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by madflojo 2397 days ago
I'm not an expert in Rust or dotNet Core but I can give a bit of insight. At the time (2016) Rust wasn't as visibly used in production as it is today. Also from my understanding over the past few years a lot of new features have gone into Rust which makes it more viable these days.

As far as dotNet Core, it is used at AXP but generally not in our high performance environments. Not saying it couldn't as I'd have to do a lot more research to say one way or another on that. But I'd say that's the primary reason it wasn't added to the list.
1 comments
mikece 2397 days ago
My apologies: I missed the 2016 reference -- I wouldn't have recommended dotNetCore three years ago and I'm only now waking up to the power of and speed of Rust and didn't realize just how young it is. I'm still a little amused that Go was the only language not in use already that was considered but understand that the list of possible high performance alternatives was indeed short... shorter than I realized.
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madflojo 2397 days ago
All good. There were a lot of factors to creating the list, Enterprise use and readiness was one big one. So we narrowed it down to what we thought were the best choices. Always the possibility we missed something, but thats true of any decision like this.

Appreciate the read and questions though!

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mikece 2396 days ago
Are you on the AMEX team(s) in question? I am always interested in knowing all of the factors that were part of the decision in why a team chose the language or platform it did and if, after a respectable period of time, everyone is still happy with the choice or if there's buyer's remorse and what greener pasture languages/platforms (or problems with the selected stack) are bringing on those second thoughts.
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madflojo 2396 days ago
Yeah, thoughts and opinions are my own of course but overall we've had good experiences.

I tried to insert some of the benefits we are seeing into the article in different pieces but now that we are several years later have it running in production. We are happy with the decision. In my opinion, there are even some newer things we didn't write in Go that I kind of wish we did.

The reasons we choose Go are holding true, and I can't say enough about how the performance and low GC times out of the box is something that is very beneficial. At least for my use cases.

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