Shows increase (or decrease) in memory usage for processes over time

trend-memory-on-windows-report.ps1

[CmdletBinding()]
param (
    [Parameter(Mandatory=$true)]
    [ValidateScript({Test-Path -Path $_ -PathType Leaf})]
    [string]
    $ReportPath,

    [Parameter(Mandatory=$false)]
    [int]
    $EntryCount = 10
)

$memUsageReport = Import-Csv -Path $ReportPath
$processList = $memUsageReport | Group-Object -Property ProcessId | Where-Object -Property Count -gt $EntryCount |
           Select-Object -ExpandProperty Name | Sort-Object
$results = foreach ($processId in $processList) {
    $firstLast = $memUsageReport.where({$_.ProcessId -eq $processId}) | Select-Object -First 1 -Last 1
    [PSCustomObject]@{
        ID            = $firstLast[0].ProcessId
        Name          = $firstLast[0].Name
        ElapsedMin    = [math]::Round(((Get-Date -Date $firstLast[1].DateTime) - (Get-Date -Date $firstLast[0].DateTime)).TotalMinutes)
        IncreaseInMBs = [math]::Round(($firstLast[1].WorkingSetSize - $firstLast[0].WorkingSetSize) / 1MB)
        ArgTail     = $firstLast[0].CommandLine.Split(' ')[-1]
    }
}
$results | Sort-Object -Property IncreaseInMBs | Format-Table