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. AMD Launches New FX CPUs, Cuts Prices On Existing Processors
  2. Preview: AMD's FX-9590 Eight-Core At Up To 5.0GHz On Linux
  3. Intel Launches The Core i7 5960X, Mighty Powerful Haswell-E CPUs
  4. AMD Radeon R9 290: Gallium3D vs. Catalyst Drivers
Latest Linux Articles
  1. LLVM Clang 3.5 Brings Some Compiler Performance Improvements
  2. Ondemand vs. Performance CPU Governing For AMD FX CPUs On Linux 3.17
  3. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  4. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
Latest Linux News
  1. New Group Calls For Boycotting Systemd
  2. The Features To Find With The Imminent Release Of LLVM/Clang 3.5
  3. Borderlands 2 Is Coming To Linux
  4. The Witcher 2 Ups The Performance More & Works Around Catalyst Bug
  5. Running Gallium3D's LLVMpipe On The Eight-Core 5GHz CPU
  6. Trying Intel OpenCL On Linux For Video Encoding
  7. GSoC 2014 Yielded Some Improvements For Mesa/X.Org This Year
  8. webOS Lives On As LuneOS With New Release
  9. Marek Lands Radeon Gallium3D HyperZ Improvements
  10. Mozilla Firefox 32 Surfaces With HTML5, Developer Changes
Latest Forum Discussions
  1. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
  2. nv and xorg.conf under Debian PPC
  3. AMD graphics doesn't work with AMD Catalyst drivers
  4. Best Radeon for a Power Mac G5?
  5. The dangers of Linux kernel development
  6. Updated and Optimized Ubuntu Free Graphics Drivers
  7. AMD Releases UVD Video Decode Support For R600 GPUs
  8. SSD seems slow