WindowsFeatureSet takes long time

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This topic contains 2 replies, has 2 voices, and was last updated by

MK
 
Participant
1 year, 8 months ago.

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  • #67533
    MK

    Participant
    Points: 1
    Rank: Member

    Hi,

    IIS installation through Roles and Features wizard takes about 4 minutes

    The same amount of time it takes if I use WindowsFeature resource.

    configuration Install-IIS{
    
        Import-DscResource -ModuleName PSDesiredStateConfiguration
    
        node localhost{
            
            WindowsFeature IIS{
                Ensure = 'Present'
                Name = 'Web-Server'
                IncludeAllSubFeature = $true
            }
        }
    
    }
    
    Install-IIS -OutputPath $PSScriptRoot
    Start-DscConfiguration -Path $PSScriptRoot -ComputerName localhost -Wait -Verbose
    

    but I don't need all sub features...

    So I decided to use WindowsFeatureSet

    configuration Install-IIS{
    
        $features = 'Web-Default-Doc', 'Web-Dir-Browsing', 'Web-Http-Errors', 'Web-Static-Content',
                    'Web-Http-Logging', 'Web-Request-Monitor',
                    'Web-Stat-Compression', 'Web-Filtering', 'Web-Basic-Auth', 'Web-Windows-Auth',
                    'Web-Net-Ext', 'Web-ASP', 'Web-Asp-Net', 'Web-ISAPI-Ext', 'Web-ISAPI-Filter', 'Web-WebSockets',
                    'Web-Mgmt-Console', 'Web-Scripting-Tools',
                    'Web-Net-Ext45', 'Web-Asp-Net45'
    
        Import-DscResource -ModuleName PSDesiredStateConfiguration
    
        node localhost{
            
            WindowsFeatureSet IIS{
                Ensure = "Present"
                Name = $features
            }
    
        }
    
    }
    
    Install-IIS -OutputPath $PSScriptRoot
    Start-DscConfiguration -Path $PSScriptRoot -ComputerName localhost -Wait -Verbose
    

    but it takes about 43 minutes. Why so long?

  • #67537

    Keymaster
    Points: 1,704
    Helping HandTeam Member
    Rank: Community Hero

    It's just how the installer works. It has to enumerate a ton of stuff under the hood and it's time consuming. Rather than doing it in one batch, it's doing each one individually, which means it has to unpack the files, check all the dependencies, copy all the bits, and whatnot – for each one. It's even slower on a VM if you're not real careful about disk I/O throughput – installations are always a little hellish on a VM unless the storage layer is super performant.

  • #67542
    MK

    Participant
    Points: 1
    Rank: Member

    I guess that's the same as installing through Roles and Features wizard one subfeature at a time. So how can I speed it up without installing all unnecessary subfeatures?

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