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65cde3621d
They are not related to the txdb, so a better place for them is the new kernel and node cache file. Re-use the default amount of kernel cache for the default node cache.
36 lines
1.5 KiB
C++
36 lines
1.5 KiB
C++
// Copyright (c) 2021-2022 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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#include <node/caches.h>
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#include <common/args.h>
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#include <index/txindex.h>
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#include <kernel/caches.h>
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#include <algorithm>
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#include <string>
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// Unlike for the UTXO database, for the txindex scenario the leveldb cache make
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// a meaningful difference: https://github.com/bitcoin/bitcoin/pull/8273#issuecomment-229601991
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//! Max memory allocated to tx index DB specific cache in MiB.
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static constexpr int64_t MAX_TX_INDEX_CACHE{1024};
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//! Max memory allocated to all block filter index caches combined in MiB.
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static constexpr int64_t MAX_FILTER_INDEX_CACHE{1024};
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namespace node {
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CacheSizes CalculateCacheSizes(const ArgsManager& args, size_t n_indexes)
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{
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int64_t nTotalCache = (args.GetIntArg("-dbcache", DEFAULT_DB_CACHE) << 20);
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nTotalCache = std::max(nTotalCache, MIN_DB_CACHE << 20);
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IndexCacheSizes sizes;
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sizes.tx_index = std::min(nTotalCache / 8, args.GetBoolArg("-txindex", DEFAULT_TXINDEX) ? MAX_TX_INDEX_CACHE << 20 : 0);
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nTotalCache -= sizes.tx_index;
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if (n_indexes > 0) {
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int64_t max_cache = std::min(nTotalCache / 8, MAX_FILTER_INDEX_CACHE << 20);
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sizes.filter_index = max_cache / n_indexes;
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nTotalCache -= sizes.filter_index * n_indexes;
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}
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return {sizes, kernel::CacheSizes{static_cast<size_t>(nTotalCache)}};
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}
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} // namespace node
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