Guru on Rails

if you don’t sacrifice for your dream then your dream becomes your sacrifice.
Will Nguyen

Performance


Tue 07 Aug 2018

Performance

One of the performance matter we usually encounter is Enumerator. Today, I introduce you a kind of performance issue we ever faced about enumerator. That's Enumerator in ruby. The case is when we e...


Wed 05 Sep 2018

Performance

I encountered this issue yesterday. It's hard to find the cause because of callbacks. We create objects and we use them somewhere in the scope. We created callbacks for models before but when we us...


Mon 24 Dec 2018

Software Architecture Best Practices Performance

Rabbitmq and Sneakers would bring to us a ton of benefits. That is one of many solution for improving performance by placing synchronous work into a background work asynchronously. However, we can ...


Thu 18 Jul 2019

Best Practices Performance SQL

If we work on a complex system, queries are pretty complex with a ton of subqueries, we would encounter the problem of optimization of query. In order to achieve a goal, we have many ways to do. So...