You can use the following performance counters in Performance Monitor to monitor the activity of Device Update Service:
|The category name is UCUpdatesServer.|
UCUpdatesRequestsSucceeded.The number of update requests by
devices that resulted in successful installation of an update.
UCUpdatesRequestsFailed.The number of update requests by
devices that resulted in a failed update installation.
UCUpdatesRequestsReceived.The total number of update
UCUpdatesLogUploadRequests.The number of times devices
uploaded device logs to Device Update Service.
UCUpdatesLogAppendRequests.The number of times devices
uploaded device log messages to Device Update Service.