Announcing Mockery v3
Mockery v3 will make obsolete all other interface-based code generation frameworks that currently exist in the Go community. A bold statement you might say? Fortunately, I have quite the justification for this.
Golang¶
Profile Guided Optimizations in Go
In this post, we'll explore Profile Guided Optimizations (PGO) introduced in Go 1.20 and how they can be effectively used to improve the performance of your production applications. PGO is a compiler optimization technique that allows you to tune the performance of your Go applications in an environment- and workload-specific way. The profiles themselves are simple metadata files that contain information on what functions are called, how often they're called, what system calls are used, and generally what the computational profile is of your application. This information can be used by the compiler to better inform what sorts of optimizations are useful in your specific environment and workfload.
Analyzing Go Heap Escapes
In this blog post, we discover how you can analyze what variables the Go compiler decides should escape to the heap, a common source of performance problems in Golang. We'll also show how you can configure the gopls language server in VSCode to give you a Codelens view into your escaped variables.
Introducing Mockery's New packages Feature
vektra/mockery is a Go package that auto-generates mock implementations of interfaces in your project. For those not familiar with what mockery is, please take a look at its documentation page. I took over the project in 2020 and have overseen a number of significant feature updates to the code. The most recent of these is a feature I call packages, and it's one I'm most proud of due to the enormous benefits it grants you.