You can use the VimDatastore provider.
Unfortunately that PSProvider doesn't have the IContentCmdletProvider interface implemented, so you have to download the file to local storage.
Then it's a matter of reading the file, finding all the 'unstun' messages and extract the info.
$vmName = 'MyVM'
Get-VM -Name $vmName -PipelineVariable vm |
ForEach-Object -Process {
$vmxPath = $vm.ExtensionData.Config.Files.VmpathName
$dsObj = Get-Datastore -Name $vmxPath.Split(']')[0].TrimStart('[')
New-PSDrive -Location $dsObj -Name DS -PSProvider VimDatastore -Root "\" | Out-Null
$tempFile = [System.IO.Path]::GetTempFileName()
Copy-DatastoreItem -Item "DS:\$($vm.Name)\vmware.log" -Destination $tempFile
Get-Content -Path $tempFile | where{$_ -match 'Checkpoint_Unstun'} |
ForEach-Object -Process {
$fields = $_.Split('|')
New-Object -TypeName PSObject -Property @{
VM = $vm.Name
Timestamp = [DateTime]$fields[0]
CPU = $fields[1].Trim(' ')
Duration = $fields[2].Split(' ')[6]
}
}
Remove-Item -Path $tempFile -Confirm:$false
Remove-PSDrive -Name DS -Confirm:$false
} | Select-Object VM,Timestamp,Duration
