Failure-oblivious computing is a technique that enables computer programs to continue executing despite memory errors. The technique handles attempts to read invalid memory by returning a manufactured value to the program, and it ignores invalid writes. This is a great contrast to typical memory checkers, which inform the program of the error or abort the program. In failure-oblivious computing, no attempt is made to inform the program that an error occurred.[1]
The approach has performance costs: because the technique rewrites code to insert dynamic checks for address validity, execution time will increase by 80% to 500%.[2]
[edit] References
- ^ Rinard, Martin; Cadar, Cristian; Dumitran, Daniel; Roy, Daniel M.; Leu, Tudor; Beebee, William S. (2004), "Enhancing server availability and security through failure-oblivious computing", Proceedings of the 6th conference on Symposium on Operating Systems Design & Implementation, 6, Berkeley, CA: USENIX Association, http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.68.9926&rep=rep1&type=pdf
- ^ Keromytis, Angelos D. (2007), "Characterizing Software Self-Healing Systems", in Gorodetski, Vladimir I.; Kotenko, Igor; Skormin, Victor A., Computer network security: Fourth International Conference on Mathematical Methods, Models, and Architectures for Computer Network Security, Springer, ISBN 3540739858, http://books.google.com/books?id=N2uIjckxHSoC&pg=PA27&dq=failure-oblivious&hl=en&ei=gmlSTc7aD4nUvQPZwMXPCQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CCkQ6AEwAQ#v=onepage&q=failure-oblivious&f=false
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