erigon-pulse/turbo/trie/trie_eviction_test.go

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// 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 off
// 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/>.
// Pruning of the Merkle Patricia trees
package trie
import (
"testing"
"github.com/stretchr/testify/assert"
)
type mockAccountEvicter struct {
keys [][]byte
}
func newMockAccountEvicter() *mockAccountEvicter {
return &mockAccountEvicter{make([][]byte, 0)}
}
func (m *mockAccountEvicter) EvictNode(key []byte) {
m.keys = append(m.keys, key)
}
func TestEvictionBasicOperations(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
key := []byte{0x01, 0x01, 0x01, 0x01}
hex := keybytesToHex(key)
eviction.CodeNodeCreated(hex, 1024)
assert.Equal(t, 1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 1024, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
// grow
eviction.CodeNodeSizeChanged(hex, 2048)
assert.Equal(t, 2048, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 2048, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
// shrink
eviction.CodeNodeSizeChanged(hex, 100)
assert.Equal(t, 100, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 100, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
// shrink
eviction.CodeNodeDeleted(hex)
assert.Equal(t, 0, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
}
func TestEvictionPartialSingleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 100kb or accounts
for i := 0; i < 100; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.BranchNodeCreated(keybytesToHex(key))
}
assert.Equal(t, 100, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 99)
assert.Equal(t, 0, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 0, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 2, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, len(mock.keys), "should evict all 100 accounts")
}
func TestEvictionFullSingleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 100kb or accounts
for i := 0; i < 100; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.BranchNodeCreated(keybytesToHex(key))
}
assert.Equal(t, 100, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 0)
assert.Equal(t, 0, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 0, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 2, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, len(mock.keys), "should evict all 100 accounts")
}
func TestEvictionNoNeedSingleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 100kb or accounts
for i := 0; i < 100; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.BranchNodeCreated(keybytesToHex(key))
}
assert.Equal(t, 100, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 100)
assert.Equal(t, 100, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 100, int(eviction.generations.blockNumToGeneration[1].totalSize), "should register size of gen")
assert.Equal(t, 0, len(mock.keys), "should evict all 100 accounts")
}
func TestEvictionNoNeedMultipleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(2)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x02, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(4)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x03, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(5)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x04, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(7)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x05, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
// 50 kb total
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 5, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
for _, i := range []uint64{1, 2, 4, 5, 7} {
assert.Equal(t, 10*1024, int(eviction.generations.blockNumToGeneration[i].totalSize), "should register size of gen")
}
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 50*1024)
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 5, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 0, len(mock.keys), "should not evict anything")
}
func TestEvictionPartialMultipleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(2)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x02, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(4)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x03, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(5)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x04, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(7)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x05, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
// 50 kb total
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 5, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
for _, i := range []uint64{1, 2, 4, 5, 7} {
assert.Equal(t, 10*1024, int(eviction.generations.blockNumToGeneration[i].totalSize), "should register size of gen")
}
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 20*1024)
assert.Equal(t, 20*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 2, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 5, int(eviction.generations.oldestBlockNum), "should register block num")
for _, i := range []uint64{5, 7} {
assert.Equal(t, 10*1024, int(eviction.generations.blockNumToGeneration[i].totalSize), "should register size of gen")
}
assert.Equal(t, 30, len(mock.keys), "should evict only 3 generations")
}
func TestEvictionFullMultipleGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(1)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(2)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x02, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(4)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x03, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(5)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x04, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
eviction.SetBlockNumber(7)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x05, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
// 50 kb total
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 5, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 0, int(eviction.generations.oldestBlockNum), "should register block num")
for _, i := range []uint64{1, 2, 4, 5, 7} {
assert.Equal(t, 10*1024, int(eviction.generations.blockNumToGeneration[i].totalSize), "should register size of gen")
}
mock := newMockAccountEvicter()
eviction.EvictToFitSize(mock, 0)
assert.Equal(t, 0, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 0, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 8, int(eviction.generations.oldestBlockNum), "should register block num")
assert.Equal(t, 50, len(mock.keys), "should evict only 3 generations")
}
func TestEvictionMoveBetweenGen(t *testing.T) {
eviction := NewEviction()
eviction.SetBlockNumber(2)
for i := 0; i < 2; i++ {
key := []byte{0x01, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 10*1024)
}
eviction.SetBlockNumber(4)
// create 10kb or accounts
for i := 0; i < 1; i++ {
key := []byte{0x04, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 20*1024)
}
eviction.SetBlockNumber(5)
// create 10kb or accounts
for i := 0; i < 10; i++ {
key := []byte{0x05, 0x01, 0x01, byte(i)}
eviction.CodeNodeCreated(keybytesToHex(key), 1024)
}
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 3, len(eviction.generations.blockNumToGeneration), "should register generation")
eviction.CodeNodeTouched(keybytesToHex([]byte{0x01, 0x01, 0x01, 0x00}))
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 3, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 1, len(eviction.generations.blockNumToGeneration[2].keys()), "should move one acc")
assert.Equal(t, 11, len(eviction.generations.blockNumToGeneration[5].keys()), "should move one acc to gen 5")
assert.Equal(t, CodeKeyFromAddrHash(keybytesToHex([]byte{0x01, 0x01, 0x01, 0x01})), []byte(eviction.generations.blockNumToGeneration[2].keys()[0]), "should move one acc")
// move the acc again to the new block!
eviction.SetBlockNumber(10)
eviction.CodeNodeTouched(keybytesToHex([]byte{0x01, 0x01, 0x01, 0x00}))
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 4, len(eviction.generations.blockNumToGeneration), "should register generation")
assert.Equal(t, 10, len(eviction.generations.blockNumToGeneration[5].keys()), "should move one acc from gen 5, again 10")
assert.Equal(t, CodeKeyFromAddrHash(keybytesToHex([]byte{0x01, 0x01, 0x01, 0x00})), []byte(eviction.generations.blockNumToGeneration[10].keys()[0]), "should move one acc")
// move the last acc from the gen
eviction.CodeNodeTouched(keybytesToHex([]byte{0x01, 0x01, 0x01, 0x01}))
assert.Equal(t, 50*1024, int(eviction.TotalSize()), "should register all accounts")
assert.Equal(t, 3, len(eviction.generations.blockNumToGeneration), "should register generation")
_, found := eviction.generations.blockNumToGeneration[2]
assert.False(t, found, "2nd generation is empty and should be removed")
assert.Equal(t, 2, len(eviction.generations.blockNumToGeneration[10].keys()), "should move one acc")
}