Devtrovert

Devtrovert

Home
Golang
System Design
Archive
Newsletters
About

October 2024

Go EP20: sync.Cond, the Most Overlooked Sync Mechanism
In Go, sync.Cond is a synchronization primitive, though it’s not as commonly used as its siblings like sync.Mutex or sync.WaitGroup. You’ll rarely see…
 • 
Phuong Le
Go EP19: sync.WaitGroup and The Interesting Alignment Problem
When you have multiple tasks that can run concurrently, you often use goroutines to handle them.
 • 
Phuong Le
Go EP 18: Slice Is Basically an Array Wrapper
When you create a slice, you're really just making a 'window' into an existing array. So, any changes you make to the slice can also change the…
 • 
Phuong Le

September 2024

Go EP17: The Architecture of Go's sync.Pool
Instead of throwing these objects away after each use, which would just make the garbage collector work harder, we’re better off keeping them in a pool.
 • 
Phuong Le
Go EP16: How Go Handles Key-Value Pair Storage in Maps
Have you ever set a ‘hint’ for a map and wondered why it’s called a ‘hint’ and not something simple like length, like we do with slices?
 • 
Phuong Le
Go EP 15: sync.Mutex - Normal and Starvation Mode
Mutex, or MUTual EXclusion, in Go is basically a way to make sure that only one goroutine is messing with a shared resource at a time. This resource can…
 • 
Phuong Le

August 2024

June 2024

GO EP12: Go.mod File - Boring Stuff Made Easy
There are several directives we will talk about, including: module, go, require, exclude, replace, retract, and a new one, toolchain."
 • 
Phuong Le
GO EP11: Go Commands - go get, go mod tidy,...
The go.mod file, or go module, is basically a way to organize and manage a bunch of Go packages together.
 • 
Phuong Le
GO EP10: GOROOT, GOPATH, GOCACHE
For instance, you might wonder what `GOPATH` and `GOROOT` mean, or what happens when you use commands like `go get` or `go mod tidy`.
 • 
Phuong Le
2
© 2025 Phuong Le
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture