fix(ci): coverage floor failed on main — lower below the non-AVX-512 figure

[Fieldnote-Echo]

Main's coverage job went red after #63 merged (and #64 too). Root cause: the coverage runner (ubuntu-latest) has no AVX-512, so the runtime SIMD dispatch never exercises the AVX-512 kernels (bitmap/quant_kernels/sign_bitmap), and line coverage measured there is 81.92% — not the ~90% an AVX-512 host sees. The 85% floor I added in #63 was calibrated against an AVX-512-inflated local number (my machine has AVX-512). This lowers the floor to 78%, below the non-AVX-512 figure, so main and #64 go green. The AVX-512 paths remain covered by the separate avx512 job under Intel SDE. Follow-up worth filing: run the coverage job under SDE for the accurate ~90% number and a tighter, criterion-guarding floor.

[gemini-code-assist]

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[qodo-code-review]

Review Summary by Qodo

Lower coverage floor to 78% for non-AVX-512 runner

🐞 Bug fix

Walkthroughs

Description

• Lower coverage floor from 85% to 78% to account for AVX-512 unavailability
• Runner lacks AVX-512 support, so SIMD kernels unmeasured in coverage
• AVX-512 paths remain covered by separate SDE job
• Updated comments explaining the floor rationale and limitations

Diagram

flowchart LR
  A["Coverage Runner<br/>No AVX-512"] -->|"SIMD dispatch<br/>skips AVX-512"| B["Measured Coverage<br/>~82%"]
  C["AVX-512 Kernels<br/>bitmap/quant_kernels"] -->|"Covered by"| D["SDE Job<br/>~90% coverage"]
  B -->|"Floor set to"| E["78% Threshold<br/>Safe margin"]

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File Changes

1. .github/workflows/coverage.yml 🐞 Bug fix +12/-6

Adjust coverage floor and document AVX-512 limitations

• Reduced --fail-under-lines threshold from 85 to 78 percent
• Expanded comments explaining AVX-512 coverage gap and runner limitations
• Clarified that AVX-512 kernels are exercised by separate SDE job
• Added follow-up note about running coverage job under SDE for accurate measurements

.github/workflows/coverage.yml

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[qodo-code-review]

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)

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Codecov Report

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