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

Bcache For The Linux Kernel Might Finally Be Ready

Linux Kernel

Published on 15 January 2013 01:09 AM EST
Written by Michael Larabel in Linux Kernel
7 Comments

It's been a long time coming, but Bcache might finally be merged soon into the mainline Linux kernel. Bcache provides a block-layer SSD cache for Linux with write-back and write-through support for solid-state drives.

Bcache allows for one or more solid-state drives (SSDs) to act as a cache for slower rotational hard disk drives. Write-back and write-through caching models are supported by Bcache while also working at the block level so it supports any file-system, unlike L2Arc with the ZFS file-system.

It's been nearly one year since last having anything to write about with Bcache, but following some progress over the winter holiday, the support might finally soon its way into the mainline Linux kernel.

Kent Overstreet, the principal Bcache developer, wrote on the kernel mailing list, "Over the Christmas break I finally got the tree into a self contained state that ought to be suitable for merging; this tree is fairly close to the previous stable tree that people have been running on production servers for awhile (and that I've been running on this workstation), So, I think this is ready for mainline and I'd like to get it in..."

For more information on Linux Bcache, see its Wiki page.

In related news, you might also want to read about EnhanceIO for SSD caching on Linux. EnhanceIO is commercial code recently opened up and based upon Facebook's Flashcache for providing similar functionality to Bcache. EnhanceIO is also open-source (GPL-licensed) and has mainline Linux kernel ambitions.

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 News
  1. NVIDIA's Proprietary Driver Is Moving Closer With Kernel Mode-Setting
  2. The Latest Linux Kernel Git Code Fixes The EXT4 RAID0 Corruption Problem
  3. Features Added To Mesa 10.6 For Open-Source GPU Drivers
  4. Ubuntu's LXD vs. KVM For The Linux Cloud
  5. Fedora Server 22 Benchmarks With XFS & The Linux 4.0 Kernel
  6. GCC 6 Gets Support For The IBM z13 Mainframe Server
  7. Fedora 22 Is Being Released Next Tuesday
  8. OpenWRT 15.05 Preparing Improved Security & Better Networking
  9. Using The New LLVM/Clang OpenMP Support
  10. Zapcc Claims To Be A "Much Faster C++ Compiler"
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. The Linux 4.0 EXT4 RAID Corruption Bug Has Been Uncovered
  3. AMDGPU Open-Source Driver Code Continues Maturing
  4. Microsoft Open-Sources The Windows Communication Foundation
  5. Another HTTPS Vulnerability Rattles The Internet
  6. LibreOffice 5.0 Open-Source Office Suite Has Been Branched
  7. Systemd 220 Has Finally Been Released
  8. Will Ubuntu Linux Hit 200 Million Users This Year?