VirtualBox

Ticket #7113 (closed defect: obsolete)

Opened 4 years ago

Last modified 5 months ago

excessive load on host after upgrading from 3.1 to 3.2

Reported by: costing Owned by:
Priority: major Component: other
Version: VirtualBox 3.2.6 Keywords: host load
Cc: Guest type: Linux
Host type: Linux

Description (last modified by frank) (diff)

Host: Ubuntu 10.04, 16 cores, 32GB

13 Guests, various types of Linux

With all versions of 3.1 the load on host was mostly around 0.5 with spikes when the guests were active.

After upgrading to 3.2 the load has suddenly increased to 5+. The step on the attached chart is exactly at the hour I've upgraded VB. I went through all 3.2 releases but the load is always high. The guests are doing exactly what they did before, but even when idle the CPU SYS component is high in the guests (70-80%), and the corresponding host processes also use quite a lot of CPU.

I've tried even binding the host processes on particular CPUs using taskset but it doesn't change anything on the charts.

I'm attaching the history of load and of the CPU usage on the host. If you need more details please let me know.

Attachments

vb32_load.png Download (67.1 KB) - added by costing 4 years ago.
load on host, before and after the upgrade
vb32_cpu_usage.png Download (115.4 KB) - added by costing 4 years ago.
cpu usage on host, before and after the upgraed
VBox.log Download (40.2 KB) - added by costing 4 years ago.
one of the log files

Change History

Changed 4 years ago by costing

load on host, before and after the upgrade

Changed 4 years ago by costing

cpu usage on host, before and after the upgraed

Changed 4 years ago by costing

one of the log files

comment:1 Changed 5 months ago by frank

  • Status changed from new to closed
  • Resolution set to obsolete
  • Description modified (diff)
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