29386598212
65%

Ran 15 Jul 2026 03:28AM UTC

Jobs 1

Files 33

Run time 1min

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Committed 15 Jul 2026 03:27AM UTC coverage: 64.936%. Remained the same

Build # 29386598212

Build Type

push

github

Committed by

freeeve

Commit Message

perf(wasm): fetch priority hints, bounded in-flight window, singleflight dedup

The browser fetch layer treated every ranged read independently: no priority
hint, unbounded join_all fans thrashing the ~6-connection per-origin budget,
and concurrent identical misses each hitting the network.

- every ranged read sends priority: 'high' (via Reflect, independent of
  web-sys's unstable API surface) -- all in-crate reads are demand-driven
- new fetch_window module: a cooperative FIFO in-flight window (default 8)
  gating the network half of every read; setFetchWindow(n) JS export
  (0 = unbounded); target-independent and unit-tested natively
- singleflight: concurrent identical (url, offset, len) misses share one
  network fetch via a Shared future table; the completing poll retires the
  entry and the range cache serves later repeats
- one reused Headers object per runtime (Range set and Request snapshotted
  with no await between)

Coverage Stats

2452 of 3776 relevant lines covered (64.94%)

89.58 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	29386598212.1	15 Jul 2026 03:28AM UTC	33	64.94	GitHub Action Run

freeeve / roaringrange / 29386598212
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