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

Hugepage Block Device Driver Announced For The Linux Kernel

Linux Kernel

Published on 15 June 2014 09:50 AM EDT
Written by Michael Larabel in Linux Kernel
4 Comments

Dr. Greg Wettstein and his dog Izzy have announced the release of the Hugepage Block Device Driver for the Linux kernel.

Greg explains this Hugepage Block Device driver, "The HPD driver implements a dynamically configurable RAM based block device which uses the kernel hugepage infrastructure and magazines to provide the memory based backing for the block devices. It borrows heritage from the existing brd ramdisk code with the primary differences being dynamic configurability and the backing methodology...the HPD driver may offer one of the most useful applications of this [Hugepage] infrastructure. There are obvious advantages in a ramdisk to handling the backing store in larger size units and NUMA support falls out naturally since the hugepage infrastructure is NUMA aware."

In terms of the relevance to the Linux storage industry with this HPD driver, "We have found the driver to be particularly useful in testing our SCST implementation, extensions and infrastructure. It is capable of sustaining line-rate 10+ GBPS throughput which allows target infrastructure to be tested and verified with FIO running in verify mode. The NULLIO target, while fast of course, does not allow verification of I/O since there is no persistent backing. Measured I/O latency on 4K block sizes is approximately five micro-seconds. Based on that Izzy thought we should get this released for our fellow brethren in the storage appliance industry. He suggests that pretty impressive appliance benchmark numbers can be obtained by using an HPD based cache device with bcache in writeback mode..... :-)"

More information on this just-announced block device driver can be found via the kernel mailing list.

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. Intel Pentium G3258 On Linux
  2. SilverStone Precision PS10
  3. ASRock Z97 Extreme6
  4. Nouveau Re-Clocking Is Way Faster, Shows Much Progress For Open-Source NVIDIA
Latest Linux Articles
  1. X.Org Server 1.16 Officially Released With Terrific Features
  2. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  3. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
  4. Linux 3.16 File-System Tests On A Hard Drive
Latest Linux News
  1. GCC 5.0 Is Expected Next Year
  2. PHP5's Successor Might Be PHP7
  3. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  4. AMDKFD Driver Still Evolving For Open-Source HSA On Linux
  5. GStreamer 1.4.0 Released; OpenGL Improvements, New Features
  6. New Intel GLAMOR Code Is Taking Shape & Running Fast
  7. LLVM 3.5 Gets A Tentative Release Date
  8. EFF Aims To Launch An Open Wireless Router
  9. Linux 3.16-rc6 Kernel Released
  10. It's Now Made Easier Porting Jolla's Sailfish OS To New Android Phones
Latest Forum Discussions
  1. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Next-Gen OpenGL To Be Announced Next Month
  4. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  5. AMD Publishes Open-Source Linux HSA Kernel Driver
  6. KDE Plasma 5 Officially Released
  7. Vote For GOG To Make Galaxy Open Source
  8. TSC Problem on Gigabyte GA-X79-UP4 (rev 1.1)