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I wish we could have something similar - a quick online benchmarking tool - for Kotlin :slightly_smiling_face:
<https://quick-bench.com/q/6tDxsmk3FMX55B8W1RrdiG_s7_k>

I usually write two unit test cases and look at the measured execution time in the UI.

<@U025FAKGGJY> in that case the results would be not that accurate, because of jvm warm up, jit optimizations, etc... Using a microbenchmarking tool like <https://github.com/openjdk/jmh|jmh> would give more accurate results

yeah; <@U025FAKGGJY> here’s a video from <@UF3V7CF4M> on this -&gt; <https://www.youtube.com/watch?v=vx95YRlUTts>

I am thinking of somebody can setup this microbenchmarking tool in a server and provide a web frontend :stuck_out_tongue:

<@UF3V7CF4M> any plans to provide such tools (from JetBrains) ? :slightly_smiling_face:

I really like the idea, but I doubt that JetBrains will be able to offer such a product soon: So its certainly open for anybody who is searching for a cool hobby project!

This could be relevant;
<https://github.com/romainguy/kotlin-explorer?tab=readme-ov-file>

<@U040VNZ7GKU> thanks for the share. does it have anything extra compared to <https://godbolt.org/> ?

<@U01JER2C1UM> I don’t know, I haven’t used Kotlin Explorer before;
I saw it was mentioned in an article talking about performance; So thought it would be relevant to someone here as well :wink:
<https://kotlinlang.slack.com/archives/CDFP59223/p1728277606388849>

ah no worries. thanks for the links frank.

that blog post in that thread seems more interesting than this conversation :smile: thanks again :smile:

&gt; does it have anything extra compared to <https://godbolt.org/> ?
<@U3JQ35YQK> i think you’re the _best_ person to answer about this :wink:

( <@U04EHEUCP9R> fyi, your article has been mentioned in this channel :wink: )

The main benefits of Kotlin Explorer compared to Compiler Explorer are that it runs locally and on your device so:

1. It’s a lot faster
2. It does exactly what your device does

For #2, you can set flags in Compiler Explorer to make dex2oat support the same features as your device’s CPU, and most of the time you likely won’t care so it’s not a big deal

understood. thanks for responding :handshake:

Also dex2oat on compiler explorer only goes through D8 and not R8

I also found out that R8 in Compiler Explorer treats the kotlin-stdlib as a class path library which is not how it's compiled in your app, so the results aren't exactly the same. I need to talk to the folks who built this to see if we can fix it 