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 Benchmarking Platform
Phoromatic Test Orchestration

RapidDisk, A New Linux RAM Disk Kernel Module

Linux Kernel

Published on 04 August 2011 08:45 AM EDT
Written by Michael Larabel in Linux Kernel
5 Comments

Released last month was RapidDisk 1.0, which is a Linux kernel module that up to this point has received little attention on the Internet. RapidDisk is a new Linux RAM disk kernel module like the brd and zram modules, but with a different feature-set.

Petros Koutoupis is the developer of RapidDisk (also known as rxdsk) is designed for high-performance computing while being designed to be simple. RapidDisk can handle dynamically adding or removing RAM-based block devices of varying sizes, LZO data compression (still being implemented), and SHA-256-based error-correction.

RapidDisk is meant to be used for quick I/O storage (such as using a solid-state drive for the RapidDisk), application/database caching, file-system meta-data caching, virtualization, and as possible replacements to CompCache and CacheFS. RapidDisk volumes can also be easily exported as a physical device across a SAN or allocated as a SWAP space.

This kernel module isn't living in the mainline kernel tree (at least not for now), but is licensed under the GNU GPLv2 and its user-land utility goes for the GPLv3 license. More information on RapidDisk can be found from the 1.0 blog announcement and the project's Wiki.

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 Articles & Reviews
  1. Radeon Linux Benchmarks: Catalyst 15.3 Beta vs. Linux 4.0 + Mesa 10.6-devel
  2. Trying Out The Modern Linux Desktops With 4 Monitors + AMD/NVIDIA Graphics
  3. Turning A Basement Into A Big Linux Server Room
  4. NVIDIA's $1000+ GeForce GTX TITAN X Delivers Maximum Linux Performance
  5. OS X 10.10 vs. Ubuntu 15.04 vs. Fedora 21 Tests: Linux Sweeps The Board
  6. The New Place Where Linux Code Is Constantly Being Benchmarked
Latest Linux News
  1. Debian 8.0 Jessie Gets A Release Date
  2. Firefox 37 Coming Today With Heartbeat, HTTPS Bing
  3. OpenIndiana 2015.03 Updates Its Solaris/Illumos Environment
  4. GNOME 3.16 SDK Runtime Now Available
  5. Initial Intel Braxton Support Might Come To Linux 4.1
  6. Why KDE's KWin Doesn't Integrate Weston/QtCompositor For Wayland Support
  7. Clang Now Supports Targeting The NaCl OS
  8. PC-BSD Updates Its Lumina Desktop (v0.8.3)
  9. Fedora 22 Alpha Now Available For AArch64 & PowerPC64
  10. Systemd Developers Did NOT Fork The Linux Kernel
Most Viewed News This Week
  1. Introducing The Library Operating System For Linux
  2. Improved OpenCL Support For Blender's Cycles Renderer
  3. The Big Features Of The Linux 4.0 Kernel
  4. Open-Source Driver Fans Will Love NVIDIA's New OpenGL Demo
  5. Allwinner Continues Jerking Around The Open-Source Community
  6. GNOME 3.16 Released: It's Their Best Release Yet
  7. Ubuntu 15.04 Final Beta Released
  8. Systemd Change Allows For Stateless Systems With Tmpfs