mirror of
https://github.com/bitcoin/bitcoin.git
synced 2025-03-14 03:47:28 +01:00
39 lines
1.6 KiB
C++
39 lines
1.6 KiB
C++
|
// Copyright (c) 2021 The Bitcoin Core developers
|
||
|
// Distributed under the MIT software license, see the accompanying
|
||
|
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
|
||
|
|
||
|
#include <node/caches.h>
|
||
|
|
||
|
#include <txdb.h>
|
||
|
#include <util/system.h>
|
||
|
#include <validation.h>
|
||
|
|
||
|
CacheSizes CalculateCacheSizes(const ArgsManager& args, size_t n_indexes)
|
||
|
{
|
||
|
int64_t nTotalCache = (args.GetIntArg("-dbcache", nDefaultDbCache) << 20);
|
||
|
nTotalCache = std::max(nTotalCache, nMinDbCache << 20); // total cache cannot be less than nMinDbCache
|
||
|
nTotalCache = std::min(nTotalCache, nMaxDbCache << 20); // total cache cannot be greater than nMaxDbcache
|
||
|
int64_t nBlockTreeDBCache = std::min(nTotalCache / 8, nMaxBlockDBCache << 20);
|
||
|
nTotalCache -= nBlockTreeDBCache;
|
||
|
int64_t nTxIndexCache = std::min(nTotalCache / 8, args.GetBoolArg("-txindex", DEFAULT_TXINDEX) ? nMaxTxIndexCache << 20 : 0);
|
||
|
nTotalCache -= nTxIndexCache;
|
||
|
int64_t filter_index_cache = 0;
|
||
|
if (n_indexes > 0) {
|
||
|
int64_t max_cache = std::min(nTotalCache / 8, max_filter_index_cache << 20);
|
||
|
filter_index_cache = max_cache / n_indexes;
|
||
|
nTotalCache -= filter_index_cache * n_indexes;
|
||
|
}
|
||
|
int64_t nCoinDBCache = std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23)); // use 25%-50% of the remainder for disk cache
|
||
|
nCoinDBCache = std::min(nCoinDBCache, nMaxCoinsDBCache << 20); // cap total coins db cache
|
||
|
nTotalCache -= nCoinDBCache;
|
||
|
int64_t nCoinCacheUsage = nTotalCache; // the rest goes to in-memory cache
|
||
|
|
||
|
return {
|
||
|
nBlockTreeDBCache,
|
||
|
nCoinDBCache,
|
||
|
nCoinCacheUsage,
|
||
|
nTxIndexCache,
|
||
|
filter_index_cache,
|
||
|
};
|
||
|
}
|