Speaker
Jonathan Heathcote
(BBC Research and Development)
Description
The BBC runs its own in-house media CDN called BIDI which serves a large proportion of BBC iPlayer's video traffic. At the heart of this is a distributed fleet of caching servers dotted around the UK internet. Historically these have been based on x86_64 CPUs where peak capacities have plateaued at around 70 GBit/s. With 200 and 400 GBit/s links and NICs becoming increasingly common, we have been exploring how ARM-based servers could help us break through the CPU bottleneck. In this talk we explore how the rules of the game change in this new world, now dominated by memory bandwidth. In particular, we describe the difficulties of realising the potential of high speed NICs and recreating realistic loads in the lab.
| Talk Duration | 25 Minutes Presentation (+5 Minutes Q&A) |
|---|---|
| Presentation delivery | In-person at the meeting |
| Your consent for us to publish your name and affiliation as a Speaker on the NetUK website and Social Media | Yes |
Primary author
Jonathan Heathcote
(BBC Research and Development)
