memory cache
      32                 :          1 :     return sizes;
      33                 :          0 : }
      34                 :            : } // namespace node

Generated by: LCOV version 1.14