# Tool and Stream Processing Time

Individual tool processing time is displayed in the Database Overview, as shown below:

The reported time is the average processing time for all of the images processed during the most recent processing period.

The processing time for a stream containing multiple tools is not available through the ViDi GUI, and you cannot estimate it by summing the tool execution time of the tools in the stream because the processing time includes the time required to prepare and transmit view information between tools.

When considering stream processing, remember that the processing of tools in a stream is always serialized when you call Stream.Process(). Only one tool is ever processed at a time unless you explicitly process tools individually using Tool.Process().