BigO = Performance! And other lies programmers tell themselves!! @GamesWithGabe
BigO = Performance! And other lies programmers tell themselves!!  @GamesWithGabe
Uploaded March 2022 | Updated September 2026, 3 weeks ago
Have you ever analyzed your algorithm and found out that it runs in O(n^2) and thought to yourself, "man I'm a crappy programmer...". Well, you are! But not for the reasons you think! If you think Big Oh = performance, boy have I got news for you. In this video I try to dispel this fallacy that programmers have assumed, that Big Oh complexity equates to performance.

My Benchmarks: gist.github.com/ambrosiogabe/66a6e2fdc77e6a600e570f4639222120

Yea, there's probably issues with the way I timed this and stuff. I don't really care. It's simply to illustrate a point, which is this is all utterly worthless and I wasted my time to try to illustrate that Big Oh complexity means absolutely nothing in terms of profiling your code.

---- Music ----
Note: I would provide links to these songs,
however YouTube Studio doesn't provide an
easy way to find these links

Accordian: By Andrew Huang
Tis the Season: By Nate Blaze
Web Weaver's Dance: By Asher Fulero

And...
Hall of the Mountain King by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. creativecommons.org/licenses/by/4.0

Source: incompetech.com/music/royalty-free/index.html?isrc=USUAN1200072

Artist: incompetech.com

Join the Discord: discord.gg/4tHeAkxNg7
Follow me on Twitch: twitch.tv/gameswthgabe

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Website: ambrosiogabe.github.io
Github: github.com/ambrosiogabe

Here are some books I recommend if you want to learn about game engine development more thoroughly. I do not profit off any of these sales, these are just some books that have helped me out :)

My Recommended Game Engine Books:
Game Engine Architecture: gameenginebook.com
Game Physics Cookbook (Read this before the next physics book): amazon.com/Game-Physics-Cookbook-Gabor-Szauer/dp/1787123669
Game Physics (Ian Millington): amazon.com/Game-Physics-Engine-Development-Commercial-Grade/dp/0123819768
Game Programming Patterns (Free): gameprogrammingpatterns.com

My Recommended Beginning Game Programming Books:
JavaScript Game Design: apress.com/gp/book/9781430247166

My Recommended Java Books:
Data Structures/Algorithms: amazon.com/Data-Structures-Algorithms-Java-6th-ebook/dp/B00JDRQF8C
LWJGL (Free, but I haven't read this thoroughly): lwjglgamedev.gitbooks.io/3d-game-development-with-lwjgl/content
BigO = Performance! And other lies programmers tell themselves!!Batch Rendering in LWJGL3 | Coding a 2D Game Engine in Java #11Generating Food | Java Snake Part 8Cameras and Rendering | Coding Geometry Dash in Java #8GLSL Shaders | Coding a 2D Game Engine in Java #8Placing Blocks | Coding Geometry Dash in Java #12Game Camera & Grid Lines | Coding a 2D Game Engine in Java #54Lists | Python for Absolute Beginners #8Game Camera OpenGL | Coding a 2D Game Engine in Java #7Multi-Select in Level Editor | Coding Geometry Dash in Java #26Goomba AI | Coding a 2D Game Engine in Java #52I Coded Minecraft in *Only* 3 MONTHS!!!!
GamesWithGabe |

BigO = Performance! And other lies programmers tell themselves!!

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