Latest #performance Threads 
Torque is a high-performance JSON library for Elixir built on sonic-rs via Rustler NIFs. It targets workloads where JSON throughput is a ...
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I’ve been building an open-source multiplayer game server framework in Elixir, and I wanted to share the results.
The Challenge: Can the...
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I have a resource that has the following fields with regexes:
attribute :cnpj_basico, :string do
public? true
allow_nil?...
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Hey all,
I’m trying to build a low-cost website serving a catalogue of items, with standard options of viewing/filtering said items. It ...
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Hey folks! :waving_hand:
I think I have an interesting optimization challenge, let me know what you think…
A few months ago, I created ...
New
We have (DBConnection.ConnectionError) error in multiple places in our production only.
2025-09-03T16:13:51.0122410Z Request: POST /user...
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We have a rather large code base ~2200 elixir files and growing. On my nice Ryzen 9, it takes ~47 seconds to analyze the generated PLT fi...
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How to make Task.async_stream return results as they are ready?
I have the following code:
defmodule Demo do
def run do
child =
...
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I’m currently seeing some issued with our admin interface, where people on Intel CPU’s being shown the “the tab has crashed” kind of dial...
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I am researching instrumentation and I see there’s the :telemetry library but there is also :opentelemetry and additional integrations su...
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This Week's Trending
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I wanted to get a reality check from the wise folks of the forum on the differences and pros/cons in uuid vs. nanoid. UUIDv4 has been my...
New
I’ve been building an open-source multiplayer game server framework in Elixir, and I wanted to share the results.
The Challenge: Can the...
New
I have a resource that has the following fields with regexes:
attribute :cnpj_basico, :string do
public? true
allow_nil?...
New
We have (DBConnection.ConnectionError) error in multiple places in our production only.
2025-09-03T16:13:51.0122410Z Request: POST /user...
New
Hey all,
I’m trying to build a low-cost website serving a catalogue of items, with standard options of viewing/filtering said items. It ...
New
Torque is a high-performance JSON library for Elixir built on sonic-rs via Rustler NIFs. It targets workloads where JSON throughput is a ...
New
Hey folks! :waving_hand:
I think I have an interesting optimization challenge, let me know what you think…
A few months ago, I created ...
New
Last Three Year's Trending
Hello to you
I create a private server for World of warcraft, is Elixir a powerful enough language for this kind of project?
New
I think this twitter post and youtube video didn’t get as much attention as I hoped
I am still new to Elixir, so can’t really judge
...
New
Hello,
Why is this Elixir code:
defmodule Foo do
def run(file_name) do
File.open! file_name, [:read], fn f ->
IO.st...
New
Hello, everyone!
I have an Elixir Phoenix 1.7 app deployed to fly.io. I am receiving 10,000+ API calls at a time that I need to receive,...
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Hey everyone! New to the forum, not new to Elixir. :slight_smile:
In any case, recently had a discussion with @benwilson512 on overhead ...
New
One “downside” of Elixir being a functional programming language is that it’s slow when lots and lots of data has to be transformed. So, ...
New
Sometimes, Ecto (actually, DBConnection) spills an error like this:
DBConnection.ConnectionError: ** (DBConnection.ConnectionError) conn...
New
I’ve been adding and refining specs on my (12 KLOC Elixir) project. This is an iterative process, so I run Dialyzer a lot. Even after the...
New
Hi folks,
I’ve written custom types before, but this specific case gives me pause, and I wonder if you could explain your reasoning here...
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I know not to worry about performance before getting evidence of a problem, but I’m idly curious about preloads. (Note: I have fairly lit...
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I am researching instrumentation and I see there’s the :telemetry library but there is also :opentelemetry and additional integrations su...
New
Hey there
Regarding performance, is there a difference between guards and generated functions using pattern matching? Or does the compil...
New
While profiling and optimizing some performance critical code, I noticed that Map.take was one of the biggest contributors to the overall...
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Hello. As a side project, I have created various implementations of Conways Game of Life in over 20 languages. Over this past weekend, I ...
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M3 Pro with 18 GB memory
Fresh install of Elixir 1.18.1 via the install.sh script: https://elixir-lang.org/install#install-scripts
My u...
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Trending Over Three Years
Hi, I’m just starting to build a side-project with Elixir and Phoenix and doing some basic test with Elixir alone.
What strikes me is th...
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Hi all - cross posting this from the elixir-talk mailing list. I could use some help. I am currently evaluating Elixir and Phoenix for a ...
New
Hey everyone,
Having a great time building v2 of our app in Elixir (previously Node). And getting to that stage: how does everyone here...
New
I just saw this tweet passing by but I have no idea what it’s hinting at, but it looks awesome :slight_smile:
https://twitter.com/joseva...
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I’ve been working on an Elixir project that has required a lot of scripting. I usually reach for Elixir because I like it more (and in th...
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I wrote up a detailed blog post about tail call optimization in Elixir/Erlang and its performance. The TLDR; sort of is that none tail ca...
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How does Elixir speed compare to F# for non-web applications - say, something like a chess game player.
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Has anyone else observed throttling of Erlang or Elixir processes running in Kubernetes (or other Docker orchestration platforms)?
I’ve ...
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Just wanted to throw a quick question out there regarding ‘inspect’ in Elixir – for a while we were using it in our logs to print out dif...
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At work we have a lot of Scala code in our low latency/high throughput product and a couple of us have been advocating Elixir as an alter...
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Following this small benchmark experiment (https://blog.fefe.de/?ts=a2689de5), I wrote a short Elixir script to calculate the counts of d...
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I am currently trying to compile a Big-O Time Complexity table for the Elixir data structures, but can’t find information for all complex...
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A boss of mine is not convinced to use Elixir for our production apps.
Another round of our polemics was the test.
He wrote two small...
New
Hi Elixir developers!
I’ve created an elixir app wich creates a set of processes (about 900) with a lot of calculation distributed among...
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Plenty of guides that show how to profile a specific function, but I can't figure out how to profile an application (run with --no-halt, ...
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