core: optimise pending transaction processing
This commit is contained in:
obscuren
parent
df323cdb4e
commit
3c6c891680
@ -21,7 +21,7 @@ var (
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ErrInvalidSender = errors.New("Invalid sender")
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ErrNonce = errors.New("Nonce too low")
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ErrBalance = errors.New("Insufficient balance")
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ErrNonExistentAccount = errors.New("Account does not exist")
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ErrNonExistentAccount = errors.New("Account does not exist or account balance too low")
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ErrInsufficientFunds = errors.New("Insufficient funds for gas * price + value")
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ErrIntrinsicGas = errors.New("Intrinsic gas too low")
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ErrGasLimit = errors.New("Exceeds block gas limit")
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186
miner/worker.go
186
miner/worker.go
@ -22,12 +22,18 @@ import (
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var jsonlogger = logger.NewJsonLogger()
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type environment struct {
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totalUsedGas *big.Int
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state *state.StateDB
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coinbase *state.StateObject
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block *types.Block
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family *set.Set
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uncles *set.Set
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totalUsedGas *big.Int
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state *state.StateDB
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coinbase *state.StateObject
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block *types.Block
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family *set.Set
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uncles *set.Set
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remove *set.Set
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tcount int
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ignoredTransactors *set.Set
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lowGasTransactors *set.Set
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ownedAccounts *set.Set
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lowGasTxs types.Transactions
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}
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func env(block *types.Block, eth core.Backend) *environment {
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@ -129,12 +135,13 @@ func (self *worker) start() {
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self.mu.Lock()
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defer self.mu.Unlock()
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atomic.StoreInt32(&self.mining, 1)
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// spin up agents
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for _, agent := range self.agents {
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agent.Start()
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}
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atomic.StoreInt32(&self.mining, 1)
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}
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func (self *worker) stop() {
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@ -175,8 +182,11 @@ out:
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self.possibleUncles[ev.Block.Hash()] = ev.Block
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self.uncleMu.Unlock()
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case core.TxPreEvent:
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// Apply transaction to the pending state if we're not mining
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if atomic.LoadInt32(&self.mining) == 0 {
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self.commitNewWork()
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self.mu.Lock()
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self.commitTransactions(types.Transactions{ev.Tx})
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self.mu.Unlock()
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}
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}
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case <-self.quit:
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@ -242,13 +252,22 @@ func (self *worker) makeCurrent() {
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}
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block.Header().Extra = self.extra
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self.current = env(block, self.eth)
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current := env(block, self.eth)
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for _, ancestor := range self.chain.GetAncestors(block, 7) {
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self.current.family.Add(ancestor.Hash())
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current.family.Add(ancestor.Hash())
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}
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accounts, _ := self.eth.AccountManager().Accounts()
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// Keep track of transactions which return errors so they can be removed
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current.remove = set.New()
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current.tcount = 0
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current.ignoredTransactors = set.New()
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current.lowGasTransactors = set.New()
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current.ownedAccounts = accountAddressesSet(accounts)
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parent := self.chain.GetBlock(self.current.block.ParentHash())
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self.current.coinbase.SetGasPool(core.CalcGasLimit(parent))
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parent := self.chain.GetBlock(current.block.ParentHash())
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current.coinbase.SetGasPool(core.CalcGasLimit(parent))
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self.current = current
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}
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func (w *worker) setGasPrice(p *big.Int) {
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@ -271,82 +290,14 @@ func (self *worker) commitNewWork() {
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defer self.currentMu.Unlock()
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self.makeCurrent()
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current := self.current
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transactions := self.eth.TxPool().GetTransactions()
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sort.Sort(types.TxByNonce{transactions})
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accounts, _ := self.eth.AccountManager().Accounts()
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// Keep track of transactions which return errors so they can be removed
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var (
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remove = set.New()
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tcount = 0
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ignoredTransactors = set.New()
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lowGasTransactors = set.New()
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ownedAccounts = accountAddressesSet(accounts)
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lowGasTxs types.Transactions
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)
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for _, tx := range transactions {
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// We can skip err. It has already been validated in the tx pool
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from, _ := tx.From()
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// check if it falls within margin
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if tx.GasPrice().Cmp(self.gasPrice) < 0 {
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// ignore the transaction and transactor. We ignore the transactor
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// because nonce will fail after ignoring this transaction so there's
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// no point
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lowGasTransactors.Add(from)
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glog.V(logger.Info).Infof("transaction(%x) below gas price (tx=%v ask=%v). All sequential txs from this address(%x) will be ignored\n", tx.Hash().Bytes()[:4], common.CurrencyToString(tx.GasPrice()), common.CurrencyToString(self.gasPrice), from[:4])
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}
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// Continue with the next transaction if the transaction sender is included in
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// the low gas tx set. This will also remove the tx and all sequential transaction
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// from this transactor
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if lowGasTransactors.Has(from) {
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// add tx to the low gas set. This will be removed at the end of the run
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// owned accounts are ignored
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if !ownedAccounts.Has(from) {
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lowGasTxs = append(lowGasTxs, tx)
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}
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continue
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}
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// Move on to the next transaction when the transactor is in ignored transactions set
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// This may occur when a transaction hits the gas limit. When a gas limit is hit and
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// the transaction is processed (that could potentially be included in the block) it
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// will throw a nonce error because the previous transaction hasn't been processed.
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// Therefor we need to ignore any transaction after the ignored one.
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if ignoredTransactors.Has(from) {
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continue
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}
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self.current.state.StartRecord(tx.Hash(), common.Hash{}, 0)
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err := self.commitTransaction(tx)
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switch {
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case core.IsNonceErr(err) || core.IsInvalidTxErr(err):
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// Remove invalid transactions
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from, _ := tx.From()
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self.chain.TxState().RemoveNonce(from, tx.Nonce())
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remove.Add(tx.Hash())
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if glog.V(logger.Detail) {
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glog.Infof("TX (%x) failed, will be removed: %v\n", tx.Hash().Bytes()[:4], err)
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}
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case state.IsGasLimitErr(err):
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from, _ := tx.From()
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// ignore the transactor so no nonce errors will be thrown for this account
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// next time the worker is run, they'll be picked up again.
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ignoredTransactors.Add(from)
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glog.V(logger.Detail).Infof("Gas limit reached for (%x) in this block. Continue to try smaller txs\n", from[:4])
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default:
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tcount++
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}
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}
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self.eth.TxPool().RemoveTransactions(lowGasTxs)
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// commit transactions for this run
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self.commitTransactions(transactions)
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self.eth.TxPool().RemoveTransactions(current.lowGasTxs)
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var (
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uncles []*types.Header
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@ -372,7 +323,7 @@ func (self *worker) commitNewWork() {
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// We only care about logging if we're actually mining
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if atomic.LoadInt32(&self.mining) == 1 {
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glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles\n", self.current.block.Number(), tcount, len(uncles))
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glog.V(logger.Info).Infof("commit new work on block %v with %d txs & %d uncles\n", current.block.Number(), current.tcount, len(uncles))
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}
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for _, hash := range badUncles {
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@ -412,6 +363,71 @@ func (self *worker) commitUncle(uncle *types.Header) error {
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return nil
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}
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func (self *worker) commitTransactions(transactions types.Transactions) {
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current := self.current
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for _, tx := range transactions {
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// We can skip err. It has already been validated in the tx pool
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from, _ := tx.From()
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// check if it falls within margin
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if tx.GasPrice().Cmp(self.gasPrice) < 0 {
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// ignore the transaction and transactor. We ignore the transactor
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// because nonce will fail after ignoring this transaction so there's
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// no point
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current.lowGasTransactors.Add(from)
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glog.V(logger.Info).Infof("transaction(%x) below gas price (tx=%v ask=%v). All sequential txs from this address(%x) will be ignored\n", tx.Hash().Bytes()[:4], common.CurrencyToString(tx.GasPrice()), common.CurrencyToString(self.gasPrice), from[:4])
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}
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// Continue with the next transaction if the transaction sender is included in
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// the low gas tx set. This will also remove the tx and all sequential transaction
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// from this transactor
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if current.lowGasTransactors.Has(from) {
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// add tx to the low gas set. This will be removed at the end of the run
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// owned accounts are ignored
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if !current.ownedAccounts.Has(from) {
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current.lowGasTxs = append(current.lowGasTxs, tx)
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}
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continue
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}
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// Move on to the next transaction when the transactor is in ignored transactions set
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// This may occur when a transaction hits the gas limit. When a gas limit is hit and
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// the transaction is processed (that could potentially be included in the block) it
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// will throw a nonce error because the previous transaction hasn't been processed.
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// Therefor we need to ignore any transaction after the ignored one.
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if current.ignoredTransactors.Has(from) {
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continue
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}
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self.current.state.StartRecord(tx.Hash(), common.Hash{}, 0)
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err := self.commitTransaction(tx)
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switch {
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case core.IsNonceErr(err) || core.IsInvalidTxErr(err):
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// Remove invalid transactions
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from, _ := tx.From()
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self.chain.TxState().RemoveNonce(from, tx.Nonce())
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current.remove.Add(tx.Hash())
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if glog.V(logger.Detail) {
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glog.Infof("TX (%x) failed, will be removed: %v\n", tx.Hash().Bytes()[:4], err)
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}
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case state.IsGasLimitErr(err):
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from, _ := tx.From()
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// ignore the transactor so no nonce errors will be thrown for this account
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// next time the worker is run, they'll be picked up again.
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current.ignoredTransactors.Add(from)
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glog.V(logger.Detail).Infof("Gas limit reached for (%x) in this block. Continue to try smaller txs\n", from[:4])
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default:
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current.tcount++
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}
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}
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}
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func (self *worker) commitTransaction(tx *types.Transaction) error {
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snap := self.current.state.Copy()
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receipt, _, err := self.proc.ApplyTransaction(self.current.coinbase, self.current.state, self.current.block, tx, self.current.totalUsedGas, true)
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