{Quickref: A stress test for Texinfo} {Didier Verna} {Quickref is a global documentation project for the Common Lisp ecosystem. It creates reference manuals automatically by introspecting libraries and generating a corresponding documentation in Texinfo format. The Texinfo files may subsequently be converted into \PDF\ or \HTML. Quickref is non-intrusive: software developers do not have anything to do to get their libraries documented by the system. Quickref may be used to create a local website documenting your current, partial, working environment, but it is also able to document the whole Common Lisp ecosystem at once. The result is a website containing almost two thousand reference manuals. Quickref provides a Docker image for an easy recreation of this website, but a public version is also available and kept up to date at \url{quickref.common-lisp.net}. Quickref constitutes an enormous (and successful) stress test for Texinfo, and not only because of the number of files generated and processed. The Texinfo file sizes range from 7K to 15M (double that for the generated \HTML). The number of lines of Texinfo code in those files extend from 364 to 285,020, the indexes may contain between 14 and 44500 entries, and the processing times vary from .3s to 1m\,38s per file. In this talk, I will make a real-time demonstration of the system, give an overview of its design and architecture, describe the challenges and difficulties in generating valid Texinfo code automatically, and finally put some emphasis on the currently remaining problems and deficiencies.}