VirtualBox

Opened 14 years ago

Closed 10 years ago

#7113 closed defect (obsolete)

excessive load on host after upgrading from 3.1 to 3.2

Reported by: Costin Grigoras Owned by:
Component: other Version: VirtualBox 3.2.6
Keywords: host load Cc:
Guest type: Linux Host type: Linux

Description (last modified by Frank Mehnert)

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 (3)

vb32_load.png (67.1 KB ) - added by Costin Grigoras 14 years ago.
load on host, before and after the upgrade
vb32_cpu_usage.png (115.4 KB ) - added by Costin Grigoras 14 years ago.
cpu usage on host, before and after the upgraed
VBox.log (40.2 KB ) - added by Costin Grigoras 14 years ago.
one of the log files

Download all attachments as: .zip

Change History (4)

by Costin Grigoras, 14 years ago

Attachment: vb32_load.png added

load on host, before and after the upgrade

by Costin Grigoras, 14 years ago

Attachment: vb32_cpu_usage.png added

cpu usage on host, before and after the upgraed

by Costin Grigoras, 14 years ago

Attachment: VBox.log added

one of the log files

comment:1 by Frank Mehnert, 10 years ago

Description: modified (diff)
Resolution: obsolete
Status: newclosed
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