op-challenger: Make cannon processing info logging configurable

Reduce default frequency to avoid spamming the logs too much.

op-challenger/cmd/main_test.go

@@ -254,6 +254,28 @@ func TestCannonSnapshotFreq(t *testing.T) {
 		cfg := configForArgs(t, addRequiredArgs(config.TraceTypeCannon, "--cannon-snapshot-freq=1234"))
 		require.Equal(t, uint(1234), cfg.CannonSnapshotFreq)
 	})
+
+	t.Run("Invalid", func(t *testing.T) {
+		verifyArgsInvalid(t, "invalid value \"abc\" for flag -cannon-snapshot-freq",
+			addRequiredArgs(config.TraceTypeCannon, "--cannon-snapshot-freq=abc"))
+	})
+}
+
+func TestCannonInfoFreq(t *testing.T) {
+	t.Run("UsesDefault", func(t *testing.T) {
+		cfg := configForArgs(t, addRequiredArgs(config.TraceTypeCannon))
+		require.Equal(t, config.DefaultCannonInfoFreq, cfg.CannonInfoFreq)
+	})
+
+	t.Run("Valid", func(t *testing.T) {
+		cfg := configForArgs(t, addRequiredArgs(config.TraceTypeCannon, "--cannon-info-freq=1234"))
+		require.Equal(t, uint(1234), cfg.CannonInfoFreq)
+	})
+
+	t.Run("Invalid", func(t *testing.T) {
+		verifyArgsInvalid(t, "invalid value \"abc\" for flag -cannon-info-freq",
+			addRequiredArgs(config.TraceTypeCannon, "--cannon-info-freq=abc"))
+	})
 }
 
 func TestGameWindow(t *testing.T) {

op-challenger/config/config.go

@@ -26,6 +26,7 @@ var (
 	ErrMissingL1EthRPC               = errors.New("missing l1 eth rpc url")
 	ErrMissingGameFactoryAddress     = errors.New("missing game factory address")
 	ErrMissingCannonSnapshotFreq     = errors.New("missing cannon snapshot freq")
+	ErrMissingCannonInfoFreq         = errors.New("missing cannon info freq")
 	ErrMissingCannonRollupConfig     = errors.New("missing cannon network or rollup config path")
 	ErrMissingCannonL2Genesis        = errors.New("missing cannon network or l2 genesis path")
 	ErrCannonNetworkAndRollupConfig  = errors.New("only specify one of network or rollup config path")
@@ -78,6 +79,7 @@ func ValidTraceType(value TraceType) bool {
 
 const (
 	DefaultCannonSnapshotFreq = uint(1_000_000_000)
+	DefaultCannonInfoFreq     = uint(10_000_000)
 	// DefaultGameWindow is the default maximum time duration in the past
 	// that the challenger will look for games to progress.
 	// The default value is 11 days, which is a 4 day resolution buffer
@@ -111,6 +113,7 @@ type Config struct {
 	CannonL2GenesisPath    string
 	CannonL2               string // L2 RPC Url
 	CannonSnapshotFreq     uint   // Frequency of snapshots to create when executing cannon (in VM instructions)
+	CannonInfoFreq         uint   // Frequency of cannon progress log messages (in VM instructions)
 
 	TxMgrConfig   txmgr.CLIConfig
 	MetricsConfig opmetrics.CLIConfig
@@ -140,6 +143,7 @@ func NewConfig(
 		Datadir: datadir,
 
 		CannonSnapshotFreq: DefaultCannonSnapshotFreq,
+		CannonInfoFreq:     DefaultCannonInfoFreq,
 		GameWindow:         DefaultGameWindow,
 	}
 }
@@ -194,6 +198,9 @@ func (c Config) Check() error {
 		if c.CannonSnapshotFreq == 0 {
 			return ErrMissingCannonSnapshotFreq
 		}
+		if c.CannonInfoFreq == 0 {
+			return ErrMissingCannonInfoFreq
+		}
 	}
 	if c.TraceType == TraceTypeAlphabet && c.AlphabetTrace == "" {
 		return ErrMissingAlphabetTrace

op-challenger/config/config_test.go

@@ -132,6 +132,14 @@ func TestCannonSnapshotFreq(t *testing.T) {
 	})
 }
 
+func TestCannonInfoFreq(t *testing.T) {
+	t.Run("MustNotBeZero", func(t *testing.T) {
+		cfg := validConfig(TraceTypeCannon)
+		cfg.CannonInfoFreq = 0
+		require.ErrorIs(t, cfg.Check(), ErrMissingCannonInfoFreq)
+	})
+}
+
 func TestCannonNetworkOrRollupConfigRequired(t *testing.T) {
 	cfg := validConfig(TraceTypeCannon)
 	cfg.CannonNetwork = ""

op-challenger/flags/flags.go

@@ -116,6 +116,12 @@ var (
 		EnvVars: prefixEnvVars("CANNON_SNAPSHOT_FREQ"),
 		Value:   config.DefaultCannonSnapshotFreq,
 	}
+	CannonInfoFreqFlag = &cli.UintFlag{
+		Name:    "cannon-info-freq",
+		Usage:   "Frequency of cannon info log messages to generate in VM steps (cannon trace type only)",
+		EnvVars: prefixEnvVars("CANNON_INFO_FREQ"),
+		Value:   config.DefaultCannonInfoFreq,
+	}
 	GameWindowFlag = &cli.DurationFlag{
 		Name:    "game-window",
 		Usage:   "The time window which the challenger will look for games to progress.",
@@ -146,6 +152,7 @@ var optionalFlags = []cli.Flag{
 	CannonPreStateFlag,
 	CannonL2Flag,
 	CannonSnapshotFreqFlag,
+	CannonInfoFreqFlag,
 	GameWindowFlag,
 }
 
@@ -250,6 +257,7 @@ func NewConfigFromCLI(ctx *cli.Context) (*config.Config, error) {
 		Datadir:                 ctx.String(DatadirFlag.Name),
 		CannonL2:                ctx.String(CannonL2Flag.Name),
 		CannonSnapshotFreq:      ctx.Uint(CannonSnapshotFreqFlag.Name),
+		CannonInfoFreq:          ctx.Uint(CannonInfoFreqFlag.Name),
 		AgreeWithProposedOutput: ctx.Bool(AgreeWithProposedOutputFlag.Name),
 		TxMgrConfig:             txMgrConfig,
 		MetricsConfig:           metricsConfig,

op-challenger/game/fault/trace/cannon/executor.go

@@ -40,6 +40,7 @@ type Executor struct {
 	l2Genesis        string
 	absolutePreState string
 	snapshotFreq     uint
+	infoFreq         uint
 	selectSnapshot   snapshotSelect
 	cmdExecutor      cmdExecutor
 }
@@ -57,6 +58,7 @@ func NewExecutor(logger log.Logger, cfg *config.Config, inputs LocalGameInputs)
 		l2Genesis:        cfg.CannonL2GenesisPath,
 		absolutePreState: cfg.CannonAbsolutePreState,
 		snapshotFreq:     cfg.CannonSnapshotFreq,
+		infoFreq:         cfg.CannonInfoFreq,
 		selectSnapshot:   findStartingSnapshot,
 		cmdExecutor:      runCmd,
 	}
@@ -76,6 +78,7 @@ func (e *Executor) GenerateProof(ctx context.Context, dir string, i uint64) erro
 		"--input", start,
 		"--output", lastGeneratedState,
 		"--meta", "",
+		"--info-at", "%" + strconv.FormatUint(uint64(e.infoFreq), 10),
 		"--proof-at", "=" + strconv.FormatUint(i, 10),
 		"--proof-fmt", filepath.Join(proofDir, "%d.json.gz"),
 		"--snapshot-at", "%" + strconv.FormatUint(uint64(e.snapshotFreq), 10),

op-challenger/game/fault/trace/cannon/executor_test.go

@@ -29,6 +29,7 @@ func TestGenerateProof(t *testing.T) {
 	cfg.CannonServer = "./bin/op-program"
 	cfg.CannonL2 = "http://localhost:9999"
 	cfg.CannonSnapshotFreq = 500
+	cfg.CannonInfoFreq = 900
 
 	inputs := LocalGameInputs{
 		L1Head:        common.Hash{0x11},
@@ -81,6 +82,7 @@ func TestGenerateProof(t *testing.T) {
 		require.Equal(t, "=150000000", args["--proof-at"])
 		require.Equal(t, "=150000001", args["--stop-at"])
 		require.Equal(t, "%500", args["--snapshot-at"])
+		require.Equal(t, "%900", args["--info-at"])
 		// Slight quirk of how we pair off args
 		// The server binary winds up as the key and the first arg --server as the value which has no value
 		// Then everything else pairs off correctly again