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

Can DragonFlyBSD's HAMMER Compete With Btrfs, ZFS?

Michael Larabel

Published on 7 January 2011
Written by Michael Larabel
Page 1 of 3 - 29 Comments

The most common Linux file-systems we talk about at Phoronix are of course Btrfs and EXT4 while the ZFS file-system, which is available on Linux as a FUSE (user-space) module or via a recent kernel module port, gets mentioned a fair amount too. When it comes to the FreeBSD and PC-BSD operating systems, ZFS is looked upon as the superior, next-generation option that is available to BSD users. However, with the DragonFlyBSD operating system there is another option: HAMMER. In this article we are seeing how the performance of this original creation within the DragonFlyBSD project competes with ZFS, UFS, EXT3, EXT4, and Btrfs.

HAMMER is a file-system created by the DragonFlyBSD developers themselves and is the default choice when installing this BSD operating system, but UFS remains a choice too. The one sentence description about this file-system is that "[HAMMER] provides instant crash recovery, multi-volume file systems, integrity checking, fine grained history/undo, networked mirroring, and historical snapshots." HAMMER uses no fsck, can be sized up to one Exabyte, supports up to 256 volumes of four petabytes in size, coarse-grained history provided by snapshots with up to sixty days history, live snapshot access, and data/meta-data is CRC-checked. Like Btrfs, HAMMER snapshots can be taken at any time, can be accessed live, and boasts a similar set of features. Other HAMMER file-system features include the ability to split it up into multiple pseudo file-systems, there is support for back-up pseudo file-systems, NFS-exportable snapshots, and there is support for slave-to-slave mirroring streams.

The HAMMER file-system has been available since DragonFlyBSD 1.11 while it was made official with DragonFlyBSD 2.0 in 2008. While it's not common for us to benchmark or write about DragonFlyBSD, a request came in recently to benchmark the HAMMER file-system so we found this another good opportunity to test out the latest Phoronix Test Suite 3.0 "Iveland" and OpenBenchmarking.org capabilities. DragonFlyBSD 2.8.2 (the latest release) was benchmarked in both HAMMER and UFS configurations in a stock configuration. PC-BSD was then tested with ZFS and UFS; finally, Ubuntu 10.10 was then run with the EXT3, EXT4, and Btrfs file-systems.

DragonFlyBSD still uses a uni-processor kernel configuration by default and when we had used the SMP kernel atop DragonFlyBSD 2.8.2 (and later also built a x86_64 SMP kernel configuration from the 2.9-development code), the SMP performance under our setup was actually much slower than with its UP kernel. As a result, we used the stock DragonFlyBSD UP kernel and when benchmarking PC-BSD and Ubuntu we disabled the SMP support there.

The test system was a Lenovo ThinkPad T61 notebook with an Intel Core 2 Duo T9300 processor, 4GB of system memory, a 100GB Hitachi HTS72201 SATA HDD, and NVIDIA Quadro NVS 140M graphics. The 64-bit versions of DragonFlyBSD 2.8.2, PC-BSD 8.1, and Ubuntu 10.10 were the operating systems used for this file-system benchmarking.

The disk/file-system tests from the Phoronix Test Suite included BlogBench, Gzip, PostMark, Unpack Linux, and Threaded I/O Tester as they are compatible with both Linux and BSD operating systems.

<< Previous Page
1
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. Ondemand vs. Performance CPU Governing For AMD FX CPUs On Linux 3.17
  2. How Intel Graphics On Linux Compare To Open-Source AMD/NVIDIA Drivers
  3. The Fastest NVIDIA GPUs For Open-Source Nouveau With Steam Linux Gaming
  4. Testing For The Latest Linux Kernel Power Regression
Latest Linux News
  1. Trying Intel OpenCL On Linux For Video Encoding
  2. GSoC 2014 Yielded Some Improvements For Mesa/X.Org This Year
  3. webOS Lives On As LuneOS With New Release
  4. Marek Lands Radeon Gallium3D HyperZ Improvements
  5. Mozilla Firefox 32 Surfaces With HTML5, Developer Changes
  6. Nouveau X.Org Driver Released With DRI3+Present, Maxwell, GLAMOR
  7. Microsoft & AMD Release C++ AMP Compiler With Linux Support
  8. AMD, Wine & Valve Dominated August For Linux Users
  9. Linux 3.17-rc3 Kernel Released Back On Schedule
  10. Lennart Poettering Talks Up His New Linux Vision That Involves Btrfs
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