request localServer datasize between 131k and 165k , response time > 40ms

[dbit-xia]

When request datasize between 131k and 165k , response time > 40ms else response time < 2ms

OS: linux mint 20.3 (Una) unused container nginx version: nginx/1.23.0 njs version: nginx-module-njs_1.23.0+0.7.5-1_focal_amd64

nginx.conf

js_import xxx/http.js

location /njs {
        add_header content-type text/plain;
        js_content http.hello;
    }

http.js

function http(r) {
  r.return(200, "Hello world!");
}

export default {hello: http};

request script:

const fetch=require('node-fetch');
const body="1".repeat(132*1000); //postdata

async function request(){
	console.time("time")
	let res=await fetch("http://127.0.0.1/njs", {
	  "headers": {
		"content-type": "text/plain; charset=utf-8"
	  },
	  "body": body,
	  "method": "POST"
	})
	
	console.log('response:',(await res.text()));
	console.timeEnd("time")
}


async function main(){
	for (let i=0;i<10;i++){
		await request();
	}
}

main();

[dbit-xia]

Today, I tested with the container again and found that this problem only occurs when the request is made on the local network!