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ACM Transactions on Computer Systems (TOCS), Volume 29 Issue 2, May 2011

DieCast: Testing Distributed Systems with an Accurate Scale Model
Diwaker Gupta, Kashi Venkatesh Vishwanath, Marvin McNett, Amin Vahdat, Ken Yocum, Alex Snoeren, Geoffrey M. Voelker
Article No.: 4
DOI: 10.1145/1963559.1963560

Large-scale network services can consist of tens of thousands of machines running thousands of unique software configurations spread across hundreds of physical networks. Testing such services for complex performance problems and configuration...

Management of Multilevel, Multiclient Cache Hierarchies with Application Hints
Gala Yadgar, Michael Factor, Kai Li, Assaf Schuster
Article No.: 5
DOI: 10.1145/1963559.1963561

Multilevel caching, common in many storage configurations, introduces new challenges to traditional cache management: data must be kept in the appropriate cache and replication avoided across the various cache levels. Additional challenges are...

Application-Tailored I/O with Streamline
Willem de Bruijn, Herbert Bos, Henri Bal
Article No.: 6
DOI: 10.1145/1963559.1963562

Streamline is a stream-based OS communication subsystem that spans from peripheral hardware to userspace processes. It improves performance of I/O-bound applications (such as webservers and streaming media applications) by constructing tailor-made...