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e758b26b85
Carrying non-kernel related fields in the cache sizes for the indexes is confusing for kernel library users. The cache sizes also are set currently with magic numbers in bitcoin-chainstate. The comments for the cache size calculations are also not completely clear. Solve these things by moving the kernel-specific cache size fields to their own struct. This slightly changes the way the cache is allocated if the txindex and/or blockfilterindex is used. Since they are now given precedence over the block tree db cache, this results in a bit less cache being allocated to the block tree db, coinsdb and coins caches. The effect is negligible though, i.e. cache sizes with default dbcache reported through the logs are: master: Cache configuration: * Using 2.0 MiB for block index database * Using 56.0 MiB for transaction index database * Using 49.0 MiB for basic block filter index database * Using 8.0 MiB for chain state database * Using 335.0 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space) this branch: Cache configuration: * Using 2.0 MiB for block index database * Using 56.2 MiB for transaction index database * Using 49.2 MiB for basic block filter index database * Using 8.0 MiB for chain state database * Using 334.5 MiB for in-memory UTXO set (plus up to 286.1 MiB of unused mempool space)
28 lines
650 B
C++
28 lines
650 B
C++
// Copyright (c) 2021 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_NODE_CACHES_H
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#define BITCOIN_NODE_CACHES_H
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#include <kernel/caches.h>
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#include <cstddef>
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#include <cstdint>
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class ArgsManager;
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namespace node {
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struct IndexCacheSizes {
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int64_t tx_index{0};
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int64_t filter_index{0};
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};
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struct CacheSizes {
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IndexCacheSizes index;
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kernel::CacheSizes kernel;
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};
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CacheSizes CalculateCacheSizes(const ArgsManager& args, size_t n_indexes = 0);
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} // namespace node
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#endif // BITCOIN_NODE_CACHES_H
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