1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package ledger
import (
"testing"
"github.com/stretchr/testify/require"
"github.com/algorand/go-algorand/config"
"github.com/algorand/go-algorand/crypto"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/ledger/store/trackerdb"
ledgertesting "github.com/algorand/go-algorand/ledger/testing"
"github.com/algorand/go-algorand/protocol"
"github.com/algorand/go-algorand/test/partitiontest"
)
func TestOnlineAccountsCacheBasic(t *testing.T) {
partitiontest.PartitionTest(t)
proto := config.Consensus[protocol.ConsensusCurrentVersion]
var oac onlineAccountsCache
const maxCacheSize = 10
oac.init(nil, maxCacheSize)
addr := basics.Address(crypto.Hash([]byte{byte(0)}))
roundsNum := 50
for i := 0; i < roundsNum; i++ {
acct := cachedOnlineAccount{
updRound: basics.Round(i),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(i)}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
written := oac.writeFront(addr, acct)
require.True(t, written)
}
// verify that all these onlineaccounts are truly there.
for i := 0; i < roundsNum; i++ {
acct, has := oac.read(addr, basics.Round(i))
require.True(t, has)
require.Equal(t, basics.Round(i), acct.updRound)
require.Equal(t, uint64(i), acct.MicroAlgos.Raw)
}
for i := proto.MaxBalLookback; i < uint64(roundsNum)+proto.MaxBalLookback; i++ {
acct := cachedOnlineAccount{
updRound: basics.Round(i),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: i}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
written := oac.writeFront(addr, acct)
require.True(t, written)
}
oac.prune(basics.Round(proto.MaxBalLookback - 1))
// verify that all these accounts are truly there.
acct, has := oac.read(addr, basics.Round(proto.MaxBalLookback-1))
require.True(t, has)
require.Equal(t, basics.Round(roundsNum-1), acct.updRound)
require.Equal(t, uint64(roundsNum-1), acct.MicroAlgos.Raw)
for i := proto.MaxBalLookback; i < uint64(roundsNum)+proto.MaxBalLookback; i++ {
acct, has := oac.read(addr, basics.Round(i))
require.True(t, has)
require.Equal(t, basics.Round(i), acct.updRound)
require.Equal(t, uint64(i), acct.MicroAlgos.Raw)
}
_, has = oac.read(addr, basics.Round(0))
require.False(t, has)
// attempt to insert a value with the updRound less than latest, expect it to have ignored
acct = cachedOnlineAccount{
updRound: basics.Round(uint64(roundsNum) + proto.MaxBalLookback - 1),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: 100}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
written := oac.writeFront(addr, acct)
require.False(t, written)
}
func TestOnlineAccountsCachePruneOffline(t *testing.T) {
partitiontest.PartitionTest(t)
proto := config.Consensus[protocol.ConsensusCurrentVersion]
var oac onlineAccountsCache
const maxCacheSize = 10
oac.init(nil, maxCacheSize)
addr := basics.Address(crypto.Hash([]byte{byte(0)}))
roundsNum := 50
for i := 0; i < roundsNum; i++ {
acct := cachedOnlineAccount{
updRound: basics.Round(i),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(i)}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
oac.writeFront(addr, acct)
}
acct := cachedOnlineAccount{
updRound: basics.Round(roundsNum),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(roundsNum)}},
}
oac.writeFront(addr, acct)
_, has := oac.read(addr, basics.Round(proto.MaxBalLookback))
require.True(t, has)
oac.prune(basics.Round(proto.MaxBalLookback))
_, has = oac.read(addr, basics.Round(proto.MaxBalLookback))
require.False(t, has)
}
func TestOnlineAccountsCacheMaxEntries(t *testing.T) {
partitiontest.PartitionTest(t)
var oac onlineAccountsCache
const maxCacheSize = 10
oac.init(nil, maxCacheSize)
var lastAddr basics.Address
for i := 0; i < maxCacheSize; i++ {
lastAddr = ledgertesting.RandomAddress()
acct := cachedOnlineAccount{
updRound: basics.Round(i),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(i)}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
written := oac.writeFront(lastAddr, acct)
require.True(t, written)
}
acct := cachedOnlineAccount{
updRound: basics.Round(100),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(100)}, BaseVotingData: trackerdb.BaseVotingData{VoteLastValid: 1000}},
}
written := oac.writeFront(ledgertesting.RandomAddress(), acct)
require.False(t, written)
require.Equal(t, maxCacheSize, len(oac.accounts))
require.True(t, oac.full())
// set one to be expired
acct = cachedOnlineAccount{
updRound: basics.Round(maxCacheSize),
BaseOnlineAccountData: trackerdb.BaseOnlineAccountData{MicroAlgos: basics.MicroAlgos{Raw: uint64(100)}, BaseVotingData: trackerdb.BaseVotingData{}},
}
written = oac.writeFront(lastAddr, acct)
require.True(t, written)
// prune too old => no effect
oac.prune(maxCacheSize)
require.Equal(t, maxCacheSize, len(oac.accounts))
require.True(t, oac.full())
// remove one online entry that also trigger removal the offline remaining entry as well
oac.prune(maxCacheSize + 1)
require.Equal(t, maxCacheSize-1, len(oac.accounts))
require.False(t, oac.full())
// ensure not written
oac.writeFrontIfExist(ledgertesting.RandomAddress(), acct)
require.Equal(t, maxCacheSize-1, len(oac.accounts))
require.False(t, oac.full())
// write a new address, check writeFrontIfExist after
addr := ledgertesting.RandomAddress()
written = oac.writeFront(addr, acct)
require.True(t, written)
require.Equal(t, 1, oac.accounts[addr].Len())
acct.updRound++
oac.writeFrontIfExist(addr, acct)
require.Equal(t, 2, oac.accounts[addr].Len())
}
var benchmarkOnlineAccountsCacheReadResult cachedOnlineAccount
func benchmarkOnlineAccountsCacheRead(b *testing.B, historyLength int) {
// Create multiple accounts to simulate real usage and avoid excessive memory caching.
const numAccounts = 1000
makeAddress := func(i int) (addr basics.Address) {
addr[0] = byte(i)
return
}
var cache onlineAccountsCache
cache.init(nil, numAccounts)
// Iterate over rounds in the outer loop and accounts in the inner loop.
// This has large (negative) impact on lookup performance since an account's
// linked list nodes will not reside in memory consecutively.
for i := 1; i <= historyLength; i++ {
for j := 0; j < numAccounts; j++ {
cache.writeFront(makeAddress(j), cachedOnlineAccount{updRound: basics.Round(i)})
}
}
// Prevent the benchmark from using too few iterations. That would make the
// preparation stage above non-negligible.
minN := 100
if b.N < minN {
b.N = minN //nolint:staticcheck // intentionally setting b.N
}
var r cachedOnlineAccount
for i := 0; i < b.N; i++ {
for j := 0; j < numAccounts; j++ {
r, _ = cache.read(makeAddress(j), basics.Round(historyLength))
}
}
// Prevent compiler from optimizing the code.
benchmarkOnlineAccountsCacheReadResult = r
}
// A typical history length.
func BenchmarkOnlineAccountsCacheRead320(b *testing.B) {
benchmarkOnlineAccountsCacheRead(b, 320)
}
// A worst case history length when state proofs are delayed.
func BenchmarkOnlineAccountsCacheRead2560(b *testing.B) {
benchmarkOnlineAccountsCacheRead(b, 2560)
}
|
