ACM Transactions on Computer Systems (TOCS)
Caching in the Sprite network file system
ACM Transactions on Computer Systems (TOCS)
The design and implementation of a log-structured file system
SOSP '91 Proceedings of the thirteenth ACM symposium on Operating systems principles
Measurements of a distributed file system
SOSP '91 Proceedings of the thirteenth ACM symposium on Operating systems principles
Non-volatile memory for fast, reliable file systems
ASPLOS V Proceedings of the fifth international conference on Architectural support for programming languages and operating systems
I/O issues in a multimedia system
Computer
Techniques for file system simulation
Software—Practice & Experience
The HP AutoRAID hierarchical storage system
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
A trace-driven analysis of the UNIX 4.2 BSD file system
Proceedings of the tenth ACM symposium on Operating systems principles
Long Term Distributed File Reference Tracing: Implementation and Experience
Long Term Distributed File Reference Tracing: Implementation and Experience
A Detailed Simulation Model of the HP 97560 Disk Drive
A Detailed Simulation Model of the HP 97560 Disk Drive
TCON'95 Proceedings of the USENIX 1995 Technical Conference Proceedings
File system logging versus clustering: a performance comparison
TCON'95 Proceedings of the USENIX 1995 Technical Conference Proceedings
Heuristic cleaning algorithms in log-structured file systems
TCON'95 Proceedings of the USENIX 1995 Technical Conference Proceedings
A large-scale study of file-system contents
SIGMETRICS '99 Proceedings of the 1999 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Implementing and Evaluating Jukebox Schedulers Using JukeTools
MSS '03 Proceedings of the 20 th IEEE/11 th NASA Goddard Conference on Mass Storage Systems and Technologies (MSS'03)
PFS: a distributed and customizable file system
IWOOOS '96 Proceedings of the 5th International Workshop on Object Orientation in Operating Systems (IWOOOS '96)
Rump file systems: kernel code reborn
USENIX'09 Proceedings of the 2009 conference on USENIX Annual technical conference
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We have implemented an integrated and configurable file system called the Pegasus fie-systems (PFS) and a trace-driven file-system simulator called Patsy. Patsy is used for off-line analysis of file-system algorithms, PFS is used for on-line file-system data storage. Algorithms are first analyzed in Patsy and when we are satisfied with the performance results, migrated into PFS for on-line usage. Since Patsy and PFS are derived from a common cut-and-paste filesystem framework, this migration proceeds smoothly. We have found this integration quite useful: algorithm bottlenecks have been found through Patsy that could have led to performance degradations in PFS. Off-line simulators are simpler to analyze compared to on-line file-systems because a work load can repeatedly be replayed on the same off-line simulator. This is almost impossible in on-line filesystems since it is hard to provide similar conditions for each experiment run. Since simulator and file-system are integrated (hence, use the same code), experiment results from the simulator have relevance in the real system. This paper describes the cut-and-paste framework, the instantiation of the framework to PFS and Patsy and finally, some of the experiments we conducted in Patsy.