The best ways to get in touch with me are by e-mail at griffin2@ece.cmu.edu or by cell phone at +1-412-425-3550. I work as an instructor and research scientist with a Maryland government contractor by day, and as an assistant research professor with the Department of Computer Science at The Johns Hopkins University in Baltimore by night.

You may be looking for one of these pages:

• The Memulator 3.0 source and dissertation-experimental framework, now available due to popular demand! This includes my rewrite (memulator.c) of the scsi_target.c example target-mode driver software for FreeBSD.
• The nuclear science merit badge
• The computer systems Ph.D. job search

Or, perhaps you're looking for one of these publications:

Mnikr: Reputation Construction Through Human Trading of Distributed Social Identities
Brendan Francis O'Connor and John Linwood Griffin. Presented at the 5th ACM Workshop on Digital Identity Management (DIM'09), Chicago, Illinois, November 13, 2009.

XenSocket: A High-Throughput Interdomain Transport for Virtual Machines
Xiaolan Zhang, Suzanne McIntosh, Pankaj Rohatgi, and John Linwood Griffin. In Proceedings of the 8th International Middleware Conference, pp. 184-203, Newport Beach, California, November 26-30, 2007. (slides)

Timing-accurate storage emulation: Evaluating hypothetical storage components in real computer systems
John Linwood Griffin. Doctoral dissertation, Technical Report CMU-PDL-04-108, Carnegie Mellon University Parallel Data Laboratory, Pittsburgh, Pennsylvania, September 2004.

On the feasibility of intrusion detection inside workstation disks
John Linwood Griffin, Adam Pennington, John S. Bucy, Deepa Choundappan, Nithya Muralidharan, and Gregory R. Ganger. Technical Report CMU-PDL-03-106, Carnegie Mellon University Parallel Data Laboratory, Pittsburgh, Pennsylvania, December 2003.

Storage-based Intrusion Detection: Watching storage activity for suspicious behavior
Adam G. Pennington, John D. Strunk, John Linwood Griffin, Craig A. N. Soules, Garth R. Goodson, and Gregory R. Ganger. In Proceedings of the 12th USENIX Security Symposium, pp. 137-152, Washington, DC, August 4-8, 2003.

Timing-accurate Storage Emulation
John Linwood Griffin, Jiri Schindler, Steven W. Schlosser, John S. Bucy, and Gregory R. Ganger. In Proceedings of the FAST '02 Conference on File and Storage Technologies, pp. 75-88, Monterey, California, January 28-30, 2002.

Track-Aligned Extents: Matching Access Patterns to Disk Drive Characteristics (Best Student Paper Award)
Jiri Schindler, John Linwood Griffin, Christopher R. Lumb, and Gregory R. Ganger. In Proceedings of the FAST '02 Conference on File and Storage Technologies, pp. 259-274, Monterey, California, January 28-29, 2002.

Designing Computer Systems with MEMS-based Storage
Steven W. Schlosser, John Linwood Griffin, David F. Nagle, and Gregory R. Ganger. In Proceedings of the 9th International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS-IX), pp. 1-12, Boston, Massachusetts, November 12-15, 2000.

Operating System Management of MEMS-based Storage Devices
John Linwood Griffin, Steven W. Schlosser, Gregory R. Ganger, and David F. Nagle. In Proceedings of the 4th Symposium on Operating Systems Design and Implementation (OSDI 2000), pp. 227-242, San Diego, California, October 23-25, 2000.

Modeling and Performance of MEMS-Based Storage Devices
John Linwood Griffin, Steven W. Schlosser, Gregory R. Ganger, and David F. Nagle. In Proceedings of the ACM SIGMETRICS 2000 International Conference on Measurement and Modeling of Computer Systems, Santa Clara, California, June 18-21, 2000. Published as Performance Evaluation Review 28(1):56-65.

Filling the Memory Access Gap: A Case for On-Chip Magnetic Storage
Steven W. Schlosser, John Linwood Griffin, David F. Nagle, and Gregory R. Ganger. Technical Report CMU-CS-99-174, Carnegie Mellon University School of Computer Science, Pittsburgh, Pennsylvania, November 1999.

Testing Protocol Implementation Robustness
John Linwood Griffin. In Proceedings of FTCS-29: Student Papers, pp. 11-13, Madison, Wisconsin, June 15-18, 1999.

a boy, a dog and a frog
John Griffin. In the literary magazine Fragments 83, vol. I, published by the Heidelberg TAG Association, Heidelberg, Germany, February 1983. Based on original artwork by Mercer Mayer.