Choppy Multimedia Display Performance In Virtual Desktop Infrastructure with HP BL685 Blade servers (Doc ID 1425807.1)

Last updated on SEPTEMBER 07, 2012

Applies to:

Oracle VirtualDesktop Infrastructure - Version 3.3.1 and later
Information in this document applies to any platform.

Symptoms

When using Virtual Desktop Infrastructure (VDI), version 3.3.1 or later in a deployment with the Oracle VDI Hypervisor (VirtualBox) installed on HP BL685 Blade servers, users may report poor display performance in Windows sessions. Specifically video and audio performance is choppy.

For example, users running Internet Explorer (IE) 8 or IE 9 on Windows 7 Virtual Machine (VM) with 1 CPU & 1 GB RAM and playing flash videos, the VM's CPU usage hovers around 70 - 90 %.  As the end user moves the mouse around, the video becomes choppy, audio out-of-sync.  Once the mouse stops moving mouse, the video and audio eventually syncs back up.  Starting a second application such as Wordpad may again cause the video becomes choppy and audio gets out of sync occasionally.  

In this scenario, the VM's CPU consumption with a bare bones Windows 7 Enterprise installation is often very high (80%+) with vRDP and the flash video playback.

Cause

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