Hardware and software support for efficient exception handling
ASPLOS VI Proceedings of the sixth international conference on Architectural support for programming languages and operating systems
U-Net: a user-level network interface for parallel and distributed computing
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
The design and implementation of the 4.4BSD operating system
The design and implementation of the 4.4BSD operating system
Architecture and implementation of MEMORY CHANNEL 2
Digital Technical Journal
Improving I/O performance with a conditional store buffer
MICRO 31 Proceedings of the 31st annual ACM/IEEE international symposium on Microarchitecture
A cost-effective, high-bandwidth storage architecture
Proceedings of the eighth international conference on Architectural support for programming languages and operating systems
UTLB: a mechanism for address translation on network interfaces
Proceedings of the eighth international conference on Architectural support for programming languages and operating systems
Design challenges of virtual networks: fast, general-purpose communication
Proceedings of the seventh ACM SIGPLAN symposium on Principles and practice of parallel programming
Experiences with VI communication for database storage
ISCA '02 Proceedings of the 29th annual international symposium on Computer architecture
User-Level DMA without Operating System Kernel Modification
HPCA '97 Proceedings of the 3rd IEEE Symposium on High-Performance Computer Architecture
Incorporating Memory Management into User-Level Network Interfaces
Incorporating Memory Management into User-Level Network Interfaces
Architectural support for user-level input/output
Architectural support for user-level input/output
Profiling Interrupt Handler Performance through Kernel Instrumentation
ICCD '03 Proceedings of the 21st International Conference on Computer Design
Evaluation of compound system calls in the Linux kernel
ACM SIGOPS Operating Systems Review
Providing safe, user space access to fast, solid state disks
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
The nonkernel: a kernel designed for the cloud
Proceedings of the 4th Asia-Pacific Workshop on Systems
UCC '13 Proceedings of the 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing
| Hi-index | 14.98 |
To address the growing I/O bottleneck, next-generation distributed I/O architectures employ scalable point-to-point interconnects and minimize operating system overhead by providing user-level access to the I/O subsystem. Reduced I/O overhead allows I/O intensive applications to efficiently employ latency hiding techniques for improved throughput. This paper presents the design of a novel scalable user-level I/O architecture and evaluates the impact of various architectural mechanisms in terms of overall performance improvement. Results demonstrate that eliminating data movement across protection domains is the dominant contributor to improved scalability. Eliminating system call and interrupt overhead only has a small additional benefit that may not justify the additional hardware support required. While this evaluation is based on one specific design, the conclusions can be generalized to other user-level I/O architectures.