The FreeBSD operating system more than doubled in size between version 2 and version 4.
Many changes to primary modularity are easy to spot at a high-leveL For example, new …

We make two observations about communications middleware: first, most middleware are
similar, the differences are in their interfaces and optimizations; second, neither a fixed set of …

Modern computing environments face both low-frequency infrastructural changes, such as
software and hardware upgrades, and frequent changes, such as uctuations in the network …

Recent developments in component technology enable the construction of complex software
systems by assembling off-the-shelf components. However, it is still difficult to develop …

As OS code moves to new settings, it must be continually reshaped. Kernel code however, is
notoriously brittle--a small, seemingly localized change can break disparate parts of the …

Modern, distributed computing systems need to cope continuously with changes. We identify
two kinds of changes: low frequency infrastructural changes, such as software upgrade; and …

This research project seeks to modify resource management in operating systems to
accommodate frequent change. By identifying key technologies and approaches to support …