Add gcTrimCommitOnLowMemory runtime Aspnet configuration

add-aspnet-gctrimcommitonlowmemory.ps1

# https://www.saotn.org/aspnet-performance-what-to-keep-in-mind/#highdensitywebhosting

$bitness = @("64", "")
foreach ($bits in $bitness) {
  $xml = New-Object xml
  $xml.Load("C:\Windows\Microsoft.NET\Framework${bits}\v4.0.30319\Aspnet.config")

  # Check whether the runtime control gcTrimCommitOnLowMemory is already registered
  $nodeGcTrimCommitOnLowMemory = $xml.SelectSingleNode("configuration/runtime/gcTrimCommitOnLowMemory")

  # Not registered, let's add gcTrimCommitOnLowMemory
  if ($nodeGcTrimCommitOnLowMemory -eq $null) {
    $parentNode = $xml.SelectSingleNode("configuration/runtime")
    $childNode = $xml.CreateElement("gcTrimCommitOnLowMemory")
    $childNode.SetAttribute("enabled", "true")
    $parentNode.AppendChild($childNode)
  }

  $xml.Save("C:\Windows\Microsoft.NET\Framework${bits}\v4.0.30319\Aspnet.config")
}

Don't forget to reset IIS afterwards