Test scripts and progranm for IRM memory leak troubleshooting

express.js

const express = require('express')
const app = express()

app.get('/api', function (req, res)
{
    res.send('0')
})

app.listen(5001, function ()
{
    console.log('Example app listening on port 5001')
})

program.cs

using System;
using System.Diagnostics;
using System.IO;
using System.Net.Http;

namespace MemLeakRepro
{
    class Program
    {
        static void Main(string[] args)
        {
            if(args.Length != 2)
            {
                System.Console.WriteLine("usage: <Uri> <Count>");
                Environment.Exit(1);
            }
            
            DateTime start = DateTime.Now;
            System.Console.WriteLine("Start: {0}", start);

            Uri uri = new Uri(args[0]);
            Int32 count;

            if(!Int32.TryParse(args[1], out count))
            {
                count = 500000;
            }

            for (int i = 0; i < count; i++)
            {
                HttpClientHandler handler = new HttpClientHandler();
                HttpClient client = new HttpClient(handler);
                HttpResponseMessage response = client.GetAsync(uri).GetAwaiter().GetResult();
                StreamReader reader = new StreamReader(response.Content.ReadAsStreamAsync().GetAwaiter().GetResult());
                string result = reader.ReadToEnd();
                reader.Dispose();
            }

            DateTime end = DateTime.Now;
            System.Console.WriteLine("End: {0}", end);
            TimeSpan time = end - start;
            System.Console.WriteLine("Run: {0}", time);
            Process currentProcess = Process.GetCurrentProcess();
            double memoryInMB = currentProcess.WorkingSet64 / 1048576;
            System.Console.WriteLine("Memory: {0:N2} mb", memoryInMB);

            Console.WriteLine("Press any key to exit...");
            Console.ReadKey();
        }
    }
}

test.ps1

param(
    [Parameter(Mandatory = $true)]
    [ValidateSet('irm','httpclient','null','jsonobject','gc')]
    [String]
    $Test = 'irm',

    [int]
    $Count = 500000
)
$start = [datetime]::Now
'Start {0}' -f $start

if('irm' -eq $Test) {
    foreach($i in 1..$Count){
        $result = Invoke-RestMethod -Uri http://localhost:5001/api
    }
}

if('gc' -eq $Test) {
    foreach($i in 1..$Count){
        $result = Invoke-RestMethod -Uri http://localhost:5001/api
        [System.GC]::Collect()
    }
}

if('httpclient' -eq $Test) {
    foreach($i in 1..$Count){
        $Handler = [System.Net.Http.HttpClientHandler]::New()
        $HttpClient = [System.Net.Http.HttpClient]::New($Handler)
        $Response = $HttpClient.GetAsync('http://localhost:5001/api').GetAwaiter().GetResult()
        $Stream = $Response.Content.ReadAsStreamAsync().GetAwaiter().GetResult()
        $reader = [System.IO.StreamReader]::new($Stream)
        $result = $reader.ReadToEnd()
        $reader.Dispose()
    }
}

if('jsonobject' -eq $Test) {
    foreach($i in 1..$Count){
        $Handler = [System.Net.Http.HttpClientHandler]::New()
        $HttpClient = [System.Net.Http.HttpClient]::New($Handler)
        $Response = $HttpClient.GetAsync('http://localhost:5001/api').GetAwaiter().GetResult()
        $Stream = $Response.Content.ReadAsStreamAsync().GetAwaiter().GetResult()
        $reader = [System.IO.StreamReader]::new($Stream)
        $result = $reader.ReadToEnd()
        $jobject = [Microsoft.PowerShell.Commands.JsonObject]::ConvertFromJson($result,[ref]$null)
        $reader.Dispose()
    }
}

if('null' -eq $Test) {
    foreach($i in 1..$Count){
        $null = Invoke-RestMethod -Uri http://localhost:5001/api
    }
}

$end = [datetime]::Now
'End: {0}' -f $end
'Run: {0}' -f ($end - $start) 
'Memory {0:N2}mb' -f ([System.Diagnostics.Process]::GetCurrentProcess().WorkingSet64 /1mb)

test.sh

#!/bin/bash
for i in $(echo "500000 1000000 1500000 2000000")
do
    echo " "
    echo "======================== $i ==============================="

    echo "irm  -noni -nop $i:"
    pwsh -noni -nop -file ./test.ps1 -Test 'irm' -Count $i
    echo " "

    echo "null -noni -nop $i:"
    pwsh -noni -nop -file ./test.ps1 -Test 'null' -Count $i
    echo " "

    echo "httpclient -noni -nop $i:"
    pwsh -noni -nop -file ./test.ps1 -Test 'httpclient' -Count $i
    echo " "

    echo "jsonobject -noni -nop $i:"
    pwsh -noni -nop -file ./test.ps1 -Test 'jsonobject' -Count $i
    echo " "

    echo "irm $i:"
    pwsh -file ./test.ps1 -Test 'irm' -Count $i
    echo " "

    echo "null $i:"
    pwsh -file ./test.ps1 -Test 'null' -Count $i
    echo " "

    echo "httpclient $i:"
    pwsh -file ./test.ps1 -Test 'httpclient' -Count $i
    echo " "

    echo "jsonobject $i:"
    pwsh -file ./test.ps1 -Test 'jsonobject' -Count $i
    echo " "

    echo "dotnet $i:"
    ~/.dotnet/dotnet run http://localhost:5001/api $i

    echo "dotnet $i:"
    ~/.dotnet/dotnet run http://localhost:5001/api $i

    echo "======================== $i ==============================="
    echo " "
done