The Tracer Window

This window shows the internal state of the Crawler. It displays 4 lists: TodoParsersQueue, Parsers, Readers, TodoReadersQueue. A node is being read, then waits to be parsed, is then parsed and might produce new nodes that are sent to wait to be read. In this window a node travels counter-clockwise through the 4 lists. The color of the list is equivalent to the color of the node-state in the Tree-Visualization. The nodes in the Readers and Parsers lists also show how much work is completed (e.g: 27%). The Visualizer updates this window whenever it gets a message from the Crawler that something changed. If you want to update this window by hand just select "Update Tracer" from the Tracer menu.