29390613375
65%

Ran 15 Jul 2026 05:07AM UTC

Jobs 1

Files 33

Run time 1min

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Committed 15 Jul 2026 05:06AM UTC coverage: 64.929%. Remained the same

Build # 29390613375

Build Type

push

github

Committed by

freeeve

Commit Message

perf(rust): stop the facet pricing waves bridging dead bytes across categories

The batched pricing waves used the library-wide 16 KiB coalesce gap, but the
priced categories are the top-by-count -- the LARGEST postings -- and in a
zipf-shaped sidecar consecutive large postings are separated by runs of tiny
ones, so the bridge chained across category boundaries through hundreds of
KB of dead bytes (measured: single 470 KB reads pricing a 20k-category
field). The waves now use a 2 KiB gap: containers within one category are
exactly adjacent so intra-category merging is unaffected, and cross-category
waste is capped at ~2 KiB per bridge.

Adds facet_wave_probe: a synthetic high-cardinality sidecar + recording
fetch that decomposes what the pricing path fetches (meta vs pricing, read
histogram) -- the local repro for remote byte-volume reports. Measured on
the deeplibby-shaped fixture (400k docs, 6 fields, 20k categories, 64-id
pool, top 16): pricing 1.62 MB -> 1.34 MB with the dead-bridge reads gone;
the remaining bytes are the meta boot (the by-count digest's target) and
real container bytes of dense categories.

Coverage Stats

2466 of 3798 relevant lines covered (64.93%)

90.9 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	29390613375.1	15 Jul 2026 05:07AM UTC	33	64.93	GitHub Action Run

freeeve / roaringrange / 29390613375
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