|
| 1 | +package main |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "encoding/binary" |
| 6 | + "encoding/json" |
| 7 | + "errors" |
| 8 | + "fmt" |
| 9 | + "io" |
| 10 | + "log" |
| 11 | + "log/slog" |
| 12 | + "net/http" |
| 13 | + "os" |
| 14 | + "slices" |
| 15 | + "sync" |
| 16 | + "time" |
| 17 | + |
| 18 | + "github.com/ethereum/go-ethereum/common/hexutil" |
| 19 | + "github.com/flashbots/go-utils/rpcclient" |
| 20 | + "github.com/flashbots/go-utils/signature" |
| 21 | + "github.com/urfave/cli/v2" // imports as package "cli" |
| 22 | +) |
| 23 | + |
| 24 | +var flags []cli.Flag = []cli.Flag{ |
| 25 | + // input and output |
| 26 | + &cli.StringFlag{ |
| 27 | + Name: "local-orderflow-endpoint", |
| 28 | + Value: "http://127.0.0.1", |
| 29 | + Usage: "address to send orderflow to", |
| 30 | + EnvVars: []string{"LOCAL_ORDERPLOW_ENDPOINT"}, |
| 31 | + }, |
| 32 | + &cli.IntFlag{ |
| 33 | + Name: "local-receiver-server-port", |
| 34 | + Value: 8646, |
| 35 | + Usage: "address to send orderflow to", |
| 36 | + EnvVars: []string{"LOCAL_RECEIVER_SERVER__PORT"}, |
| 37 | + }, |
| 38 | + &cli.IntFlag{ |
| 39 | + Name: "num-senders", |
| 40 | + Value: 50, |
| 41 | + Usage: "Number of senders", |
| 42 | + EnvVars: []string{"NUM_SENDERS"}, |
| 43 | + }, |
| 44 | + &cli.IntFlag{ |
| 45 | + Name: "num-requests", |
| 46 | + Value: 50000, |
| 47 | + Usage: "Number of requests", |
| 48 | + EnvVars: []string{"NUM_REQUESTS"}, |
| 49 | + }, |
| 50 | +} |
| 51 | + |
| 52 | +// test tx |
| 53 | + |
| 54 | +func main() { |
| 55 | + app := &cli.App{ |
| 56 | + Name: "test-tx-sender", |
| 57 | + Usage: "send test transactions", |
| 58 | + Flags: flags, |
| 59 | + Action: func(cCtx *cli.Context) error { |
| 60 | + orderflowSigner, err := signature.NewRandomSigner() |
| 61 | + if err != nil { |
| 62 | + return err |
| 63 | + } |
| 64 | + slog.Info("Ordeflow signing address", "address", orderflowSigner.Address()) |
| 65 | + |
| 66 | + localOrderflowEndpoint := cCtx.String("local-orderflow-endpoint") |
| 67 | + client := rpcclient.NewClientWithOpts(localOrderflowEndpoint, &rpcclient.RPCClientOpts{ |
| 68 | + Signer: orderflowSigner, |
| 69 | + }) |
| 70 | + slog.Info("Created client") |
| 71 | + |
| 72 | + receiverPort := cCtx.Int("local-receiver-server-port") |
| 73 | + |
| 74 | + senders := cCtx.Int("num-senders") |
| 75 | + requests := cCtx.Int("num-requests") |
| 76 | + |
| 77 | + return runE2ELatencyTest(client, receiverPort, senders, requests) |
| 78 | + |
| 79 | + }, |
| 80 | + } |
| 81 | + |
| 82 | + if err := app.Run(os.Args); err != nil { |
| 83 | + log.Fatal(err) |
| 84 | + } |
| 85 | +} |
| 86 | + |
| 87 | +type sharedState struct { |
| 88 | + sentAt map[uint64]time.Time |
| 89 | + receivedAt map[uint64]time.Time |
| 90 | + mu sync.Mutex |
| 91 | +} |
| 92 | + |
| 93 | +func (s *sharedState) ServeHTTP(w http.ResponseWriter, r *http.Request) { |
| 94 | + receivedAt := time.Now() |
| 95 | + body, _ := io.ReadAll(r.Body) |
| 96 | + |
| 97 | + // serve builderhub API |
| 98 | + if r.URL.Path == "/api/l1-builder/v1/register_credentials/orderflow_proxy" { |
| 99 | + w.WriteHeader(http.StatusOK) |
| 100 | + return |
| 101 | + } else if r.URL.Path == "/api/l1-builder/v1/builders" { |
| 102 | + res, err := json.Marshal([]int{}) |
| 103 | + if err != nil { |
| 104 | + w.WriteHeader(http.StatusInternalServerError) |
| 105 | + return |
| 106 | + } |
| 107 | + w.WriteHeader(http.StatusOK) |
| 108 | + _, _ = w.Write(res) |
| 109 | + return |
| 110 | + } |
| 111 | + |
| 112 | + resp, err := json.Marshal(struct{}{}) |
| 113 | + if err != nil { |
| 114 | + w.WriteHeader(http.StatusInternalServerError) |
| 115 | + return |
| 116 | + } |
| 117 | + _, _ = w.Write(resp) |
| 118 | + |
| 119 | + // forwarded request received |
| 120 | + type jsonRPCRequest struct { |
| 121 | + Params []hexutil.Bytes `json:"params"` |
| 122 | + } |
| 123 | + |
| 124 | + var request jsonRPCRequest |
| 125 | + err = json.Unmarshal(body, &request) |
| 126 | + if err != nil { |
| 127 | + return |
| 128 | + } |
| 129 | + if len(request.Params) != 1 { |
| 130 | + return |
| 131 | + } |
| 132 | + |
| 133 | + decoded := binary.BigEndian.Uint64(request.Params[0]) |
| 134 | + |
| 135 | + s.mu.Lock() |
| 136 | + s.receivedAt[decoded] = receivedAt |
| 137 | + s.mu.Unlock() |
| 138 | + |
| 139 | +} |
| 140 | + |
| 141 | +func (s *sharedState) RunSender(client rpcclient.RPCClient, start, count int, wg *sync.WaitGroup) { |
| 142 | + defer wg.Done() |
| 143 | + for i := start; i < start+count; i += 1 { |
| 144 | + b := make([]byte, 8) |
| 145 | + //nolint:gosec |
| 146 | + binary.BigEndian.PutUint64(b, uint64(i)) |
| 147 | + request := hexutil.Bytes(b) |
| 148 | + |
| 149 | + s.mu.Lock() |
| 150 | + //nolint:gosec |
| 151 | + s.sentAt[uint64(i)] = time.Now() |
| 152 | + s.mu.Unlock() |
| 153 | + // send eth_sendRawTransactions |
| 154 | + resp, err := client.Call(context.Background(), "eth_sendRawTransaction", request) |
| 155 | + if err != nil { |
| 156 | + slog.Error("RPC request failed", "error", err) |
| 157 | + continue |
| 158 | + } |
| 159 | + if resp.Error != nil { |
| 160 | + slog.Error("RPC returned error", "error", resp.Error) |
| 161 | + continue |
| 162 | + } |
| 163 | + } |
| 164 | +} |
| 165 | + |
| 166 | +func runE2ELatencyTest(client rpcclient.RPCClient, receiverPort int, senders, requests int) error { |
| 167 | + state := &sharedState{ |
| 168 | + sentAt: make(map[uint64]time.Time), |
| 169 | + receivedAt: make(map[uint64]time.Time), |
| 170 | + mu: sync.Mutex{}, |
| 171 | + } |
| 172 | + |
| 173 | + //nolint:gosec |
| 174 | + receiverServer := &http.Server{ |
| 175 | + Addr: fmt.Sprintf("0.0.0.0:%d", receiverPort), |
| 176 | + Handler: state, |
| 177 | + } |
| 178 | + |
| 179 | + go func() { |
| 180 | + if err := receiverServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) { |
| 181 | + slog.Error("Failed while listening to server", "error", err) |
| 182 | + os.Exit(1) |
| 183 | + } |
| 184 | + }() |
| 185 | + |
| 186 | + countPerSender := requests / senders |
| 187 | + |
| 188 | + slog.Info("Waiting for startup") |
| 189 | + time.Sleep(time.Second * 5) |
| 190 | + slog.Info("Sending started") |
| 191 | + |
| 192 | + start := time.Now() |
| 193 | + offset := 0 |
| 194 | + var wg sync.WaitGroup |
| 195 | + for range senders { |
| 196 | + wg.Add(1) |
| 197 | + go state.RunSender(client, offset, countPerSender, &wg) |
| 198 | + offset += countPerSender |
| 199 | + } |
| 200 | + wg.Wait() |
| 201 | + sendingTime := time.Since(start) |
| 202 | + |
| 203 | + slog.Info("Waiting to finish") |
| 204 | + time.Sleep(time.Second * 1) |
| 205 | + |
| 206 | + state.mu.Lock() |
| 207 | + defer state.mu.Unlock() |
| 208 | + |
| 209 | + missedRequests := 0 |
| 210 | + totalRequests := len(state.sentAt) |
| 211 | + rps := float64(totalRequests) / (float64(sendingTime.Milliseconds()) / 1000.0) |
| 212 | + |
| 213 | + values := make([]float64, 0, totalRequests) |
| 214 | + for request, sentAt := range state.sentAt { |
| 215 | + receivedAt, ok := state.receivedAt[request] |
| 216 | + if !ok { |
| 217 | + missedRequests += 1 |
| 218 | + continue |
| 219 | + } |
| 220 | + diff := float64(receivedAt.Sub(sentAt).Microseconds()) / 1000.0 |
| 221 | + values = append(values, diff) |
| 222 | + } |
| 223 | + slices.Sort(values) |
| 224 | + p50 := values[(len(values)*50)/100] |
| 225 | + p99 := values[(len(values)*99)/100] |
| 226 | + p100 := values[len(values)-1] |
| 227 | + |
| 228 | + missedPercentage := float64(missedRequests) / float64(totalRequests) * 100.0 |
| 229 | + |
| 230 | + slog.Info("Results", "p50", p50, "p99", p99, "p100", p100, "totalReq", totalRequests, "missedRequests", missedRequests, "missedPercent", missedPercentage, "averageRPS", rps) |
| 231 | + |
| 232 | + return nil |
| 233 | +} |
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