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Monitor Delivery Optimization

To monitor Delivery Optimization, you can use either the Windows Update for Business Delivery Optimization Report or Windows PowerShell cmdlets.

Monitor with Windows Update for Business Delivery Optimization Report

Windows Update for Business Delivery Optimization Report provides you with information about your Delivery Optimization configuration, including the observed bandwidth savings across all devices that used peer-to-peer, Microsoft Connected Cache (MCC), HTTP source/CDN distribution over the past 28 days.

This screenshot shows the Windows Update for Business report, Delivery Optimization status in Update Compliance.

For details, see Windows Update for Business Delivery Optimization Report.

Windows PowerShell cmdlets

Starting in Windows 10, version 1703, you can use new PowerShell cmdlets to check the performance of Delivery Optimization.

Analyze usage

Get-DeliveryOptimizationStatus returns a real-time snapshot of all current Delivery Optimization jobs.

Key Value
File ID A GUID that identifies the file being processed
FileSize Size of the file
FileSizeInCache Size of the file in the cache
TotalBytesDownloaded The number of bytes from any source downloaded so far
PercentPeerCaching The percentage of bytes downloaded from peers versus over HTTP
BytesFromPeers Total bytes downloaded from peer devices (sum of bytes downloaded from LAN, Group, and Internet Peers)
BytesfromHTTP Total number of bytes received over HTTP. This metric represents all HTTP sources, which includes BytesFromCacheServer
Status Current state of the operation. Possible values are: Downloading (download in progress); Complete (download completed, but isn't uploading yet); Caching (download completed successfully and is ready to upload or uploading); Paused (download/upload paused by caller)
Priority Priority of the download; values are foreground or background
BytesFromCacheServer Total number of bytes received from cache server (MCC)
BytesFromLanPeers Total number of bytes received from peers found on the LAN
BytesFromGroupPeers Total number of bytes received from peers found in the group. (Note: Group mode is LAN + Group. If peers are found on the LAN, those bytes are registered in 'BytesFromLANPeers'.)
BytesFromInternetPeers Total number of bytes received from internet peers
BytesToLanPeers Total number of bytes delivered from peers found on the LAN
BytesToGroupPeers Total number of bytes delivered from peers found in the group
BytesToInternetPeers Total number of bytes delivered from peers found on the LAN
DownloadDuration Total download time in seconds
HttpConnectionCount
LanConnectionCount
GroupConnectionCount
InternetConnectionCount
DownloadMode
SourceURL Http source for the file
CacheHost IP address for the cache server
NumPeers Indicates the total number of peers returned from the service.
PredefinedCallerApplication Indicates the last caller that initiated a request for the file.
ExpireOn The target expiration date and time for the file.
IsPinned A yes/no value indicating whether an item has been "pinned" in the cache (see setDeliveryOptmizationStatus).

Get-DeliveryOptimizationPerfSnap returns a list of key performance data:

Key Value
FilesDownloaded Number of files downloaded
FilesUploaded Number of files uploaded
Files
TotalBytesDownloaded Total bytes downloaded
TotalBytesUploaded Total bytes uploaded
AverageDownloadSize Average transfer size (download); that is, the number bytes downloaded divided by the number of files
AverageUploadSize Average transfer size (upload); the number of bytes uploaded divided by the number of files
DownloadMode Delivery Optimization Download mode used to deliver file
CacheSizeBytes
TotalDiskBytes
AvailableDiskBytes
CpuUsagePct
MemUsageKB
NumberOfPeers
CacheHostConnections
CdnConnections
LanConnections
LinkLocalConnections
GroupConnections
InternetConnections
DownlinkBps
DownlinkUsageBps
UplinkBps
UplinkUsageBps
ForegroundDownloadRatePct
BackgroundDownloadRatePct
UploadRatePct
UplinkUsageBps
ForegroundDownloadRatePct
BackgroundDownloadRatePct
UploadRatePct
UploadCount
ForegroundDownloadCount
ForegroundDownloadsPending
BackgroundDownloadCount
BackgroundDownloadsPending

Using the -Verbose option returns additional information:

  • Bytes from peers (per type)
  • Bytes from CDN (the number of bytes received over HTTP)
  • Average number of peer connections per download

Starting in Windows 10, version 2004, Get-DeliveryOptimizationStatus has a new option -PeerInfo, which returns a real-time list of potential peers per file, including which peers are successfully connected and the total bytes sent or received from each peer.

Key Value
IP Peer device IP address
PeerType The type of peer used (LAN/Group/Internet/LinkLocal), determined by the Delivery Optimization Service, except for the LinkLocal option, which uses the DNS-SD protocol.
ConnectionEstablished True/False to indicate if peer is connected
BytesSent Bytes sent to/from the peer on the current connection
BytesReceived Bytes received to/from the peer on the current connection
UploadRateBytes Average value of upload rates on the current connection, over the past 20 seconds
DownloadRateBytes Average value of download rates on the current connection, over the past 20 seconds

Starting in Windows 10, version 1803, Get-DeliveryOptimizationPerfSnapThisMonth returns data similar to data from Get-DeliveryOptimizationPerfSnap but limited to the current calendar month.

Manage the Delivery Optimization cache

Starting in Windows 10, version 1903:

set-DeliveryOptimizationStatus -ExpireOn [date time] extends the expiration of all files in the cache. You can set the expiration immediately for all files that are in the "caching" state. For files in progress ("downloading"), the expiration is applied once the download is complete. You can set the expiration up to one year from the current date and time.

set-DeliveryOptimizationStatus -ExpireOn [date time] -FileID [FileID] extends expiration for a single specific file in the cache.

You can now "pin" files to keep them persistent in the cache, only with files that are downloaded in modes 1, 2, or 3.

set-DeliveryOptimizationStatus -Pin [True] -File ID [FileID] keeps a specific file in the cache such that it won't be deleted until the expiration date and time (which you set with set-DeliveryOptimizationStatus -ExpireOn [date time] -FileID [FileID]). The file is also excluded from the cache quota calculation.

set-DeliveryOptimizationStatus -Pin [False] -File ID [FileID] "unpins" a file, so that it will be deleted when the expiration date and time are reached. The file is included in the cache quota calculation.

delete-DeliveryOptimizationCache lets you clear files from the cache and remove all persisted data related to them. You can use these options with this cmdlet:

  • -FileID specifies a particular file to delete.
  • -IncludePinnedFiles deletes all files that are pinned.
  • -Force deletes the cache with no prompts.

Work with Delivery Optimization logs

Starting in Windows 10, version 2004:

  • Enable-DeliveryOptimizationVerboseLogs

  • Disable-DeliveryOptimizationVerboseLogs

  • Get-DeliveryOptimizationLogAnalysis [ETL Logfile path] [-ListConnections]

With no options, this cmdlet returns these data:

  • total number of files
  • number of foreground files
  • minimum file size for it to be cached
  • number of eligible (larger than the minimum size for peering) files
  • number of files that found peers
  • number of peering files (the number of files that got at least 1 byte from peers)
  • overall efficiency
  • efficiency in the peered files

Using the -ListConnections option returns these details about peers:

  • destination IP address
  • peer type
  • status code
  • bytes sent
  • bytes received
  • file ID

Starting in Windows 10, version 1803:

Get-DeliveryOptimizationLog [-Path <etl file path, supports wildcards>] [-Flush]

If Path isn't specified, this cmdlet reads all logs from the DoSvc log directory, which requires administrator permissions. If Flush is specified, the cmdlet stops DoSvc before reading logs.

Log entries are written to the PowerShell pipeline as objects. To dump logs to a text file, run Get-DeliveryOptimizationLog | Set-Content <output file> or something similar.

Starting in Windows 10, version 1803:

Get-DOConfig -Verbose

This cmdlet lists local configuration and policies that are applied to Delivery Optimization. This includes policies that are set via Group Policies or MDM Policies. Each policy is listed with the current set value and the provider of that policy. For example:

DownloadMode:Simple DownloadModeProvider:Mdm Provider

The provider is listed as "Default Provider" if it's using the Delivery Optimization platform configured default.

The cmdlet returns the following data: