5 posts
dropbox Improving storage efficiency in Magic Pocket, our immutable blob store Magic Pocket is the core Dropbox storage system—a custom-built, exabyte-scale blob storage system designed for durability, availability, scale, and efficiency. It holds user content, which means it must be sa…
datadog Nayef Ghattas When Go 1.24 was released in early 2025, we were eager to roll it out across our services. The headline feature—the new Swiss Tables map implementation—promised reduced CPU and memory overhead. Our story begins while the new version was being rolled out internally.…
datadog Nayef Ghattas In Part 1: How we tracked down a Go 1.24 memory regression across hundreds of pods, we shared how upgrading to Go 1.24 introduced a subtle runtime regression that increased physical memory usage (RSS) across Datadog services. We worked with the Go community to iden…
datadog Christophe Nasarre In Part 1 of this series, I presented a high-level overview of the architecture, implementation, and initialization of Datadog's .NET profiler, which consists of several individual profilers that collect data for particular resources. I went on to discuss prof…
datadog Christophe Nasarre The Profiling Engineering team at Datadog develops profiling tools for various runtimes, including Microsoft .NET. This blog post is the first in a series explaining the technical architecture and implementation choices behind our .NET profiler. Along the way,…