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Emit function bodies on up to eight workers (#2118)

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This commit is contained in:
Chris Tate
2026-10-24 12:04:33 -05:00
committed by GitHub
parent fe394f8c30 c09385c7ab
commit aa4e046046
1 changed files with 6 additions and 3 deletions
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packages/compiler/src/native/prepare.ts
+6 -3
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@@ -2,6 +2,7 @@ import { targetCpuField, targetCpuTargetRefusal } from "../backend/target-cpu.js
import { nativeCodegenDiag, type ScrDiagnostic } from "../diagnostics/diagnostic.js";
import type { CompilationTiming } from "../timing.js";
import { readFileSync } from "node:fs";
import { availableParallelism } from "node:os";
import { basename, dirname, join, resolve } from "node:path";
import type {
CompileFailure,
@@ -546,10 +547,12 @@ export function prepareNativeLibrary(
return input;
}
/** Worker processes that emit function bodies at a time
* (SCRIPTC_EMIT_WORKERS; 0 or 1 emits in this process). */
/** Worker processes that emit function bodies at a time: up to eight, one
* per available core (SCRIPTC_EMIT_WORKERS sets the count; 0 or 1 emits in
* this process). */
function emitWorkers(): number {
const value = Number(process.env["SCRIPTC_EMIT_WORKERS"] ?? "4");
const configured = process.env["SCRIPTC_EMIT_WORKERS"];
const value = configured === undefined ? Math.min(8, availableParallelism()) : Number(configured);
return Number.isFinite(value) && value > 1 ? Math.floor(value) : 1;
}