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This incredible milestone was achieved while maintaining sub-millisecond latency for the 99.99 percentiles
WALTHAM, Mass., April 21, 2021, today announced that HAProxy 2.3 tested on a single Arm Neoverse-based AWS Graviton2 instance scales and achieves 2.04 million requests per second. While the tests demonstrate that the load balancer can scale to an incredible level if run on very powerful servers with significant network bandwidth, it's also possible to run on much more modest hardware while still achieving excellent results.
To learn more, read the HAProxy blog post:
HAProxy Forwards Over 2 Million HTTP Requests per Second on a Single Arm-based AWS Graviton2 Instance
"This proves that the radical move to multithreading engaged four years ago and the determination to progressively attack all the remaining bottlenecks was the right strategic move for the project at an era dominated by multi-core CPUs: it now performs better than ever without all the functional limitations that once were imposed by a multi-process architecture. I'm even happier to completely remove support for this obsolete model in 2.5," said Willy Tarreau, Community Project Lead & CTO at HAProxy Technologies.