Backend>Blogs/Talks

Careful what data you send or how to tank your performance with Task.async

PragTob

PragTob

Careful what data you send or how to tank your performance with Task.async

I ran into an interesting problem recently where simple concurrency on the BEAM via Task.async made my application a lot slower and a lot more memory hungry. This blog post illustrates the issue with a short example, where processing 3 non-trivial actions on a list in parallel is slower than doing it sequentially, and then explains why this happens and what can or can’t be done about it.

View thread on forum
/elixir/erlang#blog-post
1 390 0

Where Next?

View thread on forum
elixir
erlang
blog-post
Home Backend>Blogs/Talks
/elixir/erlang#blog-post
1 390 0
Last post

Popular Backend topics Top

wolf4earth
Backend>Blogs/Talks

How we split Plug.SSL to control SSL redirection
dev.betterdoc.org
/elixir#elixir-plug#ssl#https
5 1341 2
New
First poster: bot
Backend>Blogs/Talks

Rust vs Go
Rust vs Go — Bitfield Consulting. Which is better, Rust or Go? Which language should you choose for your next project, and why? How do t...
bitfieldconsulting.com
/go/rust
0 1223 0
New
First poster: bot
Backend>Blogs/Talks

The Race to Replace C & C++
The Race to Replace C & C++. Three expert compiler writers sit down to discuss moving beyond C and C++ This thread...
media.handmade-seattle.com
/c-plus-plus/zig
0 1302 0
New
Rainer
Backend>Blogs/Talks

Giving C# enums string values using attributes and extension methods
Just wrote a short post, more a memo to myself, but maybe someone find it useful :stuck_out_tongue: https://dwarfte.ch/2021/02/03/giving...
dwarfte.ch
/c-sharp
4 1075 4
New
First poster: bot
Backend>Blogs/Talks

Exciting New Features in Django 3.2
Django 3.2 is just around the corner and it’s packed with new features. Django versions are usually not that exciting (it’s a good thing!...
hakibenita.com
/django
0 1114 0
New
First poster: bot
Backend>Blogs/Talks

Between Go and Elixir
I discovered Elixir and Go at about the same time (2019). I had pivoted almost eight years of working as a Java developer, and part of me...
preslav.me
/elixir/go
2 1050 0
New
brainlid
Backend>Blogs/Talks

ThinkingElixir 081 - Elixir in a Burrito with Quinn and Digit
In episode 81 of Thinking Elixir, we talk with Digit and Quinn Wilton about the Burrito project. It wraps up Elixir to a single binary, e...
podcast.thinkingelixir.com
/elixir/security#podcasts/zig#dev-news-source#cross-platform
4 1179 0
New
brainlid
Backend>Blogs/Talks

ThinkingElixir 092 - Temple with Mitchell Hanberg
In episode 92 of Thinking Elixir, we talk with Mitchell Hanberg and learn about why he created the alternate Phoenix templating language ...
podcast.thinkingelixir.com
/elixir#podcasts#testing#browser/html#dev-news-source
4 1062 0
New
StuntProgrammer
Backend>Blogs/Talks

Media Storage and CDN with Phoenix and Elixir
In building lofi.limo, media storage and distribution naturally came up. I have songs, announcements, and background image loops which I ...
lofi.limo
/elixir#article
20 1096 5
New
ragamuf
Backend>Blogs/Talks

Roll Your Own Blog in Elixir and Phoenix
Does the world need another How to create a blog article? Maybe not. But then again, creating something out of nothing is what we love....
gocassava.com
/elixir/phoenix#blog-post#static-site-generators
7 1060 3
New

Other popular topics Top

Devtalk
General Dev>Dev Chat

What dev-related stuff have you been up to?
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
#community
1032 17402 381
New
AstonJ
Science/Tech>Tech Chat

What are you watching?
Or looking forward to? :nerd_face:
#community
480 9438 251
New
Exadra37
General Dev>Hardware

What monitor(s) do you have for programming?
Please tell us what is your preferred monitor setup for programming(not gaming) and why you have chosen it. Does your monitor have eye p...
#monitors#coding#programming#development
227 8684 88
New
AstonJ
General Dev>Hardware

Custom keyboard keycaps
There’s a whole world of custom keycaps out there that I didn’t know existed! Check out all of our Keycaps threads here: https://forum....
#hardware/keyboards#keycaps#mechanical-keyboards
15 8183 19
New
Rainer
General Dev>Dev Chat

Do you have any (non-dev) hobbies?
Not sure if following fits exactly this thread, or if we should have a hobby thread… For many years I’m designing and building model air...
#community
200 3586 78
New
AstonJ
Backend>Chat

Rails console using 100% CPU in dev (fix)
If you are experiencing Rails console using 100% CPU on your dev machine, then updating your development and test gems might fix the issu...
/ruby/rails
3 3675 3
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Dmitry Zinoviev (Author) Interview and AMA!
Author Spotlight Dmitry Zinoviev @aqsaqal Today we’re putting our spotlight on Dmitry Zinoviev, author of Data Science Essentials in ...
#author-spotlight/python/book-complex-network-analysis-in-python/book-data-science-essentials-in-python/book-resourceful-code-reuse/book-pythonic-programming
33 4801 14
New
PragmaticBookshelf
Community>In The Spotlight

Spotlight: Bruce Tate (Author) Interview and AMA!
Author Spotlight: Bruce Tate @redrapids Programming languages always emerge out of need, and if that’s not always true, they’re defin...
/elixir/ruby/phoenix/book-seven-more-languages-in-seven-weeks/book-seven-languages-in-seven-weeks#liveview/book-programming-phoenix-liveview
54 4591 23
New
CommunityNews
General Dev>In The News

Review of Linux on Minisforum V3 AMD Ryzen Tablet
A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
mudkip.me
#linux#review#amd
0 1782 0
New
Fl4m3Ph03n1x
AI>Questions

What are the best text-to-speech ai generation tools that you can run locally?
Background Lately I am in a quest to find a good quality TTS ai generation tool to run locally in order to create audio for some videos I...
#ai#text-to-speech
6 1768 3
New
Back to top

Sponsor Spotlight

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Latest in Elixir

Elixir Portal ❯

Latest in Erlang

Erlang Portal ❯

Backend>Blogs/Talks

Backend Blogs/Talks ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap