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by faizshah 1640 days ago
That chart shows fastapi and nestjs are 2 of the fastest libraries among dynamic languages. And nestjs is <20% faster than fastapi because fastify is <20% faster than starlette.

Not sure what this has to do with the library’s quality though, it is a high quality modern python library.
2 comments
Zababa 1640 days ago
> That chart shows fastapi and nestjs are 2 of the fastest libraries among dynamic languages.

With only JavaScript, Perl, Lua, PHP, Python and TypeScript enabled, fastapi is 64th and nestjs is 73rd, out of 136 libaries. They have a score that's ~10 times lower than the fastest libraries.

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faizshah 1640 days ago
You have to deselect platforms first off but even then you will still see starlette and fastify on the list being compared to frameworks like nestjs and fastapi. The anomaly is workerman/swoole based PHP libraries which are significantly faster than other dynamic languages frameworks by 2-10x it’s not that express and Koa and fastapi etc are slow it’s that PHP is an anomaly. This is the problem with this benchmark it’s very misleading.
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Zababa 1640 days ago
This is not an anomaly. Workerman and Swoole are asynchronous PHP frameworks. Node is asynchronous by default, so Express/Koa/Fastify/NestJS are asynchronous. Starlette is an ASGI framework/toolkit, so it's asynchronous too. FastAPI is based on Starlette. The thing is that asynchronous PHP is way faster than asynchronous Python or asynchronous JS. There is nothing misleading about this. If you need performance, PHP is a better choice than Python or Javascript
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faizshah 1640 days ago
If you have to deselect 20 default filters and then read through the frameworks in the list to see which ones are fully featured web frameworks in order to evaluate whether a library is suitably fast for your next project it is misleading. But again, I'm not sure what this has to do with it being a high quality modern python library.
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Zababa 1640 days ago
> If you have to deselect 20 default filters and then read through the frameworks in the list to see which ones are fully featured web frameworks in order to evaluate whether a library is suitably fast for your next project it is misleading.

It is not, this benchmark is purely about speed, not about being "suitable for your next project". You're the one adding all these other constraints. You only need to deselect some filters when you're doing something like comparing dynamic languages, which you did and wasn't even the initial claim discussed. I also doubt most people would call FastAPI "suitable for your next project" compared to something like Django or Flask that is already well known and maintained.

> But again, I'm not sure what this has to do with it being a high quality modern python library.

We're in a subthread discussing a claim on the FastAPI website that it's "Fast: Very high performance, on par with NodeJS and Go.", and how it's obviously wrong for Go, and possibly wrong for NodeJS.

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chris_hawkes 1639 days ago
NestJS is what I use for my website, https://www.codehawke.com. I have no idea if this provides any speed burst over fastapi, but I'll say it's a lot of code making Nestjs run. It can't be a good choice for basic static/serverless apps. These benchmarks are questionable.
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