U-Net: a user-level network interface for parallel and distributed computing
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
High performance messaging on workstations: Illinois fast messages (FM) for Myrinet
Supercomputing '95 Proceedings of the 1995 ACM/IEEE conference on Supercomputing
IO-Lite: a unified I/O buffering and caching system
ACM Transactions on Computer Systems (TOCS)
The Virtual Interface Architecture
IEEE Micro
Obtaining High Performance for Storage Outsourcing
FAST '02 Proceedings of the Conference on File and Storage Technologies
A Performance Analysis of the iSCSI Protocol
MSS '03 Proceedings of the 20 th IEEE/11 th NASA Goddard Conference on Mass Storage Systems and Technologies (MSS'03)
MSS '03 Proceedings of the 20 th IEEE/11 th NASA Goddard Conference on Mass Storage Systems and Technologies (MSS'03)
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
Storage Over IP: When Does Hardware Support Help?
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
ATEC '96 Proceedings of the 1996 annual conference on USENIX Annual Technical Conference
End system optimizations for high-speed TCP
IEEE Communications Magazine
Design, implementation and evaluation of security in iSCSI-based network storage systems
Proceedings of the second ACM workshop on Storage security and survivability
Study on the data flow balance in NFS server with iSCSI
ICA3PP'12 Proceedings of the 12th international conference on Algorithms and Architectures for Parallel Processing - Volume Part I
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The advent of IP-based storage networking has brought specialized network adapters that directly support TCP/IP and storage protocols on the market to get comparable performance that specialized high-performance storage networking architectures provide.This paper describes an efficient software implementation of the iSCSI protocol with a commodity networking infrastructure. Though several studies have compared the performances of specialized network adapters and commodity network adapters, our iSCSI implementation eliminates data copying overhead unlike straightforward iSCSI implementations used in previous studies. To achieve it, we modified a general-purpose operating system by using techniques studied for improving TCP performance in the literature and features that commodity Gigabit Ethernet adapters support. We also quantified their effects.Our microbenchmarks show, compared with a straightforward iSCSI driver that does not use these techniques, the iSCSI driver with these optimizations reduces CPU utilization from 39.4% to 30.8% when writing with an I/O size of 64 KB. However, when reading, any performance gain is negated due to the high cost of operations on the virtual memory system.