1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// Flags: --expose-gc'use strict';
const common = require('../common');
if (process.config.variables.asan) {  common.skip('ASAN messes with memory measurements');}
if (process.config.variables.arm_version === '7') {  common.skip('Too slow for armv7 bots');}
const assert = require('assert');const net = require('net');
// Tests that, when receiving small chunks, we do not keep the full length// of the original allocation for the libuv read call in memory.
let client;let baseRSS;const receivedChunks = [];const N = 250000;
const server = net.createServer(common.mustCall((socket) => {  baseRSS = process.memoryUsage.rss();
  socket.setNoDelay(true);  socket.on('data', (chunk) => {    receivedChunks.push(chunk);    if (receivedChunks.length < N) {      client.write('a');    } else {      client.end();      server.close();    }  });})).listen(0, common.mustCall(() => {  client = net.connect(server.address().port);  client.setNoDelay(true);  client.write('hello!');}));
process.on('exit', () => {  // TODO: support global.gc() compat  // global.gc();  const bytesPerChunk =    (process.memoryUsage.rss() - baseRSS) / receivedChunks.length;  // We should always have less than one page (usually ~ 4 kB) per chunk.  assert(bytesPerChunk < 650, `measured ${bytesPerChunk} bytes per chunk`);});