The Linux Trace Toolkit
As this article has shown, LTT is an effective tool for recording critical system information. Moreover, it is rather simple to use and the information presented is accessible to a large portion of the community. In an academic environment, LTT can be used in a course on operating systems, helping students get first hand experience with a live operating system and how it interacts with different applications.
Given its capabilities, modularity, extensibility and minimal overhead, we hope to see the tracing code become part of the mainstream Linux kernel soon (maybe not in 2.3/2.4 currently in feature freeze, but in the next development branch). Another possible application for LTT, which gathered a lot of interest, is to use it as part of a security auditing system with Tripwire-type capabilities. At the time of this writing, the authors know of at least one Linux distribution which plans to include LTT as part of their standard distribution.
Karim Yaghmour (email@example.com) is an operating system freak. He's been playing around with OS internals for quite a while and has even written his own OS. He's currently completing his master's degree at the Ecole Polytechnique de Montréal, where the Linux Trace Toolkit is part of his research. He started his own consulting company, Opersys, Inc., that specializes in operating systems (http://www.opersys.com/) and offers expertise and courses on Linux internals and real-time derivatives.
Michel Dagenais (firstname.lastname@example.org) is a professor at Ecole Polytechnique de Montréal. He has authored or co-authored a large number of scientific publications in the fields of software engineering, structured documents on the Web and object-oriented distributed programming for collaborative applications.
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