Scheduler and stack defaults
Platform spec ADR
Scheduler and stack defaults
Spec standingStandard
- Concurrency package - Contracts and edge cases Send, Receive, Join, Cancel, and Hub normative contracts.
- Concurrency package - Decisions record (legacy index) Migration index pointing to per-decision ADR files under adr/—normative text lives in ADRs, not this page.
- Concurrency package - Design model Package layout, module map, and thin-wrapper rule for Fiber and Channel structs.
- Concurrency package - Examples Illustrative spawn, Channel, and Hub usage (informative).
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| Section id | Required | Found |
|---|---|---|
what-this-feature-specifies | yes | yes |
implementation-anchors | yes | yes |
Full tree: run pnpm verify:platform-spec-layout (writes src/generated/platform-spec-layout-report.json).
Context
Section titled “Context”Hosts need predictable defaults without per-program scheduler tuning.
Decision
Section titled “Decision”| Setting | Default |
|---|---|
ProcessorCount | Host logical CPU count at init |
| Stacks | 64 KiB initial, 8 MiB max |
| Arena | Phase A: one process arena; pool threads run Beskid mutator code under scheduler rules |
Consequences
Section titled “Consequences”Fiber scheduler design model article details syscall parking.