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Sprint 0512 · Ops & Offline · Bench (190.G)

Topic & Scope

  • Build and capture performance benchmarks for graph, UI interactions, impact index, policy deltas, and reachability scoring to support offline/ops readiness.
  • Target harnesses under src/Bench/StellaOps.Bench with reproducible datasets.
  • Working directory: src/Bench/StellaOps.Bench.

Dependencies & Concurrency

  • Upstream data: graph fixtures (SAMPLES-GRAPH-24-003), reachability schema (Sprint 0400/0401), policy delta inputs.
  • UI bench depends on BENCH-GRAPH-21-001/002 harness foundation.

Documentation Prerequisites

  • docs/07_HIGH_LEVEL_ARCHITECTURE.md
  • docs/modules/platform/architecture-overview.md
  • docs/modules/graph/architecture.md (for graph bench scenarios)
  • docs/modules/signals/architecture.md (for reachability benches)
  • docs/modules/policy/architecture.md

Delivery Tracker

# Task ID Status Key dependency / next step Owners Task Definition
P1 PREP-BENCH-GRAPH-21-001-NEED-GRAPH-BENCH-HARN DONE (2025-11-20) Prep doc at docs/benchmarks/graph/bench-graph-21-001-prep.md; awaits fixtures (SAMPLES-GRAPH-24-003). Bench Guild · Graph Platform Guild Need graph bench harness scaffolding (50k/100k nodes).

Document artefact/deliverable for BENCH-GRAPH-21-001 and publish location so downstream tasks can proceed.
P2 PREP-BENCH-GRAPH-21-002-BLOCKED-ON-21-001-HAR DONE (2025-11-20) Due 2025-11-26 · Accountable: Bench Guild · UI Guild Bench Guild · UI Guild Prep artefact published at docs/benchmarks/graph/bench-graph-21-002-prep.md (Playwright UI bench plan leveraging 50k/100k fixtures; scenarios, metrics, determinism).
P3 PREP-BENCH-IMPACT-16-001-IMPACT-INDEX-DATASET DONE (2025-11-20) Due 2025-11-26 · Accountable: Bench Guild · Scheduler Team Bench Guild · Scheduler Team Prep artefact published at docs/benchmarks/impact/bench-impact-16-001-prep.md (dataset shape, replay plan, deterministic metrics).
P4 PREP-BENCH-POLICY-20-002-POLICY-DELTA-SAMPLE DONE (2025-11-20) Due 2025-11-26 · Accountable: Bench Guild · Policy Guild · Scheduler Guild Bench Guild · Policy Guild · Scheduler Guild Prep artefact published at docs/benchmarks/policy/bench-policy-20-002-prep.md (baseline + delta datasets, deterministic harness plan, metrics).
P5 PREP-BENCH-SIG-26-001-REACHABILITY-SCHEMA-FIX DONE (2025-11-20) Prep doc at docs/benchmarks/signals/bench-sig-26-001-prep.md; awaits reachability schema hash. Bench Guild · Signals Guild Reachability schema/fixtures pending Sprint 0400/0401.

Document artefact/deliverable for BENCH-SIG-26-001 and publish location so downstream tasks can proceed.
P6 PREP-BENCH-SIG-26-002-BLOCKED-ON-26-001-OUTPU DONE (2025-11-20) Prep doc at docs/benchmarks/signals/bench-sig-26-002-prep.md; depends on 26-001 datasets. Bench Guild · Policy Guild Blocked on 26-001 outputs.

Document artefact/deliverable for BENCH-SIG-26-002 and publish location so downstream tasks can proceed.
1 BENCH-GRAPH-21-001 BLOCKED PREP-BENCH-GRAPH-21-001-NEED-GRAPH-BENCH-HARN Bench Guild · Graph Platform Guild Build graph viewport/path benchmark harness (50k/100k nodes) measuring Graph API/Indexer latency, memory, and tile cache hit rates.
2 BENCH-GRAPH-21-002 BLOCKED PREP-BENCH-GRAPH-21-002-BLOCKED-ON-21-001-HAR Bench Guild · UI Guild Add headless UI load benchmark (Playwright) for graph canvas interactions to track render times and FPS budgets.
3 BENCH-GRAPH-24-002 BLOCKED Waiting for 50k/100k graph fixture (SAMPLES-GRAPH-24-003) Bench Guild · UI Guild Implement UI interaction benchmarks (filter/zoom/table operations) citing p95 latency; integrate with perf dashboards.
4 BENCH-IMPACT-16-001 BLOCKED PREP-BENCH-IMPACT-16-001-IMPACT-INDEX-DATASET Bench Guild · Scheduler Team ImpactIndex throughput bench (resolve 10k productKeys) + RAM profile.
5 BENCH-POLICY-20-002 BLOCKED PREP-BENCH-POLICY-20-002-POLICY-DELTA-SAMPLE Bench Guild · Policy Guild · Scheduler Guild Add incremental run benchmark measuring delta evaluation vs full; capture SLA compliance.
6 BENCH-SIG-26-001 BLOCKED PREP-BENCH-SIG-26-001-REACHABILITY-SCHEMA-FIX Bench Guild · Signals Guild Develop benchmark for reachability scoring pipeline (facts/sec, latency, memory) using synthetic callgraphs/runtime batches.
7 BENCH-SIG-26-002 BLOCKED PREP-BENCH-SIG-26-002-BLOCKED-ON-26-001-OUTPU Bench Guild · Policy Guild Measure policy evaluation overhead with reachability cache hot/cold; ensure ≤8 ms p95 added latency.

Execution Log

Date (UTC) Update Owner
2025-11-20 Completed PREP-BENCH-GRAPH-21-002: published UI bench prep doc at docs/benchmarks/graph/bench-graph-21-002-prep.md; status set to DONE. Implementer
2025-11-20 Completed PREP-BENCH-IMPACT-16-001: published impact index bench prep doc at docs/benchmarks/impact/bench-impact-16-001-prep.md; status set to DONE. Implementer
2025-11-20 Completed PREP-BENCH-POLICY-20-002: published policy delta bench prep doc at docs/benchmarks/policy/bench-policy-20-002-prep.md; status set to DONE. Implementer
2025-11-20 Published prep artefacts for PREP-BENCH-GRAPH-21-001, PREP-BENCH-SIG-26-001, and PREP-BENCH-SIG-26-002 under docs/benchmarks/; marked P1, P5, P6 DONE. Implementer
2025-11-19 Trimmed trailing hyphen from PREP-BENCH-POLICY-20-002 Task ID to keep BENCH-POLICY-20-002 blocker resolvable. Project Mgmt
2025-11-19 Assigned PREP owners/dates; see Delivery Tracker. Planning
2025-11-18 Marked BENCH-GRAPH-24-002, BENCH-IMPACT-16-001, BENCH-POLICY-20-002, BENCH-SIG-26-001/002 as BLOCKED pending fixtures/datasets and reachability schema. Bench
2025-11-18 Normalised sprint to standard template; renamed from SPRINT_512_bench.md. Ops/Docs

Decisions & Risks

  • Graph/UI benches depend on large fixtures (SAMPLES-GRAPH-24-003) and graph overlay schema; risk until fixtures land.
  • Reachability benches depend on runtime/static schema alignment (Sprint 0400/0401) and fixture relocation.
  • Policy/Impact benches require deterministic datasets; ensure no online dependencies.

Next Checkpoints

  • 2025-11-22 · Confirm availability of graph fixtures for BENCH-GRAPH-21-001/002/24-002. Owner: Bench Guild.
  • 2025-11-24 · Reachability schema alignment outcome to unblock BENCH-SIG-26-001. Owner: Signals Guild.
  • 2025-11-26 · Decide impact index dataset for BENCH-IMPACT-16-001. Owner: Scheduler Team.