How to dispose PSObject

Ask Time：2014-10-19T15:49:35 Author：Ron

As shown in the code below I end up creating a new PSObject for each site in the sites collection. Eventually I need to run this for multiple SharePoint web applications each containing several sites, with the total sites crossing 2000. So that is a lot of PSObjects being created.

The PSObject does not have a dispose function so what are my options to make the code more efficient and dispose the object.

Also each time i execute the operation $SiteInfoCollection += $object there is reallocation of memory since it is a dynamic expanding array. According to some article i read several months ago any operation of memory reallocation is expensive and not good for performance. Is there a way to make this step efficient as well?

$SPWebApp = Get-SPWebApplication "http://portal.contoso.com"

$SiteInfoCollection = @()

foreach($site in $SPWebApp.sites)
    {
        $object = New-Object PSObject
        Add-Member -InputObject $object -MemberType NoteProperty -Name URL -Value ""
        Add-Member -InputObject $object -MemberType NoteProperty -Name Title -Value ""
        Add-Member -InputObject $object -MemberType NoteProperty -Name Template -Value ""

        $object.url = $site.url
        $object.title = $site.rootweb.title
        $object.template = $site.rootweb.WebTemplate

        $SiteInfoCollection += $object

        #$object.Dispose() #NOT valid operation
    }
    $site.Dispose()
}
$SiteInfoCollection

Author:Ron，eproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/26448498/how-to-dispose-psobject

How to dispose PSObject