Opened 14 years ago
Last modified 13 years ago
#5294 closed defect
VirtualBox performance is much worse when Intel VT-x is enabled — at Version 1
| Reported by: | Michał Gołębiowski | Owned by: | |
|---|---|---|---|
| Component: | other | Version: | VirtualBox 3.0.8 |
| Keywords: | intel, vt, vt-x, virtualization, 64, 32 | Cc: | |
| Guest type: | Windows | Host type: | Linux |
Description (last modified by )
I have Dell Latitude E6500 with P8600 CPU. When I run my Windows XP guest on VirtualBox OSE without virtualization VT-x option inactive it runs much faster than in the case I turn it on. It is really visible - with VT-x on I even see how screen flickers during the boot process.
I did Peacekeeper tests in Firefox and I got these results:
- VT-x off, 3D support off - 1596
- VT-x off, 3D support on - 1679
- VT-x on, 3D support off - 900
- VT-x on, 3D support on - 1314
Google Chrome behaves even more strange - with VT-x off it runs faster than Firefox, while with VT-x on it runs *VERY* slow but looses no frames in graphic tests and it finally gets about 8800 points.
I checked both on OSE version and a closed one. My OS is 64-bit Ubuntu Karmic. For more information, see here: https://bugs.launchpad.net/bugs/455112
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