added parameter for claim db cache size

src/claimtrie.cpp

@@ -124,10 +124,10 @@ void CClaimTrieData::reorderClaims(const supportEntryType& supports)
     std::sort(claims.rbegin(), claims.rend());
 }
 
-CClaimTrie::CClaimTrie(bool fMemory, bool fWipe, int proportionalDelayFactor)
+CClaimTrie::CClaimTrie(bool fMemory, bool fWipe, int proportionalDelayFactor, std::size_t cacheMB)
 {
     nProportionalDelayFactor = proportionalDelayFactor;
-    db.reset(new CDBWrapper(GetDataDir() / "claimtrie", 400 * 1024 * 1024, fMemory, fWipe, false));
+    db.reset(new CDBWrapper(GetDataDir() / "claimtrie", cacheMB * 1024ULL * 1024ULL, fMemory, fWipe, false));
 }
 
 bool CClaimTrie::SyncToDisk()

src/claimtrie.h

@@ -330,7 +330,7 @@ public:
     virtual ~CClaimTrie() = default;
     CClaimTrie(CClaimTrie&&) = delete;
     CClaimTrie(const CClaimTrie&) = delete;
-    CClaimTrie(bool fMemory, bool fWipe, int proportionalDelayFactor = 32);
+    CClaimTrie(bool fMemory, bool fWipe, int proportionalDelayFactor = 32, std::size_t cacheMB=200);
 
     CClaimTrie& operator=(CClaimTrie&&) = delete;
     CClaimTrie& operator=(const CClaimTrie&) = delete;

src/core_write.cpp

@@ -7,7 +7,6 @@
 #include <consensus/consensus.h>
 #include <consensus/validation.h>
 #include <key_io.h>
-#include <nameclaim.h>
 #include <script/script.h>
 #include <script/standard.h>
 #include <serialize.h>

src/init.cpp

@@ -368,6 +368,7 @@ void SetupServerArgs()
     gArgs.AddArg("-version", "Print version and exit", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #if HAVE_SYSTEM
     gArgs.AddArg("-alertnotify=<cmd>", "Execute command when a relevant alert is received or we see a really long fork (%s in cmd is replaced by message)", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
+    gArgs.AddArg("-claimtriecache=<n>", strprintf("Set claim trie cache size in megabytes (%d to %d, default: %d)", nMinDbCache, nMaxDbCache, nDefaultDbCache), false, OptionsCategory::OPTIONS);
 #endif
     gArgs.AddArg("-assumevalid=<hex>", strprintf("If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: %s, testnet: %s)", defaultChainParams->GetConsensus().defaultAssumeValid.GetHex(), testnetChainParams->GetConsensus().defaultAssumeValid.GetHex()), ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     gArgs.AddArg("-blocksdir=<dir>", "Specify directory to hold blocks subdirectory for *.dat files (default: <datadir>)", ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
@@ -1490,7 +1491,10 @@ bool AppInitMain(InitInterfaces& interfaces)
                 pblocktree.reset();
                 pblocktree.reset(new CBlockTreeDB(nBlockTreeDBCache, false, fReset));
                 delete pclaimTrie;
-                pclaimTrie = new CClaimTrieHashFork(false, fReindex || fReindexChainState);
+                int64_t trieCacheMB = gArgs.GetArg("-claimtriecache", nDefaultDbCache);
+                trieCacheMB = std::min(trieCacheMB, nMaxDbCache);
+                trieCacheMB = std::max(trieCacheMB, nMinDbCache);
+                pclaimTrie = new CClaimTrieHashFork(false, fReindex || fReindexChainState, 32, trieCacheMB);
 
                 if (fReset) {
                     pblocktree->WriteReindexing(true);

src/txdb.h

@@ -26,7 +26,7 @@ struct CDiskTxPos;
 //! No need to periodic flush if at least this much space still available.
 static constexpr int MAX_BLOCK_COINSDB_USAGE = 10;
 //! -dbcache default (MiB)
-static const int64_t nDefaultDbCache = sizeof(void*) > 4 ? 700 : 450;
+static const int64_t nDefaultDbCache = 500;
 //! -dbbatchsize default (bytes)
 static const int64_t nDefaultDbBatchSize = 16 << 20;
 //! max. -dbcache (MiB)
@@ -34,7 +34,7 @@ static const int64_t nMaxDbCache = sizeof(void*) > 4 ? 16384 : 1024;
 //! min. -dbcache (MiB)
 static const int64_t nMinDbCache = 4;
 //! Max memory allocated to block tree DB specific cache, if no -txindex (MiB)
-static const int64_t nMaxBlockDBCache = 8;
+static const int64_t nMaxBlockDBCache = 4;
 //! Max memory allocated to block tree DB specific cache, if -txindex (MiB)
 // Unlike for the UTXO database, for the txindex scenario the leveldb cache make
 // a meaningful difference: https://github.com/bitcoin/bitcoin/pull/8273#issuecomment-229601991