Work

IO-Lite: a unified I/O buffering and caching system

Year: 2000

Type: article

Abstract: This article presents the design, implementation, and evaluation of IO -Lite, a unified I/O buffering and caching system for general-purpose operating systems. IO-Lite unifiesallbuffering and caching in the system, to the extent permitted by the hardware. In particular, it allows applications, the interprocess communication system, the file system, the file cache, and the network subsystem to safely and concurrently share a single physical copy of the data. Protection and security are maintained through a combination of access control and read-only sharing. IO-Lite eliminates all copying and multiple buffering of I/O data, and enables various cross-subsystem optimizations. Experiments with a Web server show performance improvements between 40 and 80% on real workloads as a result of IO-Lite.

Source: ACM Transactions on Computer Systems

DOI: 10.1145/332799.332895

Authors: Vivek S. Pai, Peter Druschel, Willy Zwaenepoel

Institution: Rice University

Language: English

Topic: Advanced Data Storage Technologies

Subfield: Computer Networks and Communications

Field: Computer Science

Domain: Physical Sciences

Open Access status: bronze

Funder: National Science Foundation

Awards: ScalaServer: System Support for Scalable Network Servers, CAREER: A Communication-Oriented Operating Systems for the National Information Infrastructure (Career Development Program), Reliable Main-Memory Storage Systems