It would be nice to have some sort of batch performance measurement. I suggest doing this: - add special endpoint to each server

/shutdown

so that we can

curl

it to shutdown server - add some sort of build task to run each server, fire

wrk

at it, and dump results into special folder with the module name

Here is an example of how to do it with #ktor https://github.com/Kotlin/ktor/blob/master/ktor-samples/ktor-samples-embedded/src/org/jetbrains/ktor/samples/embedded/EmbeddedApplication.kt

Ooh yeah good catch. We should fix that.

nanohttpd has no routing build in, you need to look at the actual request

I'll fix it right away

Added https://github.com/rocketraman/kotlin-web-hello-world/issues/4 to track @orangy suggestion, and https://github.com/rocketraman/kotlin-web-hello-world/issues/5 as a tracking issue to check routing.

I've fixed nanohttpd

In just few days @rocketraman got a new open source project he has to maintain now 😄

@rocketraman PR for serving image

it has all servers except for akka non-route way

I couldn't quickly find how to do it. With routes it’s easy.

@orangy Thanks! Maybe for Akka we should just remove the non-route option and just keep every framework consistently using routes.

@rocketraman hmm, new commit added with Undertow support. I didn’t know github automatically picks new commits

Yeah anything you push to the branch you make a pull for gets added to the pull.

Okay, will do proper branches next time

E.g. in #server we could ask someone with powerful gradle-fu skills to help us automate simple benchmark testing of web frameworks with Kotlin, including #ktor and #wasabi, etc.

@orangy do you have any [nightly] CI performance reports in ktor?

Not really, no.

In this message I was relating to @rocketraman’s project here: https://github.com/rocketraman/kotlin-web-hello-world

@rocketraman I’ve made some integration JMH benchmark for #ktor (https://github.com/Kotlin/ktor/blob/master/ktor-jmh/src/org/jetbrains/ktor/tests/IntegrationBenchmark.kt) What do you think, may be we can make something similar in cross-framework benchmarks? This way we don’t need any special

die

endpoints, gradle magic, etc. Just run JMH.

I like the general idea. I didn't realize JMH was useful for macrobenchmarks too...

Thoughts: by using

URL

for the connection, wouldn't the test mostly be checking HTTP connection setup and tear-down time? In comparison

wrk

is doing persistent connections with multiple threads... We could improve use AsyncHTTPClient or the Jetty Http client to similar effect.

That’s just proof of concept, and in fact URL can support keep-alive connections, as far as I understand. Actual benchmark results are very similar to wrk's

See

sun.net.www.http.HttpClient.KeepAliveCache

Cool, didn't know that

No pipelining

Nope. Well, we are in need of pluggable abstract API for HttpClient in #ktor 🙂 It would be used for OAuth primarily. Default one should be standard URL to avoid extra dependencies, when it’s not really important or even needed. Some day we will make it. Or may be someone can do it? 😉

hello. is https://github.com/Kotlin/ktor ready for production

It’s at version 0.2.3 as of now, pretty fast, pretty stable, though not finished as in v1.0. There could be API changes, improvements, sure there are bugs. But more or less it’s ok to at least try I think 🙂 #ktor for more details

Hey guys..new to kotlin here. Just wondering is anybody using kotlin for their API/backend in production. What frameworks are you using ? I was really keen on spring boot...but I don't see a lot of that.

My team is. We're mostly using wasabi