Mathieu Desnoyers is the maintainer of the Linux Trace Toolkit (LTT) project since November 2005, taking over the development with LTTng. He is the author of Linux Trace Toolkit Next Generation (LTTng) and the main developer of Linux Trace Toolkit Viewer (LTTV) since the project started in 2003. He interned at IBM Research in 2006 and Google in 2007, where he deployed LTTng. He is the author of the Linux Kernel Markers and of the Kernel Tracepoints. He is currently completing a Ph.D. in Computer Engineering at Ecole Polytechnique de Montréal.
This presentation/discussion would try to address two problems: how to trace userland efficiently without going through a system call each time instrumentation is hit and how to statically instrument the userland applications so tracing can be dynamically activated system-wide at runtime.
It contains these subtopics: