nguyensach / Effective_Engineer.md

Created February 19, 2020 03:28 — forked from rondy/Effective_Engineer.md

FWIW: I didn't produce the content presented here (the outline from Edmond Lau's book). I've just copy-pasted it from somewhere over the Internet, but I cannot remember what exactly the original source is. I was also not able to find the author's name, so I cannot give him/her the proper credits.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

nguyensach / ruby_books.md

Created April 3, 2019 10:17 — forked from baweaver/ruby_books.md

A list of books for learning and expanding on your Ruby knowledge.

Ruby Book List

Learning Ruby

You're taking your first steps into Ruby

The Well Grounded Rubyist

A good introduction to programming in general. Easy on newer programmers.

nguyensach / nginx-tuning.md

Created March 7, 2019 06:14 — forked from denji/nginx-tuning.md

NGINX tuning for best performance

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

nguyensach / transactions.markdown

Created October 12, 2018 03:03 — forked from jcasimir/transactions.markdown

Transactions

As your business logic gets complex you may need to implement transactions. The classic example is a bank funds transfer from account A to account B. If the withdrawal from account A fails then the deposit to account B should either never take place or be rolled back.

Basics

All the complexity is handled by ActiveRecord::Transactions. Any model class or instance has a method named .transaction. When called and passed a block, that block will be executed inside a database transaction. If there's an exception raised, the transaction will automatically be rolled back.

Example

nguyensach / gist:9484c8857b9fb334ebddc870f31b89ed

Created September 12, 2018 15:14 — forked from shyouhei/gist:266178ffedab5767a5b69b972c76f88a

優秀なプログラマーになるためのコツ

重要な順で

優秀なプログラマーになるには非常に長い時間がかかるという現実を直視すべし

優秀なプログラマーというのは寝ている間に異世界に召喚されて無双するのとはわけが違うんですよ。

自分の例で言うとプログラミングを始めた中学生の時から優秀なプログラマだったかって、そんなわけない。みんなヘッポコからスタートしているに決まってるわけです。以来二十余年、地道に生き恥を晒し続けてきた結果として、現在いちおう業界の末席を汚すところまで来ている。このプロセスから目を背けるべきではないです。優秀なプログラマーに生まれる人間なんかいない。優秀なプログラマーに「育つ」んだし、それには時間が必要。今日から無双したいと思うな。

nguyensach / README.md

Created September 7, 2018 03:23 — forked from hofmannsven/README.md

Simple Command Line Cheatsheet

Command Line Crash Course

Cheatsheets

Linux auf einem Blatt

nguyensach / rails_load_path_tips.md

Created August 27, 2018 07:08 — forked from maxim/rails_load_path_tips.md

How to use rails load paths, app, and lib directories.

In Rails 3

NOTE: This post now lives (and kept up to date) on my blog: http://hakunin.com/rails3-load-paths

If you add a dir directly under app/

Do nothing. All files in this dir are eager loaded in production and lazy loaded in development by default.

If you add a dir under app/something/