sp-array-no-reserve — measured, still hint

Status: measured. Default stays hint. The 2026-10-22 corpus verdict does not cover this JSONL.

ClaimCopy Anchor Link

One Array of 200000 Ints appended without reserveCapacity was about 1.6× the reserved fill (0.293 ms versus 0.180 ms). Thirty-two-element arrays repeated 4000 times were about 5.1× (1.133 ms versus 0.221 ms). Counts matched.

How measuredCopy Anchor Link

• swiftc -O, Apple Swift 6.3.2
• Raw: sp-array-no-reserve.jsonl

LimitsCopy Anchor Link

The large fill is modest. The matcher also reports that shape. Do not escalate.