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Billions of messages per day is 10-100k per second on average. If you do this in a vertical on one box with something like a ring buffer abstraction, you can achieve MPSC messaging rates in excess of millions per second without trying very hard across any arbitrary # of clients.

E.g. https://aeron.io/aeron-open-source/#aeron_transport



I find it mildly devious when numbers are inflated by changing the period from seconds to days.

Aeron and NSQ have slightly different design principles. Which can easily be identified in their feature list. Aeron’s origins are exchanges for fintechs and focus on predictable low latency with a tight standard deviation. NSQ puts heavy emphasis on being a distributed broker less message queue. Performance alone probably isn’t a good basis to measure their utility.




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