mirror of
https://github.com/google-gemini/gemini-cli.git
synced 2026-08-09 00:16:57 -07:00
Anjaligarhwal
31 lines
1.1 KiB
TypeScript
31 lines
1.1 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import { createWriteStream } from 'node:fs';
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import { mkdir } from 'node:fs/promises';
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import { dirname } from 'node:path';
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import { pipeline } from 'node:stream/promises';
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import { getHeapSnapshot } from 'node:v8';
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/**
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* RSS threshold at which `/bug` auto-captures a heap snapshot.
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*/
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export const MEMORY_SNAPSHOT_AUTO_THRESHOLD_BYTES = 2 * 1024 * 1024 * 1024;
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/**
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* Capture a V8 heap snapshot from the current process and write it to disk.
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*
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* `v8.getHeapSnapshot()` returns a Readable stream whose producer is V8's
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* internal snapshot generator. Piping it through `node:stream/promises`'
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* `pipeline` propagates backpressure end-to-end, so even a multi-gigabyte
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* heap is written without buffering the serialized snapshot in memory.
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* Nothing is exposed over a debugger port.
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*/
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export async function captureHeapSnapshot(filePath: string): Promise<void> {
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await mkdir(dirname(filePath), { recursive: true });
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await pipeline(getHeapSnapshot(), createWriteStream(filePath));
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}
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