From 84f7ab08d2e8e83a584d72fdf44f68b34baf8165 Mon Sep 17 00:00:00 2001 From: Alex Morcos Date: Fri, 11 Nov 2016 11:57:51 -0500 Subject: [PATCH] Remove member variable hadNoDependencies from CTxMemPoolEntry Fee estimation can just check its own mapMemPoolTxs to determine the same information. Note that now fee estimation for block processing must happen before those transactions are removed, but this shoudl be a speedup. --- src/bench/mempool_eviction.cpp | 2 +- src/policy/fees.cpp | 21 ++++++++------------- src/test/mempool_tests.cpp | 2 -- src/test/test_bitcoin.cpp | 5 ++--- src/test/test_bitcoin.h | 4 +--- src/txmempool.cpp | 8 ++++---- src/txmempool.h | 4 +--- src/validation.cpp | 3 +-- src/wallet/wallet.cpp | 2 +- 9 files changed, 19 insertions(+), 32 deletions(-) diff --git a/src/bench/mempool_eviction.cpp b/src/bench/mempool_eviction.cpp index d04c03684..5790d51a8 100644 --- a/src/bench/mempool_eviction.cpp +++ b/src/bench/mempool_eviction.cpp @@ -18,7 +18,7 @@ static void AddTx(const CTransaction& tx, const CAmount& nFee, CTxMemPool& pool) unsigned int sigOpCost = 4; LockPoints lp; pool.addUnchecked(tx.GetHash(), CTxMemPoolEntry( - MakeTransactionRef(tx), nFee, nTime, dPriority, nHeight, pool.HasNoInputsOf(tx), + MakeTransactionRef(tx), nFee, nTime, dPriority, nHeight, tx.GetValueOut(), spendsCoinbase, sigOpCost, lp)); } diff --git a/src/policy/fees.cpp b/src/policy/fees.cpp index 52d0e5c5e..ac2d7edae 100644 --- a/src/policy/fees.cpp +++ b/src/policy/fees.cpp @@ -327,13 +327,6 @@ void CBlockPolicyEstimator::processTransaction(const CTxMemPoolEntry& entry, boo if (!fCurrentEstimate) return; - if (!entry.WasClearAtEntry()) { - // This transaction depends on other transactions in the mempool to - // be included in a block before it will be able to be included, so - // we shouldn't include it in our calculations - return; - } - // Feerates are stored and reported as BTC-per-kb: CFeeRate feeRate(entry.GetFee(), entry.GetTxSize()); @@ -343,10 +336,8 @@ void CBlockPolicyEstimator::processTransaction(const CTxMemPoolEntry& entry, boo void CBlockPolicyEstimator::processBlockTx(unsigned int nBlockHeight, const CTxMemPoolEntry& entry) { - if (!entry.WasClearAtEntry()) { - // This transaction depended on other transactions in the mempool to - // be included in a block before it was able to be included, so - // we shouldn't include it in our calculations + if (!removeTx(entry.GetTx().GetHash())) { + // This transaction wasn't being tracked for fee estimation return; } @@ -378,14 +369,18 @@ void CBlockPolicyEstimator::processBlock(unsigned int nBlockHeight, // transaction fees." return; } - nBestSeenHeight = nBlockHeight; // Only want to be updating estimates when our blockchain is synced, // otherwise we'll miscalculate how many blocks its taking to get included. if (!fCurrentEstimate) return; - // Clear the current block state + // Must update nBestSeenHeight in sync with ClearCurrent so that + // calls to removeTx (via processBlockTx) correctly calculate age + // of unconfirmed txs to remove from tracking. + nBestSeenHeight = nBlockHeight; + + // Clear the current block state and update unconfirmed circular buffer feeStats.ClearCurrent(nBlockHeight); // Repopulate the current block states diff --git a/src/test/mempool_tests.cpp b/src/test/mempool_tests.cpp index 37f0de354..91f549fe4 100644 --- a/src/test/mempool_tests.cpp +++ b/src/test/mempool_tests.cpp @@ -120,7 +120,6 @@ BOOST_AUTO_TEST_CASE(MempoolIndexingTest) { CTxMemPool pool(CFeeRate(0)); TestMemPoolEntryHelper entry; - entry.hadNoDependencies = true; /* 3rd highest fee */ CMutableTransaction tx1 = CMutableTransaction(); @@ -323,7 +322,6 @@ BOOST_AUTO_TEST_CASE(MempoolAncestorIndexingTest) { CTxMemPool pool(CFeeRate(0)); TestMemPoolEntryHelper entry; - entry.hadNoDependencies = true; /* 3rd highest fee */ CMutableTransaction tx1 = CMutableTransaction(); diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp index 672cd1142..f0eaab221 100644 --- a/src/test/test_bitcoin.cpp +++ b/src/test/test_bitcoin.cpp @@ -147,12 +147,11 @@ CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CMutableTransaction &tx, CT } CTxMemPoolEntry TestMemPoolEntryHelper::FromTx(const CTransaction &txn, CTxMemPool *pool) { - bool hasNoDependencies = pool ? pool->HasNoInputsOf(txn) : hadNoDependencies; // Hack to assume either its completely dependent on other mempool txs or not at all - CAmount inChainValue = hasNoDependencies ? txn.GetValueOut() : 0; + CAmount inChainValue = pool && pool->HasNoInputsOf(txn) ? txn.GetValueOut() : 0; return CTxMemPoolEntry(MakeTransactionRef(txn), nFee, nTime, dPriority, nHeight, - hasNoDependencies, inChainValue, spendsCoinbase, sigOpCost, lp); + inChainValue, spendsCoinbase, sigOpCost, lp); } void Shutdown(void* parg) diff --git a/src/test/test_bitcoin.h b/src/test/test_bitcoin.h index 0fe77437e..5ef6fa764 100644 --- a/src/test/test_bitcoin.h +++ b/src/test/test_bitcoin.h @@ -70,14 +70,13 @@ struct TestMemPoolEntryHelper int64_t nTime; double dPriority; unsigned int nHeight; - bool hadNoDependencies; bool spendsCoinbase; unsigned int sigOpCost; LockPoints lp; TestMemPoolEntryHelper() : nFee(0), nTime(0), dPriority(0.0), nHeight(1), - hadNoDependencies(false), spendsCoinbase(false), sigOpCost(4) { } + spendsCoinbase(false), sigOpCost(4) { } CTxMemPoolEntry FromTx(const CMutableTransaction &tx, CTxMemPool *pool = NULL); CTxMemPoolEntry FromTx(const CTransaction &tx, CTxMemPool *pool = NULL); @@ -87,7 +86,6 @@ struct TestMemPoolEntryHelper TestMemPoolEntryHelper &Time(int64_t _time) { nTime = _time; return *this; } TestMemPoolEntryHelper &Priority(double _priority) { dPriority = _priority; return *this; } TestMemPoolEntryHelper &Height(unsigned int _height) { nHeight = _height; return *this; } - TestMemPoolEntryHelper &HadNoDependencies(bool _hnd) { hadNoDependencies = _hnd; return *this; } TestMemPoolEntryHelper &SpendsCoinbase(bool _flag) { spendsCoinbase = _flag; return *this; } TestMemPoolEntryHelper &SigOpsCost(unsigned int _sigopsCost) { sigOpCost = _sigopsCost; return *this; } }; diff --git a/src/txmempool.cpp b/src/txmempool.cpp index 4ccbcadef..57300bb51 100644 --- a/src/txmempool.cpp +++ b/src/txmempool.cpp @@ -22,10 +22,10 @@ using namespace std; CTxMemPoolEntry::CTxMemPoolEntry(const CTransactionRef& _tx, const CAmount& _nFee, int64_t _nTime, double _entryPriority, unsigned int _entryHeight, - bool poolHasNoInputsOf, CAmount _inChainInputValue, + CAmount _inChainInputValue, bool _spendsCoinbase, int64_t _sigOpsCost, LockPoints lp): tx(_tx), nFee(_nFee), nTime(_nTime), entryPriority(_entryPriority), entryHeight(_entryHeight), - hadNoDependencies(poolHasNoInputsOf), inChainInputValue(_inChainInputValue), + inChainInputValue(_inChainInputValue), spendsCoinbase(_spendsCoinbase), sigOpCost(_sigOpsCost), lockPoints(lp) { nTxWeight = GetTransactionWeight(*tx); @@ -604,6 +604,8 @@ void CTxMemPool::removeForBlock(const std::vector& vtx, unsigne if (i != mapTx.end()) entries.push_back(*i); } + // Before the txs in the new block have been removed from the mempool, update policy estimates + minerPolicyEstimator->processBlock(nBlockHeight, entries, fCurrentEstimate); for (const auto& tx : vtx) { txiter it = mapTx.find(tx->GetHash()); @@ -615,8 +617,6 @@ void CTxMemPool::removeForBlock(const std::vector& vtx, unsigne removeConflicts(*tx); ClearPrioritisation(tx->GetHash()); } - // After the txs in the new block have been removed from the mempool, update policy estimates - minerPolicyEstimator->processBlock(nBlockHeight, entries, fCurrentEstimate); lastRollingFeeUpdate = GetTime(); blockSinceLastRollingFeeBump = true; } diff --git a/src/txmempool.h b/src/txmempool.h index 7c68053f2..5c8cf7af1 100644 --- a/src/txmempool.h +++ b/src/txmempool.h @@ -88,7 +88,6 @@ private: int64_t nTime; //!< Local time when entering the mempool double entryPriority; //!< Priority when entering the mempool unsigned int entryHeight; //!< Chain height when entering the mempool - bool hadNoDependencies; //!< Not dependent on any other txs when it entered the mempool CAmount inChainInputValue; //!< Sum of all txin values that are already in blockchain bool spendsCoinbase; //!< keep track of transactions that spend a coinbase int64_t sigOpCost; //!< Total sigop cost @@ -113,7 +112,7 @@ private: public: CTxMemPoolEntry(const CTransactionRef& _tx, const CAmount& _nFee, int64_t _nTime, double _entryPriority, unsigned int _entryHeight, - bool poolHasNoInputsOf, CAmount _inChainInputValue, bool spendsCoinbase, + CAmount _inChainInputValue, bool spendsCoinbase, int64_t nSigOpsCost, LockPoints lp); CTxMemPoolEntry(const CTxMemPoolEntry& other); @@ -130,7 +129,6 @@ public: size_t GetTxWeight() const { return nTxWeight; } int64_t GetTime() const { return nTime; } unsigned int GetHeight() const { return entryHeight; } - bool WasClearAtEntry() const { return hadNoDependencies; } int64_t GetSigOpCost() const { return sigOpCost; } int64_t GetModifiedFee() const { return nFee + feeDelta; } size_t DynamicMemoryUsage() const { return nUsageSize; } diff --git a/src/validation.cpp b/src/validation.cpp index 2783a313f..a68763e48 100644 --- a/src/validation.cpp +++ b/src/validation.cpp @@ -693,7 +693,6 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C } CTxMemPoolEntry entry(ptx, nFees, nAcceptTime, dPriority, chainActive.Height(), - !IsInitialBlockDownload() && pool.HasNoInputsOf(tx), inChainInputValue, fSpendsCoinbase, nSigOpsCost, lp); unsigned int nSize = entry.GetTxSize(); @@ -943,7 +942,7 @@ bool AcceptToMemoryPoolWorker(CTxMemPool& pool, CValidationState& state, const C pool.RemoveStaged(allConflicting, false); // Store transaction in memory - pool.addUnchecked(hash, entry, setAncestors, !IsInitialBlockDownload()); + pool.addUnchecked(hash, entry, setAncestors, !IsInitialBlockDownload() && pool.HasNoInputsOf(tx)); // trim mempool and check if tx was trimmed if (!fOverrideMempoolLimit) { diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp index 967683256..0b13c2ba7 100644 --- a/src/wallet/wallet.cpp +++ b/src/wallet/wallet.cpp @@ -2563,7 +2563,7 @@ bool CWallet::CreateTransaction(const vector& vecSend, CWalletTx& wt if (GetBoolArg("-walletrejectlongchains", DEFAULT_WALLET_REJECT_LONG_CHAINS)) { // Lastly, ensure this tx will pass the mempool's chain limits LockPoints lp; - CTxMemPoolEntry entry(wtxNew.tx, 0, 0, 0, 0, false, 0, false, 0, lp); + CTxMemPoolEntry entry(wtxNew.tx, 0, 0, 0, 0, 0, false, 0, lp); CTxMemPool::setEntries setAncestors; size_t nLimitAncestors = GetArg("-limitancestorcount", DEFAULT_ANCESTOR_LIMIT); size_t nLimitAncestorSize = GetArg("-limitancestorsize", DEFAULT_ANCESTOR_SIZE_LIMIT)*1000;