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doc: use os.availableParallelism() in async_context and cluster #45979

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Dec 28, 2022
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doc: use os.availableParallelism() in async_context and cluster #45979

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4 changes: 2 additions & 2 deletions doc/api/async_context.md
View file
Original file line number Diff line number Diff line change
@@ -762,7 +762,7 @@ This pool could be used as follows:
import WorkerPool from './worker_pool.js';
import os from 'node:os';

const pool = new WorkerPool(os.cpus().length);
const pool = new WorkerPool(os.availableParallelism());

let finished = 0;
for (let i = 0; i < 10; i++) {
@@ -778,7 +778,7 @@ for (let i = 0; i < 10; i++) {
const WorkerPool = require('./worker_pool.js');
const os = require('node:os');

const pool = new WorkerPool(os.cpus().length);
const pool = new WorkerPool(os.availableParallelism());

let finished = 0;
for (let i = 0; i < 10; i++) {
18 changes: 9 additions & 9 deletions doc/api/cluster.md
View file
Original file line number Diff line number Diff line change
@@ -17,10 +17,10 @@ server ports.
```mjs
import cluster from 'node:cluster';
import http from 'node:http';
import { cpus } from 'node:os';
import { availableParallelism } from 'node:os';
import process from 'node:process';

const numCPUs = cpus().length;
const numCPUs = availableParallelism();

if (cluster.isPrimary) {
console.log(`Primary ${process.pid} is running`);
@@ -48,7 +48,7 @@ if (cluster.isPrimary) {
```cjs
const cluster = require('node:cluster');
const http = require('node:http');
const numCPUs = require('node:os').cpus().length;
const numCPUs = require('node:os').availableParallelism();
const process = require('node:process');

if (cluster.isPrimary) {
@@ -273,7 +273,7 @@ process of the number of HTTP requests received by the workers:
```mjs
import cluster from 'node:cluster';
import http from 'node:http';
import { cpus } from 'node:os';
import { availableParallelism } from 'node:os';
import process from 'node:process';

if (cluster.isPrimary) {
@@ -292,7 +292,7 @@ if (cluster.isPrimary) {
}

// Start workers and listen for messages containing notifyRequest
const numCPUs = cpus().length;
const numCPUs = availableParallelism();
for (let i = 0; i < numCPUs; i++) {
cluster.fork();
}
@@ -335,7 +335,7 @@ if (cluster.isPrimary) {
}

// Start workers and listen for messages containing notifyRequest
const numCPUs = require('node:os').cpus().length;
const numCPUs = require('node:os').availableParallelism();
for (let i = 0; i < numCPUs; i++) {
cluster.fork();
}
@@ -507,10 +507,10 @@ because of exiting or being signaled). Otherwise, it returns `false`.
```mjs
import cluster from 'node:cluster';
import http from 'node:http';
import { cpus } from 'node:os';
import { availableParallelism } from 'node:os';
import process from 'node:process';

const numCPUs = cpus().length;
const numCPUs = availableParallelism();

if (cluster.isPrimary) {
console.log(`Primary ${process.pid} is running`);
@@ -540,7 +540,7 @@ if (cluster.isPrimary) {
```cjs
const cluster = require('node:cluster');
const http = require('node:http');
const numCPUs = require('node:os').cpus().length;
const numCPUs = require('node:os').availableParallelism();
const process = require('node:process');

if (cluster.isPrimary) {