1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

USB Attached SCSI (UAS) Is Now Working Under Linux

Linux Kernel

Published on 17 June 2014 05:18 AM EDT
Written by Michael Larabel in Linux Kernel
4 Comments

With the recently released Linux 3.15 kernel is support for UAS. USB Attached SCSI will allow for significantly faster performance out of UAS-supported USB drive enclosures.

Hans de Goede of Red Hat has been one of the developers who got the UAS driver support into shape for Linux 3.15. USB Attached SCSI is a protocol for USB HDDs / SSDs / flash drives that use the SCSI command set and generally allow for much faster transfer speeds than traditional USB mass storage drives. UAS was introduced with the USB 3.0 specification, but not all USB 3.0 rated drive enclosures, etc currently on the market have UAS support.

With the Linux 3.15 kernel the UAS driver should be in good shape along with XHCI streams support. I don't have any UAS drive enclosures right now for being able to benchmark the performance and support under Linux, but when I get my hands on such hardware, there will be USB Attached SCSI Linux tests on Phoronix.

With Linux 3.15 is also USB 3.0 bulk streams support from user-space using USBFS. With the upcoming QEMU 2.1 release, the USB 3 bulk streams support will be taken advantage of with its USB 3 redirection support to offer full USB 3.0 compatibility.

More details on these recent Linux USB support improvements can be found via Hans de Goede's blog.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. AMD R600g/RadeonSI Performance On Linux 3.16 With Mesa 10.3-devel
  2. Intel Pentium G3258 On Linux
  3. SilverStone Precision PS10
  4. ASRock Z97 Extreme6
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Open-Source AMD Hawaii Support Should Now Be Working!
  2. KDE Developers Continue Working Toward Wayland Support
  3. Ubuntu 14.04.1 LTS Released
  4. Linux Developers Jump Quickly On ACPI 5.1, Helps Out ARM
  5. Pkg 1.3.0 Released To Improve Package Management On FreeBSD
  6. GOG.com Officially Starts Rolling Out Linux Games
  7. Fedora 21 Has Been Delayed By Three Weeks
  8. Mono Begins To Focus On Performance, Assembles A Team
  9. Oracle Linux 7 Released Today As Its RHEL7 Clone
  10. Unigine Develops City Traffic System, A Driving Simulator
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  3. Radeon related kernel bug??
  4. how the US intellegentia operates:
  5. AMD Publishes Open-Source Linux HSA Kernel Driver
  6. Next-Gen OpenGL To Be Announced Next Month
  7. Open-Source Radeon Performance Boosted By Linux 3.16
  8. Remote gui not accessible in Phoronix Test Suite 5.2