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. The MSI X99S SLI PLUS Is Working & Running Well On Linux
  2. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  3. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  4. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. Radeon DRM Gets New Information Ioctl Queries
  2. Mir 0.8 Works On Less ABI Breakage, Touchspots, Responsiveness
  3. CS:GO For Linux Gains Better Stability, Community Server Support
  4. NVIDIA Issues Updated 340.46 Long-Lived Driver Release
  5. KDE Plasma 5.1 Now In Beta
  6. Systemd & Debian Were Most Popular In September
  7. Microsoft Announces... Windows 10 With A Start Menu
  8. Borderlands 2 Launches On Steam For Linux
  9. Debian Jessie Might Get Rid Of The kFreeBSD Port
  10. Fedora Might Try A New Scheduling Strategy For Its Releases
Latest Forum Discussions
  1. Microsoft Announces... Windows 10 With A Start Menu
  2. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images
  3. Updated and Optimized Ubuntu Free Graphics Drivers
  4. Nero CD/DVD Burning Software On Linux Is Dead
  5. New Group Calls For Boycotting Systemd
  6. FSF Issues Statement On Shellshock Bash Vulnerability
  7. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  8. X.Org Is Looking For Some Female Help