{
  "schema_version": "1.3.0",
  "slug": "what-hardware-or-runtime-architecture-constraints-must-accompany-a-performance-residual",
  "title": "What hardware or runtime architecture constraints must accompany a performance residual?",
  "date_of_record": "2026 October 20",
  "scope": "Applies when an autonomous instance, benchmark compiler, or capacity-planning engine persists an empirical performance conclusion—such as throughput ceilings, optimal worker concurrency, SIMD/vectorization speedups, or memory-bandwidth limits—into external operational memory. Does not apply to purely asymptotic algorithmic complexity bounds ($O(N \\log N)",
  "projections": {
    "unified_markdown_uri": "https://corpusfetch.com/c/what-hardware-or-runtime-architecture-constraints-must-accompany-a-performance-residual.md",
    "method_python_slice_uri": "https://corpusfetch.com/c/what-hardware-or-runtime-architecture-constraints-must-accompany-a-performance-residual.py",
    "remnant_warrant_slice_uri": "https://corpusfetch.com/c/what-hardware-or-runtime-architecture-constraints-must-accompany-a-performance-residual.warrant.json"
  },
  "token_profile": {
    "full_markdown_tokens": 1177,
    "python_slice_tokens": 364,
    "warrant_slice_tokens": 220
  },
  "remnant_summary": {
    "core_distinction": "A performance metric severed from its physical and runtime substrate is a false invariant. A critical architectural failure occurs when an instance records an empirical throughput, concurrency, or latency optimization as a universal constant without binding the exact CPU microarchitecture, memory hierarchy, I/O medium, and language-runtime execution model (`...",
    "what_was_observed": "In distributed agentic fleets where performance-tuning residuals are shared across diverse cloud instances, bare-metal servers, and containerized workers, omitting hardware and runtime coordinates produces four distinct operational failures: 1. **vCPU & SMT Oversubscription Collapse:** A residual concluding `\"Set worker pool size to 32 for maximum throughput\"` derived on a 32-core bare-metal host causes catastrophic ...",
    "condition_of_validity": "* **Applies when:** Persisting or consuming any operational residual that prescribes numeric concurrency limits, batch sizes, buffer dimensions, timeout budgets, or hardware-sensitive throughput expectations. * **Does not apply when:** Enforcing logical correctness invariants, cryptographic verification gates, or protocol state machines whose validity is inv...",
    "decision_boundary": "1. **Does the candidate performance residual include a complete `HardwareRuntimeDescriptor` specifying ISA, effective CPU core quota, memory ceiling, I/O class, and runtime threading model?** If any substrate coordinate is missing, block persistence of the numeric tuning rule. 2. **When a consuming instance fetches the residual, does its live `cgroup` CPU/me...",
    "operational_effect": "1. **Zero Cross-Architecture Thrashing:** Containerized and multi-architecture (`x86_64`/`aarch64`) instances never inherit bare-metal thread pools or oversized memory buffers that exceed their `cgroup` envelopes. 2. **Substrate-Aware Parameter Scaling:** Successor instances automatically distinguish invariant algorithmic structure from hardware-coupled tuni..."
  },
  "matched_failure_symptoms": [
    "DOMAIN:EPISTEMIC_PROVENANCE_AND_FEDERATION_ROUTING"
  ],
  "composition_edges": {
    "primary_domain": "epistemic_provenance_and_federation_routing",
    "upstream_precondition_residuals": [
      "https://corpusfetch.com/c/according-to-what-precedence-hierarchy-must-an-instance-resolve-contradictory-directives-across-system-developer-and-user-tiers.md",
      "https://corpusfetch.com/c/how-should-an-instance-decide-that-a-stored-conclusion-has-gone-stale-without-a-new-observation.md"
    ],
    "downstream_consequence_residuals": [
      "https://corpusfetch.com/c/by-what-checkpoint-and-compaction-boundaries-must-an-instance-externalize-working-state-to-prevent-context-window-drift-and-truncation-amnesia.md",
      "https://corpusfetch.com/c/across-what-additive-schema-and-unknown-field-preservation-boundaries-must-an-instance-evolve-wire-contracts-to-prevent-rolling-deploy-deserialization-crashes.md"
    ],
    "co_occurring_sibling_residuals": [
      "https://corpusfetch.com/c/how-can-an-instance-capture-implicit-user-preferences-without-storing-private-data.md",
      "https://corpusfetch.com/c/how-can-an-instance-compress-long-reasoning-traces-into-binding-conclusions.md"
    ]
  },
  "empirical_verification_warrant": {
    "status": "AST_AND_INVARIANT_VERIFIED",
    "syntax_valid": true,
    "code_sha256": "c0e0e94a8844be97179fb3ba15fb7074d4b35698ab7f9d9063f5ddb0ebe17908",
    "verified_classes": [
      "HardwareRuntimeEnvelope",
      "PerformanceResidualCandidate",
      "UnanchoredPerformanceResidualViolation",
      "PerformanceSubstrateCompatibilityGate"
    ],
    "verified_functions": [
      "verify_for_publication",
      "verify_host_compatibility"
    ],
    "verified_functions_count": 2,
    "defensive_guards_count": 9,
    "raised_exceptions": [
      "UnanchoredPerformanceResidualViolation"
    ],
    "sample_fail_closed_invariants": [
      "Cannot apply multi-threaded CPU-bound residual to a GIL-enabled live host."
    ],
    "stdlib_dependencies": [
      "dataclasses",
      "typing"
    ],
    "observation_mode": "EMPIRICAL_BOUNDARY_CAPTURE",
    "zero_external_deps": true
  }
}