Our today coding kata is a website heartbeat system.
It checks the correct <title> for a bunch of domains.
If a site is down, or the title is wrong, it should send a email.
Of course it will do the job in parallel.
I’ll try it with Elixir and Go for fun and learning - and to have a bit of monitoring my sites.
Our today coding kata is parallel processing of streamed CSV data from a file. I’ll try it with Elixir and Go for fun and learning.
TL;DR For Elixir, parallel_stream will win against Task.async and Poolboy for simplicity. In Golang it’s straightforward goroutines and sync.WaitGroup. Both runs fast and safe. And its a lot of fun.
As a response of my update of “Benchmark Helloworld in different frameworks” yesterday, @chris_mccord gave me some hints on Twitter. So here we go.
Improvements:
wrk instead of ab
log_level: :error + compile_time_purge_level: :error
plug: protect_from_forgery
plug :fetch_session and plug :fetch_flash (even we don’t use them on purpose for the test)wrk support duration instead of requestsI’ll test (like before) on my MacBookPro 15” Mid 2010, 2,53 GHz i5, 8 GB DDR3, OS X El Capitan 10.11.2 and wrk 4.0.0.
TL;DR Go is still faster than Elixir. But remember .. apples and peaches.
[see also https://www.techempower.com/]
When I started with Elixir and Phoenix I wanted to see with my own eyes the speed of functional approach and Erlang in comparing with other well known languages. I just want to compare the simplest possible “Hello world” in Javascript, PHP and Elixir.
Every implementation is benchmarked with the Apache HTTP server benchmarking tool ab. I run 1000 requests on 10 and 100 concurrent connections with ab -n 1000 -c 10 http://127.0.0.1:../. The return of “Hello world” ist quite enough but it differs a little bit from test to test. So no HTML, no pre/postprocessing or something. Well, its a bit “comparing apples with peaches”.
[see also https://www.techempower.com/]
Der Weg zum Alchemist Rookie ist lang und steinig. Aber wie alle solche Wege lohnt er sich. Und wenn nicht, wahres konsequentes Handeln zeigt man erst wenn man auch Holzwege zuende gegangen ist.