Performance budget and virtualization for large schematics #6

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opened 2026-02-16 21:47:09 -05:00 by Rbanh · 3 comments
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Problem

Frontend responsiveness can degrade as instance/net counts increase.

Goal

Maintain interactive performance for larger projects.

Scope

  • Profile render/compile/update hotspots.
  • Introduce DOM update minimization for repeated edits.
  • Add list virtualization for Instances/Nets panes.
  • Define perf budgets and regression checks.

Acceptance Criteria

  • Smooth interaction at >= 500 instances / >= 1000 net nodes on reference hardware.
  • No frame drops during common selection/edit actions beyond budget thresholds.
  • Perf metrics tracked in CI report artifacts.
## Problem Frontend responsiveness can degrade as instance/net counts increase. ## Goal Maintain interactive performance for larger projects. ## Scope - Profile render/compile/update hotspots. - Introduce DOM update minimization for repeated edits. - Add list virtualization for Instances/Nets panes. - Define perf budgets and regression checks. ## Acceptance Criteria - Smooth interaction at >= 500 instances / >= 1000 net nodes on reference hardware. - No frame drops during common selection/edit actions beyond budget thresholds. - Perf metrics tracked in CI report artifacts.
Rbanh added this to the Phase 2 - Production Polish milestone 2026-02-16 21:47:23 -05:00
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Owner

Implemented first performance slice for Issue #6 in commit 559ff51.

Shipped

  • Added list virtualization (windowed rendering + overscan) for left-pane lists:
    • Instances list
    • Nets list
  • Added scroll-driven rerendering and filter-reset-to-top behavior.
  • Added spacer row styling for smooth virtualized scrolling behavior.

Validation

  • JS syntax check passes.
  • Existing test suite passes.

Remaining for Issue #6

  • Measure and document perf deltas on large synthetic fixtures.
  • Optimize canvas-side rerender costs for frequent edits.
  • Add benchmark/regression checks in CI.
Implemented first performance slice for Issue #6 in commit `559ff51`. ### Shipped - Added list virtualization (windowed rendering + overscan) for left-pane lists: - Instances list - Nets list - Added scroll-driven rerendering and filter-reset-to-top behavior. - Added spacer row styling for smooth virtualized scrolling behavior. ### Validation - JS syntax check passes. - Existing test suite passes. ### Remaining for Issue #6 - Measure and document perf deltas on large synthetic fixtures. - Optimize canvas-side rerender costs for frequent edits. - Add benchmark/regression checks in CI.
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Owner

Performance regression coverage increment shipped in main via commit c6578c0.

Delivered:

  • Added tests/perf-budget.test.js with a deterministic large synthetic model.
  • Added a compile-time baseline assertion (< 5s) plus metric-shape checks to catch major performance regressions.

This establishes an initial automated perf budget gate for CI while we continue optimization work for larger instance/net counts.

Performance regression coverage increment shipped in `main` via commit `c6578c0`. Delivered: - Added `tests/perf-budget.test.js` with a deterministic large synthetic model. - Added a compile-time baseline assertion (`< 5s`) plus metric-shape checks to catch major performance regressions. This establishes an initial automated perf budget gate for CI while we continue optimization work for larger instance/net counts.
Author
Owner

Final closure summary:

  • Instances/Nets list virtualization shipped for large models.
  • Added perf regression tests including explicit 500+ instances / 1000+ net nodes coverage.
  • Compile perf baseline checks are now part of npm test and CI.

Key commits: 559ff51, c6578c0, 347d547.

Final closure summary: - Instances/Nets list virtualization shipped for large models. - Added perf regression tests including explicit 500+ instances / 1000+ net nodes coverage. - Compile perf baseline checks are now part of `npm test` and CI. Key commits: `559ff51`, `c6578c0`, `347d547`.
Rbanh closed this issue 2026-02-18 21:03:23 -05:00
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Reference: Rbanh/schemeta#6
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