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perf(observation): reduce document processing scheduling overhead

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This commit is contained in:
Ljy-0827
2026-09-09 13:20:22 +08:00
committed by GitHub
parent e2b5acc904
commit 64bbbbf4f8
6 changed files with 100 additions and 38 deletions
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apps/extension/src/tools/vom/snapshot.ts
+14 -4
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@@ -1,4 +1,4 @@
import { captureCheckpoint } from "./capture-abort";
import { createCaptureCheckpoint } from "./capture-abort";
import type { CapturedNode } from "./capture-types";
import type { DecodedDocument, DecodedNode } from "./facts";
export const REQUESTED_STYLES = [
@@ -102,6 +102,7 @@ export async function decodeDocument(
strings: string[],
signal?: AbortSignal,
): Promise<DecodedDocument> {
const checkpoint = createCaptureCheckpoint(signal);
const dn = doc.nodes;
const dl = doc.layout;
if (!dn?.backendNodeId) {
@@ -111,7 +112,10 @@ export async function decodeDocument(
const count = dn.backendNodeId.length;
const layoutByNode = new Map<number, number>();
for (let i = 0; i < (dl?.nodeIndex?.length ?? 0); i++) {
if (i % 256 === 0) await captureCheckpoint(signal);
if (i % 256 === 0) {
const pending = checkpoint();
if (pending) await pending;
}
layoutByNode.set(dl!.nodeIndex![i], i);
}
@@ -126,7 +130,10 @@ export async function decodeDocument(
const nodeTextContent = new Map<number, string[]>();
if (dn.nodeValue) {
for (let n = 0; n < count; n++) {
if (n % 256 === 0) await captureCheckpoint(signal);
if (n % 256 === 0) {
const pending = checkpoint();
if (pending) await pending;
}
const nvIdx = dn.nodeValue[n] ?? -1;
if (nvIdx < 0) continue;
const text = str(strings, nvIdx).trim();
@@ -143,7 +150,10 @@ export async function decodeDocument(
// Decode fields without assigning a coordinate projection or semantic policy.
const nodes: DecodedNode[] = [];
for (let n = 0; n < count; n++) {
if (n % 256 === 0) await captureCheckpoint(signal);
if (n % 256 === 0) {
const pending = checkpoint();
if (pending) await pending;
}
const backendNodeId = dn.backendNodeId[n];
const parentIdx = dn.parentIndex?.[n] ?? -1;
const parentBackendNodeId = parentIdx >= 0 ? (dn.backendNodeId[parentIdx] ?? null) : null;