Histoire de vous mettre dans la peau des gens qui viendront voir ma présentation (je l'espère!) à POPL, voici le résumé soumis et accepté:

Recent research and development on Virtual Machines (VMs), especially for the JavaScript (JS) language, has focused on performance at the expense of flexibility.  Notably, it has hindered our understanding of the run-time behavior of programs by making instrumentation of existing VMs laborious. Past approaches required manual instrumentation of production interpreters, preventing the acquisition of longitudinal data because of the high cost associated with maintaining a modified VM over time.

In this presentation, we will show how it is possible to provide a flexible run-time instrumentation of the object-model and function-calling protocol with a performance comparable to a state-of-the-art interpreter, without having to modify the VM source code. Our approach consists in running a metacircular VM targeting the source language, based on a message-sending object model, on top of another fast VM. An overview of the implementation will be given and early performance numbers will be presented.

Erick