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 2 of 7 - 27 Comments

Starting with our basic Apache server benchmark, there is a big hit taken when switching to virtualization from running this web-server on the host itself. This though is not too much of a surprise, but between KVM and VirtualBox 3.2/4.0 there is not a huge delta. VirtualBox 4.0 Beta 2 was the fastest with being approximately 12% faster than the Kernel-based Virtual Machine.

With SQLite, VirtualBox was much faster than KVM and even the host operating system, but this is particularly troubling. Running SQLite was over 80% faster running under VirtualBox than on the host operating system itself. We have seen this before... QEMU/KVM even was like this before. We ended up reporting it and getting it resolved, as Matthew Tippett talked about during the Southern California Linux Expo with The Five Stages of Benchmark Loss. At least as far as the default configuration is concerned, VirtualBox is not properly obeying disk sync requests. Therefore, VirtualBox may be reporting much faster numbers, but your data is potentially at risk in the VM with a default VirtualBox configuration.

With PostMark, VirtualBox 4.0 Beta 2 is also faster than the system host itself. It is actually "faster" than VirtualBox 3.2.12 where the appropriate behavior is to perform slower than the host is, so the default disk behavior with VirtualBox 4.0 may have actually become worse. The KVM number is appropriate at around 47% the speed of the host.

When running FS-Mark with 1000 files of 1MB size where sync/fsync is supposed to be used, VirtualBox is again much faster than the host.

Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Running Fedora 20 On Intel's Core i7 Haswell-E Platform
  2. A Tour Of The New Phoronix Office
  3. 7-Way Linux Desktop Gaming Comparison On Ubuntu 14.10
  4. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
Latest Linux News
  1. The Gestures Support Of GNOME 3.14
  2. Linux 3.17 Has Basic Support For The Xbox One Controller
  3. openSUSE 13.2 Beta Still Using Btrfs By Default, & KDE Plasma 5 For Testing
  4. GTK+ 3.14 Brings Much Better Wayland Support, Multi-Touch, New Theme
  5. DisplayPort Comes To USB's Type-C Connector
  6. NSS Updated On Ubuntu 12.04/14.04 To Allow Netflix Support
  7. Linux 3.17-rc6 Released; Linux 3.17 Final Might Come In One Week
  8. X.Org Server 1.16.1 Released
  9. Mesa Gets Closer To Having OpenGL 4.0 Tessellation Support
  10. Uselessd: A Stripped Down Version Of Systemd
Latest Forum Discussions
  1. State of Nouveau now and in the near future?
  2. Uselessd: A Stripped Down Version Of Systemd
  3. Wasteland 2 Officially Launched Today, Including For Linux Gamers
  4. NVIDIA GTX 770/780 -works ?
  5. New stress testing utility for GPU's
  6. How to get Catalyst 14.4 working on Ubuntu 14.04
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. X.Org Women Outreach Program Only Turns Up Two Applicants So Far