mirror of https://github.com/status-im/op-geth.git
661 lines
20 KiB
Go
661 lines
20 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"
|
|
"encoding/binary"
|
|
"fmt"
|
|
"math/rand"
|
|
"testing"
|
|
|
|
"github.com/VictoriaMetrics/fastcache"
|
|
"github.com/ethereum/go-ethereum/common"
|
|
"github.com/ethereum/go-ethereum/core/rawdb"
|
|
)
|
|
|
|
// TestAccountIteratorBasics tests some simple single-layer iteration
|
|
func TestAccountIteratorBasics(t *testing.T) {
|
|
var (
|
|
destructs = make(map[common.Hash]struct{})
|
|
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(4) == 0 {
|
|
destructs[h] = struct{}{}
|
|
}
|
|
if rand.Intn(2) == 0 {
|
|
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{}, destructs, accounts, storage)
|
|
it := parent.AccountIterator(common.Hash{})
|
|
verifyIterator(t, 100, it)
|
|
}
|
|
|
|
type testIterator struct {
|
|
values []byte
|
|
}
|
|
|
|
func newTestIterator(values ...byte) *testIterator {
|
|
return &testIterator{values}
|
|
}
|
|
|
|
func (ti *testIterator) Seek(common.Hash) {
|
|
panic("implement me")
|
|
}
|
|
|
|
func (ti *testIterator) Next() bool {
|
|
ti.values = ti.values[1:]
|
|
return len(ti.values) > 0
|
|
}
|
|
|
|
func (ti *testIterator) Error() error {
|
|
return nil
|
|
}
|
|
|
|
func (ti *testIterator) Hash() common.Hash {
|
|
return common.BytesToHash([]byte{ti.values[0]})
|
|
}
|
|
|
|
func (ti *testIterator) Account() []byte {
|
|
return nil
|
|
}
|
|
|
|
func (ti *testIterator) Release() {}
|
|
|
|
func TestFastIteratorBasics(t *testing.T) {
|
|
type testCase struct {
|
|
lists [][]byte
|
|
expKeys []byte
|
|
}
|
|
for i, tc := range []testCase{
|
|
{lists: [][]byte{{0, 1, 8}, {1, 2, 8}, {2, 9}, {4},
|
|
{7, 14, 15}, {9, 13, 15, 16}},
|
|
expKeys: []byte{0, 1, 2, 4, 7, 8, 9, 13, 14, 15, 16}},
|
|
{lists: [][]byte{{0, 8}, {1, 2, 8}, {7, 14, 15}, {8, 9},
|
|
{9, 10}, {10, 13, 15, 16}},
|
|
expKeys: []byte{0, 1, 2, 7, 8, 9, 10, 13, 14, 15, 16}},
|
|
} {
|
|
var iterators []*weightedAccountIterator
|
|
for i, data := range tc.lists {
|
|
it := newTestIterator(data...)
|
|
iterators = append(iterators, &weightedAccountIterator{it, i})
|
|
|
|
}
|
|
fi := &fastAccountIterator{
|
|
iterators: iterators,
|
|
initiated: false,
|
|
}
|
|
count := 0
|
|
for fi.Next() {
|
|
if got, exp := fi.Hash()[31], tc.expKeys[count]; exp != got {
|
|
t.Errorf("tc %d, [%d]: got %d exp %d", i, count, got, exp)
|
|
}
|
|
count++
|
|
}
|
|
}
|
|
}
|
|
|
|
func verifyIterator(t *testing.T, expCount int, it AccountIterator) {
|
|
t.Helper()
|
|
|
|
var (
|
|
count = 0
|
|
last = common.Hash{}
|
|
)
|
|
for it.Next() {
|
|
hash := it.Hash()
|
|
if bytes.Compare(last[:], hash[:]) >= 0 {
|
|
t.Errorf("wrong order: %x >= %x", last, hash)
|
|
}
|
|
if it.Account() == nil {
|
|
t.Errorf("iterator returned nil-value for hash %x", hash)
|
|
}
|
|
count++
|
|
}
|
|
if count != expCount {
|
|
t.Errorf("iterator count mismatch: have %d, want %d", count, expCount)
|
|
}
|
|
if err := it.Error(); err != nil {
|
|
t.Errorf("iterator failed: %v", err)
|
|
}
|
|
}
|
|
|
|
// TestAccountIteratorTraversal tests some simple multi-layer iteration.
|
|
func TestAccountIteratorTraversal(t *testing.T) {
|
|
// Create an empty base layer and a snapshot tree out of it
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
// Stack three diff layers on top with various overlaps
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
|
|
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
|
|
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
|
|
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
|
|
|
|
// Verify the single and multi-layer iterators
|
|
head := snaps.Snapshot(common.HexToHash("0x04"))
|
|
|
|
verifyIterator(t, 3, head.(snapshot).AccountIterator(common.Hash{}))
|
|
verifyIterator(t, 7, head.(*diffLayer).newBinaryAccountIterator())
|
|
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x04"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
verifyIterator(t, 7, it)
|
|
}
|
|
|
|
// TestAccountIteratorTraversalValues tests some multi-layer iteration, where we
|
|
// also expect the correct values to show up.
|
|
func TestAccountIteratorTraversalValues(t *testing.T) {
|
|
// Create an empty base layer and a snapshot tree out of it
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
// Create a batch of account sets to seed subsequent layers with
|
|
var (
|
|
a = make(map[common.Hash][]byte)
|
|
b = make(map[common.Hash][]byte)
|
|
c = make(map[common.Hash][]byte)
|
|
d = make(map[common.Hash][]byte)
|
|
e = make(map[common.Hash][]byte)
|
|
f = make(map[common.Hash][]byte)
|
|
g = make(map[common.Hash][]byte)
|
|
h = make(map[common.Hash][]byte)
|
|
)
|
|
for i := byte(2); i < 0xff; i++ {
|
|
a[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 0, i))
|
|
if i > 20 && i%2 == 0 {
|
|
b[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 1, i))
|
|
}
|
|
if i%4 == 0 {
|
|
c[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 2, i))
|
|
}
|
|
if i%7 == 0 {
|
|
d[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 3, i))
|
|
}
|
|
if i%8 == 0 {
|
|
e[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 4, i))
|
|
}
|
|
if i > 50 || i < 85 {
|
|
f[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 5, i))
|
|
}
|
|
if i%64 == 0 {
|
|
g[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 6, i))
|
|
}
|
|
if i%128 == 0 {
|
|
h[common.Hash{i}] = []byte(fmt.Sprintf("layer-%d, key %d", 7, i))
|
|
}
|
|
}
|
|
// Assemble a stack of snapshots from the account layers
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, a, nil)
|
|
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil, b, nil)
|
|
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil, c, nil)
|
|
snaps.Update(common.HexToHash("0x05"), common.HexToHash("0x04"), nil, d, nil)
|
|
snaps.Update(common.HexToHash("0x06"), common.HexToHash("0x05"), nil, e, nil)
|
|
snaps.Update(common.HexToHash("0x07"), common.HexToHash("0x06"), nil, f, nil)
|
|
snaps.Update(common.HexToHash("0x08"), common.HexToHash("0x07"), nil, g, nil)
|
|
snaps.Update(common.HexToHash("0x09"), common.HexToHash("0x08"), nil, h, nil)
|
|
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x09"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
head := snaps.Snapshot(common.HexToHash("0x09"))
|
|
for it.Next() {
|
|
hash := it.Hash()
|
|
want, err := head.AccountRLP(hash)
|
|
if err != nil {
|
|
t.Fatalf("failed to retrieve expected account: %v", err)
|
|
}
|
|
if have := it.Account(); !bytes.Equal(want, have) {
|
|
t.Fatalf("hash %x: account mismatch: have %x, want %x", hash, have, want)
|
|
}
|
|
}
|
|
}
|
|
|
|
// This testcase is notorious, all layers contain the exact same 200 accounts.
|
|
func TestAccountIteratorLargeTraversal(t *testing.T) {
|
|
// Create a custom account factory to recreate the same addresses
|
|
makeAccounts := func(num int) map[common.Hash][]byte {
|
|
accounts := make(map[common.Hash][]byte)
|
|
for i := 0; i < num; i++ {
|
|
h := common.Hash{}
|
|
binary.BigEndian.PutUint64(h[:], uint64(i+1))
|
|
accounts[h] = randomAccount()
|
|
}
|
|
return accounts
|
|
}
|
|
// Build up a large stack of snapshots
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
for i := 1; i < 128; i++ {
|
|
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(200), nil)
|
|
}
|
|
// Iterate the entire stack and ensure everything is hit only once
|
|
head := snaps.Snapshot(common.HexToHash("0x80"))
|
|
verifyIterator(t, 200, head.(snapshot).AccountIterator(common.Hash{}))
|
|
verifyIterator(t, 200, head.(*diffLayer).newBinaryAccountIterator())
|
|
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x80"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
verifyIterator(t, 200, it)
|
|
}
|
|
|
|
// TestAccountIteratorFlattening tests what happens when we
|
|
// - have a live iterator on child C (parent C1 -> C2 .. CN)
|
|
// - flattens C2 all the way into CN
|
|
// - continues iterating
|
|
func TestAccountIteratorFlattening(t *testing.T) {
|
|
// Create an empty base layer and a snapshot tree out of it
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
// Create a stack of diffs on top
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
|
|
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
|
|
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
|
|
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
|
|
|
|
// Create an iterator and flatten the data from underneath it
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x04"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
if err := snaps.Cap(common.HexToHash("0x04"), 1); err != nil {
|
|
t.Fatalf("failed to flatten snapshot stack: %v", err)
|
|
}
|
|
//verifyIterator(t, 7, it)
|
|
}
|
|
|
|
func TestAccountIteratorSeek(t *testing.T) {
|
|
// Create a snapshot stack with some initial data
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil,
|
|
randomAccountSet("0xaa", "0xee", "0xff", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), nil,
|
|
randomAccountSet("0xbb", "0xdd", "0xf0"), nil)
|
|
|
|
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"), nil,
|
|
randomAccountSet("0xcc", "0xf0", "0xff"), nil)
|
|
|
|
// Construct various iterators and ensure their tranversal is correct
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x02"), common.HexToHash("0xdd"))
|
|
defer it.Release()
|
|
verifyIterator(t, 3, it) // expected: ee, f0, ff
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x02"), common.HexToHash("0xaa"))
|
|
defer it.Release()
|
|
verifyIterator(t, 3, it) // expected: ee, f0, ff
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x02"), common.HexToHash("0xff"))
|
|
defer it.Release()
|
|
verifyIterator(t, 0, it) // expected: nothing
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x04"), common.HexToHash("0xbb"))
|
|
defer it.Release()
|
|
verifyIterator(t, 5, it) // expected: cc, dd, ee, f0, ff
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x04"), common.HexToHash("0xef"))
|
|
defer it.Release()
|
|
verifyIterator(t, 2, it) // expected: f0, ff
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x04"), common.HexToHash("0xf0"))
|
|
defer it.Release()
|
|
verifyIterator(t, 1, it) // expected: ff
|
|
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x04"), common.HexToHash("0xff"))
|
|
defer it.Release()
|
|
verifyIterator(t, 0, it) // expected: nothing
|
|
}
|
|
|
|
// TestIteratorDeletions tests that the iterator behaves correct when there are
|
|
// deleted accounts (where the Account() value is nil). The iterator
|
|
// should not output any accounts or nil-values for those cases.
|
|
func TestIteratorDeletions(t *testing.T) {
|
|
// Create an empty base layer and a snapshot tree out of it
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
// Stack three diff layers on top with various overlaps
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"),
|
|
randomAccountSet("0x11", "0x22", "0x33"), nil)
|
|
|
|
set := randomAccountSet("0x11", "0x22", "0x33")
|
|
deleted := common.HexToHash("0x22")
|
|
set[deleted] = nil
|
|
snaps.Update(common.HexToHash("0x03"), common.HexToHash("0x02"), set, nil)
|
|
|
|
snaps.Update(common.HexToHash("0x04"), common.HexToHash("0x03"),
|
|
randomAccountSet("0x33", "0x44", "0x55"), nil)
|
|
|
|
// The output should be 11,33,44,55
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x04"), common.Hash{})
|
|
// Do a quick check
|
|
verifyIterator(t, 4, it)
|
|
it.Release()
|
|
|
|
// And a more detailed verification that we indeed do not see '0x22'
|
|
it, _ = snaps.AccountIterator(common.HexToHash("0x04"), common.Hash{})
|
|
defer it.Release()
|
|
for it.Next() {
|
|
hash := it.Hash()
|
|
if it.Account() == nil {
|
|
t.Errorf("iterator returned nil-value for hash %x", hash)
|
|
}
|
|
if hash == deleted {
|
|
t.Errorf("expected deleted elem %x to not be returned by iterator", deleted)
|
|
}
|
|
}
|
|
}
|
|
|
|
// BenchmarkAccountIteratorTraversal is a bit a bit notorious -- all layers contain the
|
|
// exact same 200 accounts. That means that we need to process 2000 items, but
|
|
// only spit out 200 values eventually.
|
|
//
|
|
// The value-fetching benchmark is easy on the binary iterator, since it never has to reach
|
|
// down at any depth for retrieving the values -- all are on the toppmost layer
|
|
//
|
|
// BenchmarkAccountIteratorTraversal/binary_iterator_keys-6 2239 483674 ns/op
|
|
// BenchmarkAccountIteratorTraversal/binary_iterator_values-6 2403 501810 ns/op
|
|
// BenchmarkAccountIteratorTraversal/fast_iterator_keys-6 1923 677966 ns/op
|
|
// BenchmarkAccountIteratorTraversal/fast_iterator_values-6 1741 649967 ns/op
|
|
func BenchmarkAccountIteratorTraversal(b *testing.B) {
|
|
// Create a custom account factory to recreate the same addresses
|
|
makeAccounts := func(num int) map[common.Hash][]byte {
|
|
accounts := make(map[common.Hash][]byte)
|
|
for i := 0; i < num; i++ {
|
|
h := common.Hash{}
|
|
binary.BigEndian.PutUint64(h[:], uint64(i+1))
|
|
accounts[h] = randomAccount()
|
|
}
|
|
return accounts
|
|
}
|
|
// Build up a large stack of snapshots
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
for i := 1; i <= 100; i++ {
|
|
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(200), nil)
|
|
}
|
|
// We call this once before the benchmark, so the creation of
|
|
// sorted accountlists are not included in the results.
|
|
head := snaps.Snapshot(common.HexToHash("0x65"))
|
|
head.(*diffLayer).newBinaryAccountIterator()
|
|
|
|
b.Run("binary iterator keys", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
got := 0
|
|
it := head.(*diffLayer).newBinaryAccountIterator()
|
|
for it.Next() {
|
|
got++
|
|
}
|
|
if exp := 200; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("binary iterator values", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
got := 0
|
|
it := head.(*diffLayer).newBinaryAccountIterator()
|
|
for it.Next() {
|
|
got++
|
|
head.(*diffLayer).accountRLP(it.Hash(), 0)
|
|
}
|
|
if exp := 200; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("fast iterator keys", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x65"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
got := 0
|
|
for it.Next() {
|
|
got++
|
|
}
|
|
if exp := 200; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("fast iterator values", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x65"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
got := 0
|
|
for it.Next() {
|
|
got++
|
|
it.Account()
|
|
}
|
|
if exp := 200; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
// BenchmarkAccountIteratorLargeBaselayer is a pretty realistic benchmark, where
|
|
// the baselayer is a lot larger than the upper layer.
|
|
//
|
|
// This is heavy on the binary iterator, which in most cases will have to
|
|
// call recursively 100 times for the majority of the values
|
|
//
|
|
// BenchmarkAccountIteratorLargeBaselayer/binary_iterator_(keys)-6 514 1971999 ns/op
|
|
// BenchmarkAccountIteratorLargeBaselayer/binary_iterator_(values)-6 61 18997492 ns/op
|
|
// BenchmarkAccountIteratorLargeBaselayer/fast_iterator_(keys)-6 10000 114385 ns/op
|
|
// BenchmarkAccountIteratorLargeBaselayer/fast_iterator_(values)-6 4047 296823 ns/op
|
|
func BenchmarkAccountIteratorLargeBaselayer(b *testing.B) {
|
|
// Create a custom account factory to recreate the same addresses
|
|
makeAccounts := func(num int) map[common.Hash][]byte {
|
|
accounts := make(map[common.Hash][]byte)
|
|
for i := 0; i < num; i++ {
|
|
h := common.Hash{}
|
|
binary.BigEndian.PutUint64(h[:], uint64(i+1))
|
|
accounts[h] = randomAccount()
|
|
}
|
|
return accounts
|
|
}
|
|
// Build up a large stack of snapshots
|
|
base := &diskLayer{
|
|
diskdb: rawdb.NewMemoryDatabase(),
|
|
root: common.HexToHash("0x01"),
|
|
cache: fastcache.New(1024 * 500),
|
|
}
|
|
snaps := &Tree{
|
|
layers: map[common.Hash]snapshot{
|
|
base.root: base,
|
|
},
|
|
}
|
|
snaps.Update(common.HexToHash("0x02"), common.HexToHash("0x01"), nil, makeAccounts(2000), nil)
|
|
for i := 2; i <= 100; i++ {
|
|
snaps.Update(common.HexToHash(fmt.Sprintf("0x%02x", i+1)), common.HexToHash(fmt.Sprintf("0x%02x", i)), nil, makeAccounts(20), nil)
|
|
}
|
|
// We call this once before the benchmark, so the creation of
|
|
// sorted accountlists are not included in the results.
|
|
head := snaps.Snapshot(common.HexToHash("0x65"))
|
|
head.(*diffLayer).newBinaryAccountIterator()
|
|
|
|
b.Run("binary iterator (keys)", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
got := 0
|
|
it := head.(*diffLayer).newBinaryAccountIterator()
|
|
for it.Next() {
|
|
got++
|
|
}
|
|
if exp := 2000; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("binary iterator (values)", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
got := 0
|
|
it := head.(*diffLayer).newBinaryAccountIterator()
|
|
for it.Next() {
|
|
got++
|
|
v := it.Hash()
|
|
head.(*diffLayer).accountRLP(v, 0)
|
|
}
|
|
if exp := 2000; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("fast iterator (keys)", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x65"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
got := 0
|
|
for it.Next() {
|
|
got++
|
|
}
|
|
if exp := 2000; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
b.Run("fast iterator (values)", func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
it, _ := snaps.AccountIterator(common.HexToHash("0x65"), common.Hash{})
|
|
defer it.Release()
|
|
|
|
got := 0
|
|
for it.Next() {
|
|
it.Account()
|
|
got++
|
|
}
|
|
if exp := 2000; got != exp {
|
|
b.Errorf("iterator len wrong, expected %d, got %d", exp, got)
|
|
}
|
|
}
|
|
})
|
|
}
|
|
|
|
/*
|
|
func BenchmarkBinaryAccountIteration(b *testing.B) {
|
|
benchmarkAccountIteration(b, func(snap snapshot) AccountIterator {
|
|
return snap.(*diffLayer).newBinaryAccountIterator()
|
|
})
|
|
}
|
|
|
|
func BenchmarkFastAccountIteration(b *testing.B) {
|
|
benchmarkAccountIteration(b, newFastAccountIterator)
|
|
}
|
|
|
|
func benchmarkAccountIteration(b *testing.B, iterator func(snap snapshot) AccountIterator) {
|
|
// Create a diff stack and randomize the accounts across them
|
|
layers := make([]map[common.Hash][]byte, 128)
|
|
for i := 0; i < len(layers); i++ {
|
|
layers[i] = make(map[common.Hash][]byte)
|
|
}
|
|
for i := 0; i < b.N; i++ {
|
|
depth := rand.Intn(len(layers))
|
|
layers[depth][randomHash()] = randomAccount()
|
|
}
|
|
stack := snapshot(emptyLayer())
|
|
for _, layer := range layers {
|
|
stack = stack.Update(common.Hash{}, layer, nil, nil)
|
|
}
|
|
// Reset the timers and report all the stats
|
|
it := iterator(stack)
|
|
|
|
b.ResetTimer()
|
|
b.ReportAllocs()
|
|
|
|
for it.Next() {
|
|
}
|
|
}
|
|
*/
|