VictoriaMetrics Observability Blog

Author
Category

Filter: Runtime

How Go’s Built-in Map Works with Swiss Tables

Go 1.24 replaced the built-in map’s bucket-based runtime with Swiss Tables. This article explains groups, control bytes, H1 and H2, probing, table growth, directories, deletion, load factor, and the experimental split-group layout.

Go Runtime Finalizer and Keep Alive

Go’s runtime package provides two intriguing features: Finalizers and KeepAlive, which help manage object lifecycle in unique ways. Finalizers let you attach cleanup functions to objects that run when they’re garbage collected. Meanwhile, KeepAlive serves as a tool to prevent premature object collection, especially when dealing with resources that need to stay alive longer than the compiler might expect.