LCOV - code coverage report
Current view: top level - src/kernel - caches.h (source / functions) Coverage Total Hit
Test: total_coverage.info Lines: 100.0 % 8 8
Test Date: 2026-07-19 08:02:30 Functions: 100.0 % 1 1
Branches: 66.7 % 6 4

             Branch data     Line data    Source code
       1                 :             : // Copyright (c) 2024-present 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                 :             : #ifndef BITCOIN_KERNEL_CACHES_H
       6                 :             : #define BITCOIN_KERNEL_CACHES_H
       7                 :             : 
       8                 :             : #include <util/byte_units.h>
       9                 :             : 
      10                 :             : #include <algorithm>
      11                 :             : #include <cstdint>
      12                 :             : 
      13                 :             : //! Suggested default amount of cache reserved for the kernel (bytes)
      14                 :             : static constexpr uint64_t DEFAULT_KERNEL_CACHE{450_MiB};
      15                 :             : //! Default LevelDB write batch size
      16                 :             : static constexpr uint64_t DEFAULT_DB_CACHE_BATCH{32_MiB};
      17                 :             : 
      18                 :             : //! Max memory allocated to block tree DB specific cache (bytes)
      19                 :             : static constexpr uint64_t MAX_BLOCK_DB_CACHE{2_MiB};
      20                 :             : //! Max memory allocated to coin DB specific cache (bytes)
      21                 :             : static constexpr uint64_t MAX_COINS_DB_CACHE{8_MiB};
      22                 :             : 
      23                 :             : namespace kernel {
      24                 :             : struct CacheSizes {
      25                 :             :     uint64_t block_tree_db;
      26                 :             :     uint64_t coins_db;
      27                 :             :     uint64_t coins;
      28                 :             : 
      29                 :        1297 :     CacheSizes(uint64_t total_cache)
      30                 :        1297 :     {
      31         [ +  + ]:        1297 :         block_tree_db = std::min(total_cache / 8, MAX_BLOCK_DB_CACHE);
      32                 :        1297 :         total_cache -= block_tree_db;
      33         [ -  + ]:        1297 :         coins_db = std::min(total_cache / 2, MAX_COINS_DB_CACHE);
      34                 :        1297 :         total_cache -= coins_db;
      35         [ +  - ]:        1297 :         coins = total_cache; // the rest goes to the coins cache
      36                 :        1265 :     }
      37                 :             : };
      38                 :             : } // namespace kernel
      39                 :             : 
      40                 :             : #endif // BITCOIN_KERNEL_CACHES_H
        

Generated by: LCOV version 2.0-1