Opened 15 years ago

Closed 9 years ago

#5542 closed defect (obsolete)

Massive host slowdown during host packet capture

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

Description (last modified by Frank Mehnert)

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 (3)

comment:1 by Frank Mehnert, 15 years ago

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

comment:2 by charger, 15 years ago

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

comment:3 by Frank Mehnert, 9 years ago

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