<< Click to Display Table of Contents >> Navigation:  »No topics above this level« Media Performance

Delta Server is offered with very scalable hardware performance to target application/budget requirements. Shows are often more than just a movie, and every element adds to the server load. However, media bandwidth calculation is a good base judgement for planning straightforward playback.

In the example above, the 2800 × 2800 fisheye media would result in a media performance requirement on the Delta server of around 670 MB/s (670 Megabytes per second) if stored in a fully-uncompressed 4:4:4 format on disk. This is perfectly acceptable to a Delta Media server, which is based on fast SSD disks. The performance of the Delta Nucleus model, for example, is up to 1500 MB/s, so you can play this media and others at the same time, up to the 1.5 GB/s typical limit. Delta Infinity has a higher performance and is capable of up to 6.5 GB/s, and also has increased media capacity of up to 57 TB (internal).

Calculation of Media Performance

Media Width × Media Height × 3 (RGB) × framerate = bytes per second

then divide by (1024 × 1024) to give megabytes per second.

So, for example, 1920 × 1080 × 3 × 30 for an HD movie at 30 fps in 4:4:4 gives:

In this case, the 178 MB/s is easily playable, and you could play up to 6 of these in parallel on a Delta Nucleus (or more on a Delta Infinity).

Using 7TH formats, you have the choice of 4:2:2 (a 1.5:1 reduction) or 4:2:0 (a 2:1 reduction), so you can choose a trade-off between image fidelity against performance/storage requirement, depending on your needs.

4:2:2 format:
1920 × 1080 30 fps is 178 MB/s in 4:4:4, so 178/1.5 = 119 MB/s in 4:2:2

4:2:0 format:
1920 × 1080 30 fps is 178 MB/s in 4:4:4, so 178/2 = 89 MB/s in 4:2:0

Page edited [d/m/y]: 10/12/2020