266 lines
7.8 KiB
Go
266 lines
7.8 KiB
Go
// Copyright 2021 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// This file contains a miner stress test for eip 1559.
|
|
package main
|
|
|
|
import (
|
|
"crypto/ecdsa"
|
|
crand "crypto/rand"
|
|
"math/big"
|
|
"math/rand"
|
|
"os"
|
|
"os/signal"
|
|
"time"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/common/fdlimit"
|
|
"github.com/ethereum/go-ethereum/consensus/ethash"
|
|
"github.com/ethereum/go-ethereum/core"
|
|
"github.com/ethereum/go-ethereum/core/txpool"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/crypto"
|
|
"github.com/ethereum/go-ethereum/eth"
|
|
"github.com/ethereum/go-ethereum/eth/downloader"
|
|
"github.com/ethereum/go-ethereum/eth/ethconfig"
|
|
"github.com/ethereum/go-ethereum/log"
|
|
"github.com/ethereum/go-ethereum/miner"
|
|
"github.com/ethereum/go-ethereum/node"
|
|
"github.com/ethereum/go-ethereum/p2p"
|
|
"github.com/ethereum/go-ethereum/p2p/enode"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
var (
|
|
londonBlock = big.NewInt(30) // Predefined london fork block for activating eip 1559.
|
|
)
|
|
|
|
func main() {
|
|
log.Root().SetHandler(log.LvlFilterHandler(log.LvlInfo, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
|
|
fdlimit.Raise(2048)
|
|
|
|
// Generate a batch of accounts to seal and fund with
|
|
faucets := make([]*ecdsa.PrivateKey, 128)
|
|
for i := 0; i < len(faucets); i++ {
|
|
faucets[i], _ = crypto.GenerateKey()
|
|
}
|
|
// Pre-generate the ethash mining DAG so we don't race
|
|
ethash.MakeDataset(1, ethconfig.Defaults.Ethash.DatasetDir)
|
|
|
|
// Create an Ethash network
|
|
genesis := makeGenesis(faucets)
|
|
|
|
// Handle interrupts.
|
|
interruptCh := make(chan os.Signal, 5)
|
|
signal.Notify(interruptCh, os.Interrupt)
|
|
|
|
var (
|
|
stacks []*node.Node
|
|
nodes []*eth.Ethereum
|
|
enodes []*enode.Node
|
|
)
|
|
for i := 0; i < 4; i++ {
|
|
// Start the node and wait until it's up
|
|
stack, ethBackend, err := makeMiner(genesis)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
defer stack.Close()
|
|
|
|
for stack.Server().NodeInfo().Ports.Listener == 0 {
|
|
time.Sleep(250 * time.Millisecond)
|
|
}
|
|
// Connect the node to all the previous ones
|
|
for _, n := range enodes {
|
|
stack.Server().AddPeer(n)
|
|
}
|
|
// Start tracking the node and its enode
|
|
nodes = append(nodes, ethBackend)
|
|
enodes = append(enodes, stack.Server().Self())
|
|
}
|
|
|
|
// Iterate over all the nodes and start mining
|
|
time.Sleep(3 * time.Second)
|
|
for _, node := range nodes {
|
|
if err := node.StartMining(1); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
time.Sleep(3 * time.Second)
|
|
|
|
// Start injecting transactions from the faucets like crazy
|
|
var (
|
|
nonces = make([]uint64, len(faucets))
|
|
|
|
// The signer activates the 1559 features even before the fork,
|
|
// so the new 1559 txs can be created with this signer.
|
|
signer = types.LatestSignerForChainID(genesis.Config.ChainID)
|
|
)
|
|
for {
|
|
// Stop when interrupted.
|
|
select {
|
|
case <-interruptCh:
|
|
for _, node := range stacks {
|
|
node.Close()
|
|
}
|
|
return
|
|
default:
|
|
}
|
|
|
|
// Pick a random mining node
|
|
index := rand.Intn(len(faucets))
|
|
backend := nodes[index%len(nodes)]
|
|
|
|
headHeader := backend.BlockChain().CurrentHeader()
|
|
baseFee := headHeader.BaseFee
|
|
|
|
// Create a self transaction and inject into the pool. The legacy
|
|
// and 1559 transactions can all be created by random even if the
|
|
// fork is not happened.
|
|
tx := makeTransaction(nonces[index], faucets[index], signer, baseFee)
|
|
if err := backend.TxPool().AddLocal(tx); err != nil {
|
|
continue
|
|
}
|
|
nonces[index]++
|
|
|
|
// Wait if we're too saturated
|
|
if pend, _ := backend.TxPool().Stats(); pend > 4192 {
|
|
time.Sleep(100 * time.Millisecond)
|
|
}
|
|
|
|
// Wait if the basefee is raised too fast
|
|
if baseFee != nil && baseFee.Cmp(new(big.Int).Mul(big.NewInt(100), big.NewInt(params.GWei))) > 0 {
|
|
time.Sleep(500 * time.Millisecond)
|
|
}
|
|
}
|
|
}
|
|
|
|
func makeTransaction(nonce uint64, privKey *ecdsa.PrivateKey, signer types.Signer, baseFee *big.Int) *types.Transaction {
|
|
// Generate legacy transaction
|
|
if rand.Intn(2) == 0 {
|
|
tx, err := types.SignTx(types.NewTransaction(nonce, crypto.PubkeyToAddress(privKey.PublicKey), new(big.Int), 21000, big.NewInt(100000000000+rand.Int63n(65536)), nil), signer, privKey)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
return tx
|
|
}
|
|
// Generate eip 1559 transaction
|
|
recipient := crypto.PubkeyToAddress(privKey.PublicKey)
|
|
|
|
// Feecap and feetip are limited to 32 bytes. Offer a sightly
|
|
// larger buffer for creating both valid and invalid transactions.
|
|
var buf = make([]byte, 32+5)
|
|
crand.Read(buf)
|
|
gasTipCap := new(big.Int).SetBytes(buf)
|
|
|
|
// If the given base fee is nil(the 1559 is still not available),
|
|
// generate a fake base fee in order to create 1559 tx forcibly.
|
|
if baseFee == nil {
|
|
baseFee = new(big.Int).SetInt64(int64(rand.Int31()))
|
|
}
|
|
// Generate the feecap, 75% valid feecap and 25% unguaranteed.
|
|
var gasFeeCap *big.Int
|
|
if rand.Intn(4) == 0 {
|
|
crand.Read(buf)
|
|
gasFeeCap = new(big.Int).SetBytes(buf)
|
|
} else {
|
|
gasFeeCap = new(big.Int).Add(baseFee, gasTipCap)
|
|
}
|
|
return types.MustSignNewTx(privKey, signer, &types.DynamicFeeTx{
|
|
ChainID: signer.ChainID(),
|
|
Nonce: nonce,
|
|
GasTipCap: gasTipCap,
|
|
GasFeeCap: gasFeeCap,
|
|
Gas: 21000,
|
|
To: &recipient,
|
|
Value: big.NewInt(100),
|
|
Data: nil,
|
|
AccessList: nil,
|
|
})
|
|
}
|
|
|
|
// makeGenesis creates a custom Ethash genesis block based on some pre-defined
|
|
// faucet accounts.
|
|
func makeGenesis(faucets []*ecdsa.PrivateKey) *core.Genesis {
|
|
genesis := core.DefaultGenesisBlock()
|
|
|
|
genesis.Config = params.AllEthashProtocolChanges
|
|
genesis.Config.LondonBlock = londonBlock
|
|
genesis.Difficulty = params.MinimumDifficulty
|
|
|
|
// Small gaslimit for easier basefee moving testing.
|
|
genesis.GasLimit = 8_000_000
|
|
|
|
genesis.Config.ChainID = big.NewInt(18)
|
|
genesis.Config.EIP150Hash = common.Hash{}
|
|
|
|
genesis.Alloc = core.GenesisAlloc{}
|
|
for _, faucet := range faucets {
|
|
genesis.Alloc[crypto.PubkeyToAddress(faucet.PublicKey)] = core.GenesisAccount{
|
|
Balance: new(big.Int).Exp(big.NewInt(2), big.NewInt(128), nil),
|
|
}
|
|
}
|
|
if londonBlock.Sign() == 0 {
|
|
log.Info("Enabled the eip 1559 by default")
|
|
} else {
|
|
log.Info("Registered the london fork", "number", londonBlock)
|
|
}
|
|
return genesis
|
|
}
|
|
|
|
func makeMiner(genesis *core.Genesis) (*node.Node, *eth.Ethereum, error) {
|
|
// Define the basic configurations for the Ethereum node
|
|
datadir, _ := os.MkdirTemp("", "")
|
|
|
|
config := &node.Config{
|
|
Name: "geth",
|
|
Version: params.Version,
|
|
DataDir: datadir,
|
|
P2P: p2p.Config{
|
|
ListenAddr: "0.0.0.0:0",
|
|
NoDiscovery: true,
|
|
MaxPeers: 25,
|
|
},
|
|
UseLightweightKDF: true,
|
|
}
|
|
// Create the node and configure a full Ethereum node on it
|
|
stack, err := node.New(config)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
ethBackend, err := eth.New(stack, ðconfig.Config{
|
|
Genesis: genesis,
|
|
NetworkId: genesis.Config.ChainID.Uint64(),
|
|
SyncMode: downloader.FullSync,
|
|
DatabaseCache: 256,
|
|
DatabaseHandles: 256,
|
|
TxPool: txpool.DefaultConfig,
|
|
GPO: ethconfig.Defaults.GPO,
|
|
Ethash: ethconfig.Defaults.Ethash,
|
|
Miner: miner.Config{
|
|
Etherbase: common.Address{1},
|
|
GasCeil: genesis.GasLimit * 11 / 10,
|
|
GasPrice: big.NewInt(1),
|
|
Recommit: time.Second,
|
|
},
|
|
})
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
err = stack.Start()
|
|
return stack, ethBackend, err
|
|
}
|