Ticket #11304 (new defect)
Windows 7 Bridged Networking high CPU usage
|Reported by:||parps||Owned by:|
|Version:||VirtualBox 4.2.4||Keywords:||cpu usage bridged|
Virtualbox 4.2.4 r81684 on Windows 7 Professional 64-bit host.
After installing with default options, CPU usage hovers around 80-100% for a single core. This is immediately after installation, before configuring any VM. Rebooting has no effect.
Uninstalling drops CPU back to 0%. Reinstalling with Bridged Networking unselected in the installer leads to 0% CPU.
On further investigation, it seems to be related to the "Atheros AR8161/8165 PCI-E Gigabit Ethernet Controller". Disabling this device in Device Manager causes the CPU usage to immediately drop back to 0%
Driver Provider: Atheros Driver Date: 16/01/2012 Driver Version: 126.96.36.199