Welcome to my blog

Mastering Code Search with JetBrains Scope

Background As software engineers, one of the most crucial skills we develop is the ability to search through code efficiently. Whether it’s finding a specific function, understanding how a certain feature is implemented, or tracing a bug, being able to quickly navigate a codebase is essential for productivity. However, many codebases can be complex and sprawling, leading to noisy search results that hinder rather than aid our progress. JetBrains provides a few tools to help you refine your code search and focus on what’s important....

September 30, 2023 · 3 min · Johnny Metz

Supercharge Your Django App: 7 Sneaky Tricks to Crush Slow Database Queries

Optimizing Django query performance is critical for building performant web applications. Django provides many tools and methods for optimizing database queries in its Database access optimization documentation. In this blog post, we will explore a collection of additional and essential tips I’ve compiled over the years to help you pinpoint and resolve your inefficient Django queries. Kill Long-Running Queries with a Statement Timeout PostgreSQL supports a statement_timeout parameter that allows you to set a maximum time limit per query....

August 13, 2023 · 6 min · Johnny Metz

Optimize Django Query Performance by combining Select Related and Prefetch Related

Introduction When building a Django application, one of the key challenges developers face is optimizing database query performance. Django provides two tools,select_related and prefetch_related, that reduce the number of database queries, and increase the performance of your application. This blog post explores the power of these two methods and how to combine them to maximize your application’s query performance. My team at PixieBrix implemented these techniques and have seen a significant improvement in query performance and customer satisfaction....

May 13, 2023 · 3 min · Johnny Metz

Free up disk space with Docker prune

Docker is a platform for developing, shipping and running applications in isolated, lightweight and portable containers. It is a critical part of a developer’s toolbelt and one I use just about everyday. Docker can consume a large amount of disk space. Per the Docker documentation: Docker takes a conservative approach to cleaning up unused objects (often referred to as “garbage collection”), such as images, containers, volumes, and networks: these objects are generally not removed unless you explicitly ask Docker to do so....

January 21, 2023 · 4 min · Johnny Metz

[Cross-Post] Django performance: Sort by a Custom Order

See the post here: Sort a Django Queryset by a Custom Order

January 2, 2023 · 1 min · Johnny Metz