VirtualBox

Ticket #5542 (new defect)

Opened 4 years ago

Last modified 4 years ago

Massive host slowdown during host packet capture

Reported by: charger Owned by:
Priority: minor Component: network
Version: VirtualBox 3.0.12 Keywords:
Cc: Guest type: other
Host type: Linux

Description

Host OS: Ubuntu 9.04, but also confirmed on Ubuntu 9.10

Initial setup: Two linux (Ubuntu 9.04) VMs which have NICs bridged with an interface on the host

If I run a packet capture on the bridged interface, all of the running VMs start doing massive amounts of disk I/O, resulting in massive slowdown. Doing the same thing with VMWare does _not_ result in massive slowdown.

I did some testing earlier today, and found that I experience the slowdown regardless of the traffic being sent from the VMs. That is to say, having the VMs running caused a slowdown during packet capture whereas having no VMs running and having the VBox modules unloaded did not cause a slowdown

Change History

comment:1 Changed 4 years ago by frank

How do you capture the packets on the host, wireshark?

comment:2 Changed 4 years ago by charger

I have been using tcpdump, but the same behavior also occurs with dumpcap and wireshark

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