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node/caches: Extract cache calculation logic

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I strongly recommend reviewing with the following git-diff flags:
  --color-moved=dimmed_zebra --color-moved-ws=allow-indentation-change

[META] In a future commit, this function will be re-used in TestingSetup
       so that the behaviour matches across test and non-test init
       codepaths.
This commit is contained in:
Carl Dong
2021-09-21 11:37:03 -04:00
parent 15f2e33bb3
commit ac4bf138b8
4 changed files with 75 additions and 28 deletions
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41
src/init.cpp
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@@ -34,6 +34,7 @@
#include <net_processing.h>
#include <netbase.h>
#include <node/blockstorage.h>
#include <node/caches.h> // for CalculateCacheSizes
#include <node/chainstate.h> // for LoadChainstate
#include <node/context.h>
#include <node/miner.h>
@@ -1381,36 +1382,20 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
bool fReindexChainState = args.GetBoolArg("-reindex-chainstate", false);
// cache size calculations
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 (!g_enabled_filter_types.empty()) {
size_t n_indexes = g_enabled_filter_types.size();
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
CacheSizes cache_sizes = CalculateCacheSizes(args, g_enabled_filter_types.size());
int64_t nMempoolSizeMax = args.GetIntArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
LogPrintf("Cache configuration:\n");
LogPrintf("* Using %.1f MiB for block index database\n", nBlockTreeDBCache * (1.0 / 1024 / 1024));
LogPrintf("* Using %.1f MiB for block index database\n", cache_sizes.block_tree_db * (1.0 / 1024 / 1024));
if (args.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
LogPrintf("* Using %.1f MiB for transaction index database\n", nTxIndexCache * (1.0 / 1024 / 1024));
LogPrintf("* Using %.1f MiB for transaction index database\n", cache_sizes.tx_index * (1.0 / 1024 / 1024));
}
for (BlockFilterType filter_type : g_enabled_filter_types) {
LogPrintf("* Using %.1f MiB for %s block filter index database\n",
filter_index_cache * (1.0 / 1024 / 1024), BlockFilterTypeName(filter_type));
cache_sizes.filter_index * (1.0 / 1024 / 1024), BlockFilterTypeName(filter_type));
}
LogPrintf("* Using %.1f MiB for chain state database\n", nCoinDBCache * (1.0 / 1024 / 1024));
LogPrintf("* Using %.1f MiB for in-memory UTXO set (plus up to %.1f MiB of unused mempool space)\n", nCoinCacheUsage * (1.0 / 1024 / 1024), nMempoolSizeMax * (1.0 / 1024 / 1024));
LogPrintf("* Using %.1f MiB for chain state database\n", cache_sizes.coins_db * (1.0 / 1024 / 1024));
LogPrintf("* Using %.1f MiB for in-memory UTXO set (plus up to %.1f MiB of unused mempool space)\n", cache_sizes.coins * (1.0 / 1024 / 1024), nMempoolSizeMax * (1.0 / 1024 / 1024));
bool fLoaded = false;
while (!fLoaded && !ShutdownRequested()) {
@@ -1427,9 +1412,9 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
fPruneMode,
chainparams.GetConsensus(),
fReindexChainState,
nBlockTreeDBCache,
nCoinDBCache,
nCoinCacheUsage,
cache_sizes.block_tree_db,
cache_sizes.coins_db,
cache_sizes.coins,
ShutdownRequested,
[]() {
uiInterface.ThreadSafeMessageBox(
@@ -1548,14 +1533,14 @@ bool AppInitMain(NodeContext& node, interfaces::BlockAndHeaderTipInfo* tip_info)
return InitError(*error);
}
g_txindex = std::make_unique<TxIndex>(nTxIndexCache, false, fReindex);
g_txindex = std::make_unique<TxIndex>(cache_sizes.tx_index, false, fReindex);
if (!g_txindex->Start(chainman.ActiveChainstate())) {
return false;
}
}
for (const auto& filter_type : g_enabled_filter_types) {
InitBlockFilterIndex(filter_type, filter_index_cache, false, fReindex);
InitBlockFilterIndex(filter_type, cache_sizes.filter_index, false, fReindex);
if (!GetBlockFilterIndex(filter_type)->Start(chainman.ActiveChainstate())) {
return false;
}