Distributed Shared Files Management

Shared files: The retrieval perspective

Distributed Shared Memory Management for Java

Jackal is a fine-grained distributed shared memory system that can run multithreaded Java programs on distributedmemory systems. The Jackal compiler generates an access check for every use of an object field or array element. The overhead of the access checks is reduced using compiler optimizations. The runtime system uses a homebased consistency protocol that manages (and caches) objects and a...

Data management in Distributed Shared Virtual Worlds

Research efforts in Virtual Worlds domain have been mainly devoted to user interfaces, communication supports and consistency issues. To the best of our knowledge, no works clearly focused on the global problem of managing virtual world’s data. The promise of future large persistent virtual worlds, evolving during a long period of time and with large number of participants makes the question of...

Scheduling shared scans of large data files

We study how best to schedule scans of large data files, in the presence of many simultaneous requests to a common set of files. The objective is to maximize the overall rate of processing these files, by sharing scans of the same file as aggressively as possible, without imposing undue wait time on individual jobs. This scheduling problem arises in batch data processing environments such as Ma...

Monitoring Access to Shared Memory-Mapped Files

The post-mortem state of a compromised system may not contain enough evidence regarding what transpired during an attack to explain the attacker’s modus operandi. Current systems that reconstruct sequences of events gather potential evidence at runtime by monitoring events and objects at the system call level. The reconstruction process starts with a detection point, such as a file with suspici...