[connortsui20]

Depends on #10755.

Summary

Public metadata fields expose the stored layout as Rust API and let callers bypass typed accessors. Restrict them to the owning crate while preserving the encoded metadata.

Changes

Add getters for CUDA’s Zstd metadata and a constructor and CRS getter for spatial callers. The TUI uses the existing flat-layout accessor. Internal struct literals and metadata golden files stay unchanged.

Formatting and clippy passed. Tests passed apart from chunked_input_with_mixed_dimensions_returns_error, which fails identically on the base. GPU tests were skipped without nvcc.

API Changes

Metadata fields are now pub(crate). Direct field access and struct literals from other crates no longer compile.

[codspeed]

Merging this PR will degrade performance by 49.03%

3 warnings, 1 note

⚠️ Walltime results may be unreliable

Some benchmarks used the Walltime instrument outside CodSpeed Macro Runners, which can make the results inconsistent.

Learn more about Macro Runners

See affected benchmarks

⚠️ Unable to measure the execution of 2 benchmarks

These benchmarks measured no execution time, so their results are not comparable and count as unchanged. This usually happens when the compiler removes the code under test.

Prevent compiler optimizations

See affected benchmarks

⚠️ 16 benchmarks are dominated by system calls

System calls cannot be simulated consistently and are left out of the measure. The reported value understates the real cost. Switch to the Walltime instrument to measure them.

Learn more about system calls

See affected benchmarks

ℹ️ 40 benchmarks have no flamegraph

The flamegraph wasn't generated: the symbols of the profiling trace could not be resolved, because no information about the language frames was collected.

See affected benchmarks

❌ 8 regressed benchmarks
✅ 2431 untouched benchmarks
⏩ 12 skipped benchmarks¹
🗄️ 12 archived benchmarks run²

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Walltime	mul_u16_nonnull_avx512	13.7 µs	30.6 µs	-55.33%
❌	Walltime	mul_u32_nonnull_avx512	13.9 µs	30.5 µs	-54.42%
❌	Walltime	subtract_shapes_avx512[(32768, PerRowPerRow)]	14 µs	29.9 µs	-53.17%
❌	Walltime	mul_i16_nonnull_avx512	14.4 µs	30.7 µs	-53.03%
❌	Walltime	mul_i32_nonnull_avx512	14.6 µs	30.7 µs	-52.57%
❌	Walltime	mul_i32_nullable_avx512	15.4 µs	30.8 µs	-49.85%
❌	Walltime	mul_i8_nonnull_avx512	18.7 µs	31.3 µs	-40.38%
❌	Walltime	mul_u8_nonnull_avx512	22.4 µs	31.2 µs	-28.31%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing ct/private-metadata-fields (68d9f68) with develop (423354d)}

Footnotes

1. 12 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

2. 12 benchmarks were run, but are now archived. If they were deleted in another branch, consider rebasing to remove them from the report. Instead if they were added back, click here to restore them. ↩