Network performance issues in Windows 7

Discussions about using Windows guests in VirtualBox.
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All Embedded
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Joined: 14. Mar 2014, 18:04

Network performance issues in Windows 7

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I am running version 4.3.8 with a Windows 7 guest on an Ubuntu 12.04 host.
I am running into network problems.

On the guest runs a python script sending an UDP stream containing audio samples generated by the script.
The stream is an unicast stream send to a hardware audio decoder.
The audio decoder generates analog audio from these packets.
This is part of an audio test system.
The audio from the decoder should be a continuous sine wave (single tone) for as long as the script runs.
The script runs about 2 seconds.
The problem is that the sine wave is not continuous but has gaps of about 30ms, measured on the analog output of the decoder.

Running this script on a native Windows 7 PC has no issues.
Running this script on the Ubuntu 12.04 host has no issues.
Running this script on a Linux guest on the same host has no issues.

I have tried to modify some network settings on the Windows guest, but so far no luck.

I am curious if anyone has any idea about how to improve network performance.

Thanks in advance!
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