Provided is a quick recording of how RGS (v5.1.5) performs on a "cloud" hosted machine when playing Flash and Quicktime videos. The capture software that we used made the video a little sluggish (as can be seen from the not-so-smooth mouse movements which should otherwise be smooth when using RGS regardless of connection quality). User interface performance was crisp and interaction was very near to the all important “local feel” (which is uncharacteristic of RDP connections).
A Windows AMI configured as a "High-CPU Medium (c1.medium)" instance type was selected for this session. The HP RGS image quality was arbitrarily set to 50% to conserve bandwidth and processing load. As this is an initial proof of concept, we did not optimize the image quality parameter and as so it will be left as an additional exercise in the future. Due to time constraints, common office productivity software was not tested and demonstrated on the cloudafied desktop however we strongly believe that RGS would perform well in this area as most common office productivity software is static and thus not bound by the CPU and connection bandwidth requirements necessary for dynamic multimedia content.
We believe that performance can be improved because the EC2 hosted Windows machine is not running an optimized video driver, that is, it is using the standard Windows VGA adapter driver. This drawback limits the maximum desktop size to 1280x1024 (without explicit hacks to increase the resolution capability if at all possible). Additionally, an older version of RGS was used during testing on an operating system not intended for desktop use (although changing processor scheduling and memory usage parameters may improve apparent desktop performance); newer versions of RGS running on the intended platforms may offer improved performance. Despite these drawbacks, multimedia performance was still surprisingly satisfactory.
And now to the video: