Use correct http Agent for node-fetch, axios, got and request (nodejs#2629)

* Use correct http Agent for node-fetch, axios, got and request

Signed-off-by: Matteo Collina <hello@matteocollina.com>

* fixup

Signed-off-by: Matteo Collina <hello@matteocollina.com>

---------

Signed-off-by: Matteo Collina <hello@matteocollina.com>

Author: mcollina

README.md

@@ -18,21 +18,21 @@ npm i undici
 ## Benchmarks
 
 The benchmark is a simple `hello world` [example](benchmarks/benchmark.js) using a
-50 TCP connections with a pipelining depth of 10 running on Node 20.6.0.
-
-| Tests               | Samples |          Result | Tolerance | Difference with slowest |
-|---------------------|---------|-----------------|-----------|-------------------------|
-| got                 |      40 | 1676.51 req/sec |  ± 2.93 % |                       - |
-| undici - fetch      |      30 | 2081.23 req/sec |  ± 2.91 % |               + 24.14 % |
-| http - no keepalive |      30 | 2477.88 req/sec |  ± 2.73 % |               + 47.80 % |
-| axios               |      20 | 2673.40 req/sec |  ± 2.54 % |               + 59.46 % |
-| node-fetch          |      10 | 2776.09 req/sec |  ± 1.16 % |               + 65.59 % |
-| request             |      10 | 3458.80 req/sec |  ± 0.92 % |              + 106.31 % |
-| http - keepalive    |      40 | 4415.13 req/sec |  ± 3.00 % |              + 163.35 % |
-| undici - pipeline   |      10 | 5912.29 req/sec |  ± 3.00 % |              + 252.65 % |
-| undici - request    |      80 | 7829.95 req/sec |  ± 2.92 % |              + 367.04 % |
-| undici - stream     |      65 | 8221.08 req/sec |  ± 2.86 % |              + 390.37 % |
-| undici - dispatch   |      60 | 9600.55 req/sec |  ± 2.88 % |              + 472.65 % |
+50 TCP connections with a pipelining depth of 10 running on Node 20.10.0.
+
+│ Tests               │ Samples │          Result │ Tolerance │ Difference with slowest │
+|─────────────────────|─────────|─────────────────|───────────|─────────────────────────|
+│ got                 │      45 │ 1661.71 req/sec │  ± 2.93 % │                       - │
+│ node-fetch          │      20 │ 2164.81 req/sec │  ± 2.63 % │               + 30.28 % │
+│ undici - fetch      │      35 │ 2274.27 req/sec │  ± 2.70 % │               + 36.86 % │
+│ http - no keepalive │      15 │ 2376.04 req/sec │  ± 2.99 % │               + 42.99 % │
+│ axios               │      25 │ 2612.93 req/sec │  ± 2.89 % │               + 57.24 % │
+│ request             │      40 │ 2712.19 req/sec │  ± 2.92 % │               + 63.22 % │
+│ http - keepalive    │      45 │ 4393.25 req/sec │  ± 2.86 % │              + 164.38 % │
+│ undici - pipeline   │      45 │ 5484.69 req/sec │  ± 2.87 % │              + 230.06 % │
+│ undici - request    │      55 │ 7773.98 req/sec │  ± 2.93 % │              + 367.83 % │
+│ undici - stream     │      70 │ 8425.96 req/sec │  ± 2.91 % │              + 407.07 % │
+│ undici - dispatch   │      50 │ 9488.99 req/sec │  ± 2.85 % │              + 471.04 % │
 
 ## Quick Start
 

benchmarks/benchmark.js

@@ -66,6 +66,26 @@ const httpKeepAliveOptions = {
   })
 }
 
+const axiosAgent = new http.Agent({
+  keepAlive: true,
+  maxSockets: connections
+})
+
+const fetchAgent = new http.Agent({
+  keepAlive: true,
+  maxSockets: connections
+})
+
+const gotAgent = new http.Agent({
+  keepAlive: true,
+  maxSockets: connections
+})
+
+const requestAgent = new http.Agent({
+  keepAlive: true,
+  maxSockets: connections
+})
+
 const undiciOptions = {
   path: '/',
   method: 'GET',
@@ -280,7 +300,7 @@ if (process.env.PORT) {
 
   experiments['node-fetch'] = () => {
     return makeParallelRequests(resolve => {
-      nodeFetch(dest.url).then(res => {
+      nodeFetch(dest.url, { agent: fetchAgent }).then(res => {
         res.body.pipe(new Writable({
           write (chunk, encoding, callback) {
             callback()
@@ -292,7 +312,7 @@ if (process.env.PORT) {
 
   experiments.axios = () => {
     return makeParallelRequests(resolve => {
-      axios.get(dest.url, { responseType: 'stream' }).then(res => {
+      axios.get(dest.url, { responseType: 'stream', httpAgent: axiosAgent }).then(res => {
         res.data.pipe(new Writable({
           write (chunk, encoding, callback) {
             callback()
@@ -304,7 +324,7 @@ if (process.env.PORT) {
 
   experiments.got = () => {
     return makeParallelRequests(resolve => {
-      got.get(dest.url).then(res => {
+      got.get(dest.url, null, { http: gotAgent }).then(res => {
         res.pipe(new Writable({
           write (chunk, encoding, callback) {
             callback()
@@ -316,7 +336,7 @@ if (process.env.PORT) {
 
   experiments.request = () => {
     return makeParallelRequests(resolve => {
-      request(dest.url).then(res => {
+      request(dest.url, { agent: requestAgent }).then(res => {
         res.pipe(new Writable({
           write (chunk, encoding, callback) {
             callback()