VirtualBox

Ticket #6474 (closed defect: fixed)

Opened 13 years ago

Last modified 12 years ago

High CPU when changing network to NAT

Reported by: xok Owned by:
Component: network Version: VirtualBox 3.1.6
Keywords: nat, bridge, network, high cpu Cc:
Guest type: Windows Host type: Windows

Description

Hi,

Host is Win XP SP3, Guest is Windows Server 2003.

Start the VM as bridge, when OS is running, change the network connectivity to NAT.

Any request to the Internet (e.g. IE) will push up the CPU to 100% use up to 7 ou 8 seconds.

Setting back to bridge connectivity will get back to normal.

Attachments

_cssdgo-2010-04-01-19-23-08.log Download (60.9 KB) - added by xok 13 years ago.
_cssdgo-2010-04-01-19-23-08.2.log Download (60.9 KB) - added by xok 13 years ago.
_cssdgo-2010-04-06-17-13-02.log Download (49.8 KB) - added by xok 13 years ago.

Change History

comment:1 Changed 13 years ago by Hachiman

Could you please attach log file?

comment:2 Changed 13 years ago by xok

Hello,

I have made an regression to v3.1.4, the version v3.1.6 seems to consume a lot of CPU.

Changed 13 years ago by xok

Changed 13 years ago by xok

Changed 13 years ago by xok

comment:3 Changed 13 years ago by Hachiman

"use up to 7 ou 8 seconds" does it mean that cpu usage up to 100% for 7-8 seconds ant then calm down? What happens if start vm with NAT networking?

comment:4 Changed 13 years ago by xok

"use up to 7 ou 8 seconds" does it mean that cpu usage up to 100% for 7-8 seconds ant then calm down?

Yes, when changing adapter type and using NAT consumes a lot of CPU (e.g. browsing on the web and using Numara Track-It! Server / Client) when compared to Bridge.

I have made an regression for 3.1.4, which seems more stable in my environment (notebook Asus M50SV) and consumes a lot less CPU.

comment:5 Changed 13 years ago by xok

" What happens if start vm with NAT networking? "

Now that you are asking, I dont quite remember if I had started in NAT..

comment:6 Changed 12 years ago by frank

  • Status changed from new to closed
  • Resolution set to fixed

Please reopen if still relevant with VBox 4.0.4.

Note: See TracTickets for help on using tickets.

www.oracle.com
ContactPrivacy policyTerms of Use