github.com/Gessiux/neatchain@v1.3.1/chain/core/bench_test.go

// Copyright 2015 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/>.

package core

import (
	"crypto/ecdsa"
	"math/big"

	"github.com/Gessiux/neatchain/chain/core/types"
	"github.com/Gessiux/neatchain/utilities/common"
	"github.com/Gessiux/neatchain/utilities/common/math"
	"github.com/Gessiux/neatchain/utilities/crypto"
)

//func BenchmarkInsertChain_empty_memdb(b *testing.B) {
//	benchInsertChain(b, false, nil)
//}
//func BenchmarkInsertChain_empty_diskdb(b *testing.B) {
//	benchInsertChain(b, true, nil)
//}
//func BenchmarkInsertChain_valueTx_memdb(b *testing.B) {
//	benchInsertChain(b, false, genValueTx(0))
//}
//func BenchmarkInsertChain_valueTx_diskdb(b *testing.B) {
//	benchInsertChain(b, true, genValueTx(0))
//}
//func BenchmarkInsertChain_valueTx_100kB_memdb(b *testing.B) {
//	benchInsertChain(b, false, genValueTx(100*1024))
//}
//func BenchmarkInsertChain_valueTx_100kB_diskdb(b *testing.B) {
//	benchInsertChain(b, true, genValueTx(100*1024))
//}
//func BenchmarkInsertChain_uncles_memdb(b *testing.B) {
//	benchInsertChain(b, false, genUncles)
//}
//func BenchmarkInsertChain_uncles_diskdb(b *testing.B) {
//	benchInsertChain(b, true, genUncles)
//}
//func BenchmarkInsertChain_ring200_memdb(b *testing.B) {
//	benchInsertChain(b, false, genTxRing(200))
//}
//func BenchmarkInsertChain_ring200_diskdb(b *testing.B) {
//	benchInsertChain(b, true, genTxRing(200))
//}
//func BenchmarkInsertChain_ring1000_memdb(b *testing.B) {
//	benchInsertChain(b, false, genTxRing(1000))
//}
//func BenchmarkInsertChain_ring1000_diskdb(b *testing.B) {
//	benchInsertChain(b, true, genTxRing(1000))
//}

var (
	// This is the content of the genesis block used by the benchmarks.
	benchRootKey, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
	benchRootAddr   = crypto.PubkeyToAddress(benchRootKey.PublicKey)
	benchRootFunds  = math.BigPow(2, 100)
)

// genValueTx returns a block generator that includes a single
// value-transfer transaction with n bytes of extra data in each
// block.
func genValueTx(nbytes int) func(int, *BlockGen) {
	return func(i int, gen *BlockGen) {
		toaddr := common.Address{}
		data := make([]byte, nbytes)
		gas, _ := IntrinsicGas(data, false, false)
		tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(benchRootAddr), toaddr, big.NewInt(1), gas, nil, data), types.HomesteadSigner{}, benchRootKey)
		gen.AddTx(tx)
	}
}

var (
	ringKeys  = make([]*ecdsa.PrivateKey, 1000)
	ringAddrs = make([]common.Address, len(ringKeys))
)

func init() {
	ringKeys[0] = benchRootKey
	ringAddrs[0] = benchRootAddr
	for i := 1; i < len(ringKeys); i++ {
		ringKeys[i], _ = crypto.GenerateKey()
		ringAddrs[i] = crypto.PubkeyToAddress(ringKeys[i].PublicKey)
	}
}

// genTxRing returns a block generator that sends ether in a ring
// among n accounts. This is creates n entries in the state database
// and fills the blocks with many small transactions.
//func genTxRing(naccounts int) func(int, *BlockGen) {
//	from := 0
//	return func(i int, gen *BlockGen) {
//		gas := CalcGasLimit(gen.PrevBlock(i - 1))
//		for {
//			gas -= params.TxGas
//			if gas < params.TxGas {
//				break
//			}
//			to := (from + 1) % naccounts
//			tx := types.NewTransaction(
//				gen.TxNonce(ringAddrs[from]),
//				ringAddrs[to],
//				benchRootFunds,
//				params.TxGas,
//				nil,
//				nil,
//			)
//			tx, _ = types.SignTx(tx, types.HomesteadSigner{}, ringKeys[from])
//			gen.AddTx(tx)
//			from = to
//		}
//	}
//}

// genUncles generates blocks with two uncle headers.
func genUncles(i int, gen *BlockGen) {
	if i >= 6 {
		b2 := gen.PrevBlock(i - 6).Header()
		b2.Extra = []byte("foo")
		gen.AddUncle(b2)
		b3 := gen.PrevBlock(i - 6).Header()
		b3.Extra = []byte("bar")
		gen.AddUncle(b3)
	}
}

//func benchInsertChain(b *testing.B, disk bool, gen func(int, *BlockGen)) {
//	// Create the database in memory or in a temporary directory.
//	var db neatdb.Database
//	if !disk {
//		db, _ = rawdb.NewMemoryDatabase()
//	} else {
//		dir, err := ioutil.TempDir("", "eth-core-bench")
//		if err != nil {
//			b.Fatalf("cannot create temporary directory: %v", err)
//		}
//		defer os.RemoveAll(dir)
//		db, err = neatdb.NewLDBDatabase(dir, 128, 128)
//		if err != nil {
//			b.Fatalf("cannot create temporary database: %v", err)
//		}
//		defer db.Close()
//	}
//
//	// Generate a chain of b.N blocks using the supplied block
//	// generator function.
//	gspec := Genesis{
//		Config: params.TestChainConfig,
//		Alloc:  GenesisAlloc{benchRootAddr: {Balance: benchRootFunds}},
//	}
//	genesis := gspec.MustCommit(db)
//	chain, _ := GenerateChain(gspec.Config, genesis, nil, db, b.N, gen)
//
//	// Time the insertion of the new chain.
//	// State and blocks are stored in the same DB.
//	chainman, _ := NewBlockChain(db, nil, gspec.Config, nil, vm.Config{}, nil)
//	defer chainman.Stop()
//	b.ReportAllocs()
//	b.ResetTimer()
//	if i, err := chainman.InsertChain(chain); err != nil {
//		b.Fatalf("insert error (block %d): %v\n", i, err)
//	}
//}

//func BenchmarkChainRead_header_10k(b *testing.B) {
//	benchReadChain(b, false, 10000)
//}
//func BenchmarkChainRead_full_10k(b *testing.B) {
//	benchReadChain(b, true, 10000)
//}
//func BenchmarkChainRead_header_100k(b *testing.B) {
//	benchReadChain(b, false, 100000)
//}
//func BenchmarkChainRead_full_100k(b *testing.B) {
//	benchReadChain(b, true, 100000)
//}
//func BenchmarkChainRead_header_500k(b *testing.B) {
//	benchReadChain(b, false, 500000)
//}
//func BenchmarkChainRead_full_500k(b *testing.B) {
//	benchReadChain(b, true, 500000)
//}
//func BenchmarkChainWrite_header_10k(b *testing.B) {
//	benchWriteChain(b, false, 10000)
//}
//func BenchmarkChainWrite_full_10k(b *testing.B) {
//	benchWriteChain(b, true, 10000)
//}
//func BenchmarkChainWrite_header_100k(b *testing.B) {
//	benchWriteChain(b, false, 100000)
//}
//func BenchmarkChainWrite_full_100k(b *testing.B) {
//	benchWriteChain(b, true, 100000)
//}
//func BenchmarkChainWrite_header_500k(b *testing.B) {
//	benchWriteChain(b, false, 500000)
//}
//func BenchmarkChainWrite_full_500k(b *testing.B) {
//	benchWriteChain(b, true, 500000)
//}

// makeChainForBench writes a given number of headers or empty blocks/receipts
// into a database.
//func makeChainForBench(db neatdb.Database, full bool, count uint64) {
//	var hash common.Hash
//	for n := uint64(0); n < count; n++ {
//		header := &types.Header{
//			Coinbase:    common.Address{},
//			Number:      big.NewInt(int64(n)),
//			ParentHash:  hash,
//			Difficulty:  big.NewInt(1),
//			UncleHash:   types.EmptyUncleHash,
//			TxHash:      types.EmptyRootHash,
//			ReceiptHash: types.EmptyRootHash,
//		}
//		hash = header.Hash()
//		WriteHeader(db, header)
//		WriteCanonicalHash(db, hash, n)
//		WriteTd(db, hash, n, big.NewInt(int64(n+1)))
//		if full || n == 0 {
//			block := types.NewBlockWithHeader(header)
//			WriteBody(db, hash, n, block.Body())
//			WriteBlockReceipts(db, hash, n, nil)
//		}
//	}
//}

//func benchWriteChain(b *testing.B, full bool, count uint64) {
//	for i := 0; i < b.N; i++ {
//		dir, err := ioutil.TempDir("", "eth-chain-bench")
//		if err != nil {
//			b.Fatalf("cannot create temporary directory: %v", err)
//		}
//		db, err := neatdb.NewLDBDatabase(dir, 128, 1024)
//		if err != nil {
//			b.Fatalf("error opening database at %v: %v", dir, err)
//		}
//		makeChainForBench(db, full, count)
//		db.Close()
//		os.RemoveAll(dir)
//	}
//}

//func benchReadChain(b *testing.B, full bool, count uint64) {
//	dir, err := ioutil.TempDir("", "eth-chain-bench")
//	if err != nil {
//		b.Fatalf("cannot create temporary directory: %v", err)
//	}
//	defer os.RemoveAll(dir)
//
//	db, err := neatdb.NewLDBDatabase(dir, 128, 1024)
//	if err != nil {
//		b.Fatalf("error opening database at %v: %v", dir, err)
//	}
//	makeChainForBench(db, full, count)
//	db.Close()
//
//	b.ReportAllocs()
//	b.ResetTimer()
//
//	for i := 0; i < b.N; i++ {
//		db, err := neatdb.NewLDBDatabase(dir, 128, 1024)
//		if err != nil {
//			b.Fatalf("error opening database at %v: %v", dir, err)
//		}
//		chain, err := NewBlockChain(db, nil, params.TestChainConfig, nil, vm.Config{}, nil)
//		if err != nil {
//			b.Fatalf("error creating chain: %v", err)
//		}
//
//		for n := uint64(0); n < count; n++ {
//			header := chain.GetHeaderByNumber(n)
//			if full {
//				hash := header.Hash()
//				GetBody(db, hash, n)
//				GetBlockReceipts(db, hash, n)
//			}
//		}
//
//		chain.Stop()
//		db.Close()
//	}
//}