decy/renacer.toml at main · paiml/decy · GitHub

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# Renacer Performance Assertions for decy
#
# These assertions enforce performance budgets for decy (C-to-Rust transpiler).
# Assertions run at build time (via cargo test) and fail CI if violated.
#
# Toyota Way Principle: Andon (stop the line when defects detected)

[[assertion]]
name = "transpilation_latency"
type = "critical_path"
max_duration_ms = 5000  # Transpilation of C files (parse + analyze + codegen)
fail_on_violation = true
enabled = true

[[assertion]]
name = "max_syscall_budget"
type = "span_count"
max_spans = 15000  # AST traversal + file I/O + LLVM operations
fail_on_violation = true
enabled = true

[[assertion]]
name = "memory_allocation_budget"
type = "memory_usage"
max_bytes = 1073741824  # 1GB maximum for AST + HIR + codegen
tracking_mode = "allocations"
fail_on_violation = true
enabled = true

[[assertion]]
name = "prevent_god_process"
type = "anti_pattern"
pattern = "GodProcess"
threshold = 0.8  # 80% confidence threshold
fail_on_violation = false  # Warning only (transpiler is inherently complex)
enabled = true

[[assertion]]
name = "detect_tight_loop"
type = "anti_pattern"
pattern = "TightLoop"
threshold = 0.7  # Detect excessive loop iterations
fail_on_violation = false  # Warning only (AST traversal has deep recursion)
enabled = true

# Disabled assertion (example - can be enabled for stricter checking)
[[assertion]]
name = "ultra_strict_latency"
type = "critical_path"
max_duration_ms = 1000  # <1s (very aggressive for transpilation)
fail_on_violation = true
enabled = false  # Disabled by default

# ==============================================================================
# Golden Trace Performance Validation
# ==============================================================================
# Validates that transpilation operations (parse, analyze, codegen)
# meet performance expectations using golden traces for regression detection.

[semantic_equivalence]
enabled = true
baseline_dir = "golden_traces/baseline"
min_confidence = 0.90  # 90% confidence required for PASS

# Validation checks
check_write_patterns = true          # Output correctness
check_file_operations = true         # File I/O validation
check_output_correctness = true      # Exact output matching
check_memory_allocations = false     # Allocations may vary

# Performance expectations
expected_speedup_min = 1.0           # Baseline comparison
expected_speedup_max = 10.0          # Sanity check for performance improvements

# Lamport clock configuration
[lamport_clock]
enabled = true
propagate_across_fork = true
propagate_across_exec = true
env_var = "RENACER_LAMPORT_CLOCK"

# Trace compression
[compression]
enabled = true
algorithm = "rle"  # Run-length encoding
min_file_size_kb = 100  # Only compress traces >100KB

# OpenTelemetry export (optional - for Jaeger/Grafana integration)
[otlp]
enabled = false  # Enable when observability stack available
endpoint = "http://localhost:4317"
service_name = "decy"

# CI/CD integration
[ci]
fail_fast = true  # Stop on first assertion failure (Andon principle)
export_format = "json"
export_path = "target/renacer-reports"
compare_with_baseline = true