unfortunate configuration makes virtualbox perform poorly
Bug #479440 reported by
5Ub-Z3r0
This bug affects 18 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Won't Fix
|
Medium
|
Unassigned |
Bug Description
Hi,
I've noticed major performance regression working with virtualbox over ubuntu 9.10.
I've tested mainline kernel builds as well as proposed (even 2.6.31-15), but the regression was still here.
After some debug, I've found the problem in some changes made to the kernel configuration between jaunty and karmic.
In particular, recompiling the kernel with PREEMPT=Y (preemptible kernel) and CONFIG_HZ_250=y solves the problem.
I hope it helps,
--
Nicholas
Changed in linux (Ubuntu): | |
assignee: | nobody → Ubuntu Kernel Team (ubuntu-kernel-team) |
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
status: | Confirmed → Triaged |
tags: |
added: regression-release removed: regression-potential |
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might be related to this discussion: www.virtualbox. org/ticket/ 5501
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