How Expensify achieves extreme concurrency with NUMA balancing(use.expensify.com)
use.expensify.com
How Expensify achieves extreme concurrency with NUMA balancing
https://use.expensify.com/blog/how-expensify-achieves-concurrency-with-numa-balancing
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I had some free time this holiday season and wrote up a blog post about how we use NUMA balancing on our 384-CPU, 6TB monster servers to keep the site humming reliably (and some of the challenges we've had to overcome). It's pretty low level, but I found there wasn't a lot of good info on how to optimize for high core-count servers, so I thought I'd share some experience. Enjoy!