Module: Perfgate::Config::Defaults

Defined in:

lib/perfgate/config/defaults.rb

Overview

Default configuration values, matching the illustrative baseline.yml in spec section 11. storage.path intentionally uses the base directory from section 18.2's layout (.baseline) rather than the .baseline/results shown in section 11's example, since the two sections of the spec disagree and 18.2 is the more specific authority on directory layout.

Constant Summary

HASH =

{
  version: 1,
  profile: "default",
  execution: {
    samples: 8,
    warmup: 2,
    seed: 12_345,
    order: "defined",
    fail_fast: false,
    isolation: "process_per_workload"
  },
  metrics: {
    duration: { enabled: true },
    sql_count: { enabled: true },
    sql_duration: { enabled: true },
    allocations: { enabled: true },
    gc: { enabled: true },
    memory: { enabled: false }
  },
  comparison: {
    minimum_samples: 5,
    confidence_level: 0.95,
    # How much of a metric's own noise (MAD relative to its median)
    # we tolerate before treating a would-be "fail" as unreliable
    # and downgrading it to "warn" instead (spec 16.5). The spec
    # calls for noise-aware downgrading but doesn't name a default
    # ratio, so 0.5 (MAD up to half the median) was chosen as a
    # conservative starting point pending real-world tuning.
    noise_ratio_threshold: 0.5,
    practical_thresholds: {
      duration: { warning_percent: 10, failure_percent: 20, minimum_absolute_ms: 10 },
      sql_count: { warning_absolute: 1, failure_percent: 20 },
      sql_duration: { warning_percent: 15, failure_percent: 30, minimum_absolute_ms: 5 },
      allocations: { warning_percent: 15, failure_percent: 30 }
    }
  },
  policy: {
    fail_on: "fail",
    incompatible: "warn",
    missing_baseline: "warn",
    new_workload: "warn",
    removed_workload: "warn"
  },
  fingerprint: {
    strict: %w[
      ruby_engine ruby_version rails_version baseline_version_major
      database_adapter database_version_major workload_definition_hash dataset_hash
    ],
    informational: %w[
      operating_system cpu_model cpu_count memory_bytes
      ci_provider runner_image dependency_lock_hash
    ]
  },
  storage: { adapter: "filesystem", path: ".perfgate" },
  telemetry: { enabled: false }
}.freeze