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WebSockets cost us $1M on our AWS bill
IPC is something that is rarely top-of-mind when it comes to optimising cloud costs. But it turns out that if you IPC 1TB of video per second on AWS it can result in enormous bills when done inefficiently.
Join us in this deep dive where we unexpectedly discover how using WebSockets over loopback was ultimately costing us $1M/year in AWS spend and the quest for an efficient high-bandwidth, low-latency IPC. While this is great for security, the downside is masking the data means making an additional once-over pass over every byte sent over WebSocket -- insignificant for most web usages, but a meaningful amount of work when you're dealing with 100+ MB/s This exercise in optimizing IPC for CPU efficiency reduced our AWS bill by over a million dollars per year, a huge impact and a really great use of time!
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