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Store optional logical page boundaries in PCO metadata - #10827

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dk/pco-logical-page-index
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danking wants to merge 3 commits into
dk/pco-selection-contractsfrom
dk/pco-logical-page-index

Update the existing compact stock-ticker size for optional PCO row me…

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CodSpeed / CodSpeed Performance Analysis failed Oct 26, 2026 in 0s

3 benchmarks regressed

4 warnings, 1 note

⚠️ Walltime results may be unreliable

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

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⚠️ 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

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⚠️ 19 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

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⚠️ Base and head ran on different runner types

Some benchmarks with significant performance changes were compared across different runner types, so the changes might not come from the code. Run base and head on the same runner type, or use CodSpeed Macro Runners for more stable results.

Learn more about Macro Runners

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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.

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⚡ 3 improved benchmarks
❌ 3 regressed benchmarks
✅ 2459 untouched benchmarks
⏩ 12 skipped benchmarks1

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

Mode Benchmark BASE HEAD Efficiency
❌ CPU Simulation metadata_open_batch[false] 385.4 ms 588.7 ms -34.54%
❌ CPU Simulation metadata_open_batch[true] 346.7 ms 506.8 ms -31.58%
❌ CPU Simulation filter_powerlaw_by_random[250000] 131.6 µs 174.7 µs -24.65%
⚡ CPU Simulation first_probes[false] 121.8 ms 59 ms ×2.1
⚡ CPU Simulation first_probes[true] 121.7 ms 59 ms ×2.1
⚡ CPU Simulation chunked_dict_primitive_canonical_into[f64, (1000, 1000, 10)] 200.6 µs 146.5 µs +36.93%

Tip

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


Comparing dk/pco-logical-page-index (0d82a2d) with dk/pco-selection-contracts (f56bceb)

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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. ↩