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

Linux KVM vs. VirtualBox 4.0 Virtualization Benchmarks

Michael Larabel

Published on 13 December 2010
Written by Michael Larabel
Page 7 of 7 - 27 Comments

The NAS Parallel Benchmarks (NPB) from NASA is always interesting with their very efficient OpenMP-based multi-threaded tests written in FORTRAN. Running the IS.C test set in a virtual machine costs about 30% of the performance at least for the Intel Core i7, but there was virtually no change in performance between KVM and VirtualBox.

While the NPB IS.C performance was indifferent between KVM and VirtualBox, with NPB LU.A, KVM with the Linux 2.6.35 kernel in Ubuntu 10.10 was 20% faster than the latest stable VirtualBox release.

Lastly, with the NAS Parallel UA.A test configuration, KVM was 40% faster than VirtualBox 3.2.12 on this twelve-thread Intel 64-bit system.

In a majority of the benchmarks used that were mostly CPU oriented, the Kernel-based Virtual Machine was measurably faster than VirtualBox 3.2.12 and VirtualBox 4.0 Beta 2. The only area where VirtualBox decisively pulled in front of KVM was with the disk benchmarks, but it's a situation where VirtualBox by default isn't obeying sync/fsync requests made within the guest, so it's numbers are shown as even being faster than the host operating system, but it comes with potential data integrity issues.

While VirtualBox may be slower than KVM in many areas, VirtualBox does provide 2D and 3D acceleration support to guests, among other features, not currently offered by KVM/QEMU.

As far as the VirtualBox 4 performance goes, in many areas right now its performance with the just-released Oracle VM VirtualBox 4.0 Beta 2 is slower than VirtualBox 3.2.12. However, it is a beta release not intended for use in a production capacity and we will be back with more VirtualBox 4.0 benchmarks upon the program's final release to see whether these regressions are still present or how the performance shakes down.

7
Next Page >>
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. Btrfs On 4 x Intel SSDs In RAID 0/1/5/6/10
  2. AMD Radeon R9 290 On Ubuntu 14.10: RadeonSI Gallium3D vs. Catalyst
  3. MSI X99S SLI PLUS On Linux
  4. NVIDIA GeForce GTX 970 Offers Great Linux Performance
Latest Linux Articles
  1. NVIDIA's Linux Driver Can Deliver Better OpenGL Performance Than Windows 8.1
  2. Windows 8.1 vs. Ubuntu 14.10 With Intel HD Graphics
  3. 6-Way Ubuntu 14.10 Radeon Gallium3D vs. Catalyst Driver Comparison
  4. NVIDIA vs. Nouveau Drivers On Ubuntu 14.10
Latest Linux News
  1. Wine 1.7.30 Continues Work On DirectWrite & Offers Regedit Fixes
  2. Has The Sky Fallen? Qualcomm Contributes To Freedreno's DRM/KMS Driver
  3. Manjaro Works To Make Calamares A Distribution-Independent Installer
  4. DisplayLink USB 3.0 Support Sounds Like A Mess
  5. PulseAudio Gains A Native Bluetooth Headset Backend
  6. X.Org Foundation Decides On Its Women Outreach Project
  7. GTK+ 3.16's New GtkGLArea Widget Gets Improved
  8. X.Org Server 1.17 ABI Bumped
  9. Fedora 21 Beta To Be Released Next Week
  10. Go 1.4 Beta Release Brings Big Runtime Changes
Latest Forum Discussions
  1. How to get rid of Linux
  2. Closed source to opensource
  3. What Would You Like To See Next?
  4. Is foolish currently develop in machine code, hexadecimal and assembly?
  5. Reducing The CPU Usage In Mesa To Improve Performance
  6. Help diagnosing problems with a Readon HD 4670 on Mesa 10.3.2-1
  7. Advertisements On Phoronix
  8. nv and xorg.conf under Debian PPC