Understanding how your data structures interact with hardware is one of the most powerful ways to improve application performance. This blogpost explores how CPU caches influence speed and how …
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October 21, 2025
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10 min read
Getting Friendly With CPU Caches
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Aug 14, 2018
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3 min read
Creating the Art for Gopher Kart
Go Gopher GopherCon GopherKart
In the months leading up to GopherCon, my wife Jamilet and I had come up with the idea of creating a “small” browser-based game for the convention using the racing …
Jun 27, 2018
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6 min read
Ultimate Go Service
Introduction I teach a class called Ultimate Go. The class is three days long and teaches you the history, mechanics and semantics of the Go programming language. The …
Apr 28, 2018
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5 min read
Bounds Check Elimination In Go
Introduction One day I was talking to Damian Gryski in Slack about some performance improvements he made to his go-metro package. When I first looked at the changes I was …
Mar 23, 2018
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12 min read
Interface Values Are Valueless
Introduction I’ve been seeing a lot of question about interfaces lately on Slack. Most of the time the answers are technical and focus on implementation details. …
Feb 20, 2018
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17 min read
Focus On Being Precise
Introduction I was guided for many years to write functions that are generalized and to create layers upon layers of abstraction so things don’t break as business …
Jan 22, 2018
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18 min read
Escape-Analysis Flaws
Prelude It will be helpful to read this four-part series first on escape analysis and data semantics. Details on how to read an escape analysis report and pprof output …
Oct 24, 2017
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22 min read
The Behavior Of Channels
Introduction When I started to work with Go’s channels for the first time, I made the mistake of thinking about channels as a data structure. I saw channels as a queue …
Jul 15, 2017
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10 min read
Interface Semantics
Prelude If you want to put this post in some better context, I suggest reading the following series of posts, which lay out some other fundamental and relevant design …
Jun 27, 2017
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8 min read
For Range Semantics
Prelude These are good posts to read first to better understand the material presented in this post:
Index of the four part series:
Language Mechanics On Stacks And …