374 lines
11 KiB
Go
374 lines
11 KiB
Go
// Copyright 2019 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 snapshot
|
|
|
|
import (
|
|
"bytes"
|
|
"math/big"
|
|
"math/rand"
|
|
"os"
|
|
"path"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/rlp"
|
|
)
|
|
|
|
func randomAccount() []byte {
|
|
root := randomHash()
|
|
a := Account{
|
|
Balance: big.NewInt(rand.Int63()),
|
|
Nonce: rand.Uint64(),
|
|
Root: root[:],
|
|
CodeHash: emptyCode[:],
|
|
}
|
|
data, _ := rlp.EncodeToBytes(a)
|
|
return data
|
|
}
|
|
|
|
// TestMergeBasics tests some simple merges
|
|
func TestMergeBasics(t *testing.T) {
|
|
var (
|
|
accounts = make(map[common.Hash][]byte)
|
|
storage = make(map[common.Hash]map[common.Hash][]byte)
|
|
)
|
|
// Fill up a parent
|
|
for i := 0; i < 100; i++ {
|
|
h := randomHash()
|
|
data := randomAccount()
|
|
|
|
accounts[h] = data
|
|
if rand.Intn(20) < 10 {
|
|
accStorage := make(map[common.Hash][]byte)
|
|
value := make([]byte, 32)
|
|
rand.Read(value)
|
|
accStorage[randomHash()] = value
|
|
storage[h] = accStorage
|
|
}
|
|
}
|
|
// Add some (identical) layers on top
|
|
parent := newDiffLayer(emptyLayer{}, common.Hash{}, accounts, storage)
|
|
child := newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
child = newDiffLayer(child, common.Hash{}, accounts, storage)
|
|
child = newDiffLayer(child, common.Hash{}, accounts, storage)
|
|
child = newDiffLayer(child, common.Hash{}, accounts, storage)
|
|
// And flatten
|
|
merged := (child.flatten()).(*diffLayer)
|
|
|
|
{ // Check account lists
|
|
// Should be zero/nil first
|
|
if got, exp := len(merged.accountList), 0; got != exp {
|
|
t.Errorf("accountList wrong, got %v exp %v", got, exp)
|
|
}
|
|
// Then set when we call AccountList
|
|
if got, exp := len(merged.AccountList()), len(accounts); got != exp {
|
|
t.Errorf("AccountList() wrong, got %v exp %v", got, exp)
|
|
}
|
|
if got, exp := len(merged.accountList), len(accounts); got != exp {
|
|
t.Errorf("accountList [2] wrong, got %v exp %v", got, exp)
|
|
}
|
|
}
|
|
{ // Check storage lists
|
|
i := 0
|
|
for aHash, sMap := range storage {
|
|
if got, exp := len(merged.storageList), i; got != exp {
|
|
t.Errorf("[1] storageList wrong, got %v exp %v", got, exp)
|
|
}
|
|
if got, exp := len(merged.StorageList(aHash)), len(sMap); got != exp {
|
|
t.Errorf("[2] StorageList() wrong, got %v exp %v", got, exp)
|
|
}
|
|
if got, exp := len(merged.storageList[aHash]), len(sMap); got != exp {
|
|
t.Errorf("storageList wrong, got %v exp %v", got, exp)
|
|
}
|
|
i++
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestMergeDelete tests some deletion
|
|
func TestMergeDelete(t *testing.T) {
|
|
var (
|
|
storage = make(map[common.Hash]map[common.Hash][]byte)
|
|
)
|
|
// Fill up a parent
|
|
h1 := common.HexToHash("0x01")
|
|
h2 := common.HexToHash("0x02")
|
|
|
|
flip := func() map[common.Hash][]byte {
|
|
accs := make(map[common.Hash][]byte)
|
|
accs[h1] = randomAccount()
|
|
accs[h2] = nil
|
|
return accs
|
|
}
|
|
flop := func() map[common.Hash][]byte {
|
|
accs := make(map[common.Hash][]byte)
|
|
accs[h1] = nil
|
|
accs[h2] = randomAccount()
|
|
return accs
|
|
}
|
|
|
|
// Add some flip-flopping layers on top
|
|
parent := newDiffLayer(emptyLayer{}, common.Hash{}, flip(), storage)
|
|
child := parent.Update(common.Hash{}, flop(), storage)
|
|
child = child.Update(common.Hash{}, flip(), storage)
|
|
child = child.Update(common.Hash{}, flop(), storage)
|
|
child = child.Update(common.Hash{}, flip(), storage)
|
|
child = child.Update(common.Hash{}, flop(), storage)
|
|
child = child.Update(common.Hash{}, flip(), storage)
|
|
|
|
if data, _ := child.Account(h1); data == nil {
|
|
t.Errorf("last diff layer: expected %x to be non-nil", h1)
|
|
}
|
|
if data, _ := child.Account(h2); data != nil {
|
|
t.Errorf("last diff layer: expected %x to be nil", h2)
|
|
}
|
|
// And flatten
|
|
merged := (child.flatten()).(*diffLayer)
|
|
|
|
if data, _ := merged.Account(h1); data == nil {
|
|
t.Errorf("merged layer: expected %x to be non-nil", h1)
|
|
}
|
|
if data, _ := merged.Account(h2); data != nil {
|
|
t.Errorf("merged layer: expected %x to be nil", h2)
|
|
}
|
|
// If we add more granular metering of memory, we can enable this again,
|
|
// but it's not implemented for now
|
|
//if got, exp := merged.memory, child.memory; got != exp {
|
|
// t.Errorf("mem wrong, got %d, exp %d", got, exp)
|
|
//}
|
|
}
|
|
|
|
// This tests that if we create a new account, and set a slot, and then merge
|
|
// it, the lists will be correct.
|
|
func TestInsertAndMerge(t *testing.T) {
|
|
// Fill up a parent
|
|
var (
|
|
acc = common.HexToHash("0x01")
|
|
slot = common.HexToHash("0x02")
|
|
parent *diffLayer
|
|
child *diffLayer
|
|
)
|
|
{
|
|
var accounts = make(map[common.Hash][]byte)
|
|
var storage = make(map[common.Hash]map[common.Hash][]byte)
|
|
parent = newDiffLayer(emptyLayer{}, common.Hash{}, accounts, storage)
|
|
}
|
|
{
|
|
var accounts = make(map[common.Hash][]byte)
|
|
var storage = make(map[common.Hash]map[common.Hash][]byte)
|
|
accounts[acc] = randomAccount()
|
|
accstorage := make(map[common.Hash][]byte)
|
|
storage[acc] = accstorage
|
|
storage[acc][slot] = []byte{0x01}
|
|
child = newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
}
|
|
// And flatten
|
|
merged := (child.flatten()).(*diffLayer)
|
|
{ // Check that slot value is present
|
|
got, _ := merged.Storage(acc, slot)
|
|
if exp := []byte{0x01}; bytes.Compare(got, exp) != 0 {
|
|
t.Errorf("merged slot value wrong, got %x, exp %x", got, exp)
|
|
}
|
|
}
|
|
}
|
|
|
|
type emptyLayer struct{}
|
|
|
|
func (emptyLayer) Update(blockRoot common.Hash, accounts map[common.Hash][]byte, storage map[common.Hash]map[common.Hash][]byte) *diffLayer {
|
|
panic("implement me")
|
|
}
|
|
|
|
func (emptyLayer) Journal() error {
|
|
panic("implement me")
|
|
}
|
|
|
|
func (emptyLayer) Stale() bool {
|
|
panic("implement me")
|
|
}
|
|
|
|
func (emptyLayer) Root() common.Hash {
|
|
return common.Hash{}
|
|
}
|
|
|
|
func (emptyLayer) Account(hash common.Hash) (*Account, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (emptyLayer) AccountRLP(hash common.Hash) ([]byte, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
func (emptyLayer) Storage(accountHash, storageHash common.Hash) ([]byte, error) {
|
|
return nil, nil
|
|
}
|
|
|
|
// BenchmarkSearch checks how long it takes to find a non-existing key
|
|
// BenchmarkSearch-6 200000 10481 ns/op (1K per layer)
|
|
// BenchmarkSearch-6 200000 10760 ns/op (10K per layer)
|
|
// BenchmarkSearch-6 100000 17866 ns/op
|
|
//
|
|
// BenchmarkSearch-6 500000 3723 ns/op (10k per layer, only top-level RLock()
|
|
func BenchmarkSearch(b *testing.B) {
|
|
// First, we set up 128 diff layers, with 1K items each
|
|
fill := func(parent snapshot) *diffLayer {
|
|
accounts := make(map[common.Hash][]byte)
|
|
storage := make(map[common.Hash]map[common.Hash][]byte)
|
|
|
|
for i := 0; i < 10000; i++ {
|
|
accounts[randomHash()] = randomAccount()
|
|
}
|
|
return newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
}
|
|
var layer snapshot
|
|
layer = emptyLayer{}
|
|
for i := 0; i < 128; i++ {
|
|
layer = fill(layer)
|
|
}
|
|
|
|
key := common.Hash{}
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
layer.AccountRLP(key)
|
|
}
|
|
}
|
|
|
|
// BenchmarkSearchSlot checks how long it takes to find a non-existing key
|
|
// - Number of layers: 128
|
|
// - Each layers contains the account, with a couple of storage slots
|
|
// BenchmarkSearchSlot-6 100000 14554 ns/op
|
|
// BenchmarkSearchSlot-6 100000 22254 ns/op (when checking parent root using mutex)
|
|
// BenchmarkSearchSlot-6 100000 14551 ns/op (when checking parent number using atomic)
|
|
func BenchmarkSearchSlot(b *testing.B) {
|
|
// First, we set up 128 diff layers, with 1K items each
|
|
accountKey := common.Hash{}
|
|
storageKey := common.HexToHash("0x1337")
|
|
accountRLP := randomAccount()
|
|
fill := func(parent snapshot) *diffLayer {
|
|
accounts := make(map[common.Hash][]byte)
|
|
accounts[accountKey] = accountRLP
|
|
storage := make(map[common.Hash]map[common.Hash][]byte)
|
|
|
|
accStorage := make(map[common.Hash][]byte)
|
|
for i := 0; i < 5; i++ {
|
|
value := make([]byte, 32)
|
|
rand.Read(value)
|
|
accStorage[randomHash()] = value
|
|
storage[accountKey] = accStorage
|
|
}
|
|
return newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
}
|
|
var layer snapshot
|
|
layer = emptyLayer{}
|
|
for i := 0; i < 128; i++ {
|
|
layer = fill(layer)
|
|
}
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
layer.Storage(accountKey, storageKey)
|
|
}
|
|
}
|
|
|
|
// With accountList and sorting
|
|
//BenchmarkFlatten-6 50 29890856 ns/op
|
|
//
|
|
// Without sorting and tracking accountlist
|
|
// BenchmarkFlatten-6 300 5511511 ns/op
|
|
func BenchmarkFlatten(b *testing.B) {
|
|
fill := func(parent snapshot) *diffLayer {
|
|
accounts := make(map[common.Hash][]byte)
|
|
storage := make(map[common.Hash]map[common.Hash][]byte)
|
|
|
|
for i := 0; i < 100; i++ {
|
|
accountKey := randomHash()
|
|
accounts[accountKey] = randomAccount()
|
|
|
|
accStorage := make(map[common.Hash][]byte)
|
|
for i := 0; i < 20; i++ {
|
|
value := make([]byte, 32)
|
|
rand.Read(value)
|
|
accStorage[randomHash()] = value
|
|
|
|
}
|
|
storage[accountKey] = accStorage
|
|
}
|
|
return newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
}
|
|
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
b.StopTimer()
|
|
var layer snapshot
|
|
layer = emptyLayer{}
|
|
for i := 1; i < 128; i++ {
|
|
layer = fill(layer)
|
|
}
|
|
b.StartTimer()
|
|
|
|
for i := 1; i < 128; i++ {
|
|
dl, ok := layer.(*diffLayer)
|
|
if !ok {
|
|
break
|
|
}
|
|
layer = dl.flatten()
|
|
}
|
|
b.StopTimer()
|
|
}
|
|
}
|
|
|
|
// This test writes ~324M of diff layers to disk, spread over
|
|
// - 128 individual layers,
|
|
// - each with 200 accounts
|
|
// - containing 200 slots
|
|
//
|
|
// BenchmarkJournal-6 1 1471373923 ns/ops
|
|
// BenchmarkJournal-6 1 1208083335 ns/op // bufio writer
|
|
func BenchmarkJournal(b *testing.B) {
|
|
fill := func(parent snapshot) *diffLayer {
|
|
accounts := make(map[common.Hash][]byte)
|
|
storage := make(map[common.Hash]map[common.Hash][]byte)
|
|
|
|
for i := 0; i < 200; i++ {
|
|
accountKey := randomHash()
|
|
accounts[accountKey] = randomAccount()
|
|
|
|
accStorage := make(map[common.Hash][]byte)
|
|
for i := 0; i < 200; i++ {
|
|
value := make([]byte, 32)
|
|
rand.Read(value)
|
|
accStorage[randomHash()] = value
|
|
|
|
}
|
|
storage[accountKey] = accStorage
|
|
}
|
|
return newDiffLayer(parent, common.Hash{}, accounts, storage)
|
|
}
|
|
var layer snapshot
|
|
layer = &diskLayer{
|
|
journal: path.Join(os.TempDir(), "difflayer_journal.tmp"),
|
|
}
|
|
for i := 1; i < 128; i++ {
|
|
layer = fill(layer)
|
|
}
|
|
b.ResetTimer()
|
|
|
|
for i := 0; i < b.N; i++ {
|
|
f, _ := layer.(*diffLayer).journal()
|
|
f.Close()
|
|
}
|
|
}
|