howardjohn's Blog

Software Engineer at Solo.io. I work on Istio and write about wherever that brings me. Opinions my own.

You should buy a faster CPU

In the past few years, CPUs have gotten really fast. Shockingly fast! Yet most people are stuck on previous generation mobile chips (whether by choice, or by their companies choice), at a huge detriment to their productivity. Meanwhile, AI coding subscriptions like Cursor are all the rage these days. I'll skip the debate on exactly how useful these tools are, and focus on the pricing. Cursor is $480/year for the team plan (the cheapest corporate plan), and other providers are around the same, setting a clear price point: engineering productivity is worth at least $500/year. ...

August 18, 2025 · 2 min

Your AI workloads still need a service mesh

AI workloads introduce new requirements on networking infrastructure, but the same core requirements that service meshes solve not only remain, but are exacerbated. Your AI workloads still need a service mesh - they just need a better one

August 5, 2025 · 5 min

[Solo.io Blog] Gloo Mesh, The 100 Million Pod Mesh

Gloo Mesh’s ambient multi-cluster mode sets a new benchmark for scalability.

February 5, 2025 · External Post

Exploring the new "go tool" support in Go 1.24

Go 1.24 introduces new support for "Tools", which allows easy consumption of tools (which are written in Go) as a dependency for a project. This could be anything from golangci-lint to protoc-gen-go. In this post, I will cover usage and limitations. Basic usage Adding a tool to a project is nearly the same as a standard runtime dependency, with the additional -tool flag: $ goimports # I don't have goimports yet! zsh: command not found: goimports $ go get -tool golang.org/x/tools/cmd/goimports go: added golang.org/x/mod v0.22.0 go: added golang.org/x/sync v0.10.0 go: added golang.org/x/tools v0.29.0 $ go tool goimports --help usage: goimports [flags] [path ...] Once we add a tool, we can access it by go tool <name>. ...

 · January 20, 2025 · 13 min

Ztunnel through two lenses

Is it a per-node proxy? Is it a sidecar? The reality is somewhere in between

January 16, 2025 · 3 min

[Solo.io Blog] Introducing Ambient Multi-Cluster Mode to Gloo Mesh

Reimagine service mesh with Istio’s ambient mode—lightweight, efficient, and scalable. Gloo Mesh now extends this innovation to multi-cluster environments, delivering unmatched reliability, simplicity, and scale.

January 15, 2025 · External Post

What happens when Ztunnel shuts down?

A deep dive into the termination behavior of Istio ambient mode and how it impacts your applications.

December 20, 2024 · 4 min

[AWS Blog] Transforming Istio into an enterprise-ready service mesh for Amazon ECS

How Istio ambient mode brings an enterprise-ready service mesh to Amazon ECS.

November 27, 2024 · External Post

Scaling Ambient In Your Sleep

How ambient achieves massive scale without toil.

November 15, 2024 · 3 min

"Zero to Value" in two steps with Istio ambient mode

When we first started designing what eventually became Istio ambient mode, there were many directions we explored, both in terms of implementation, and what our goals were. What resonated most, though, was that we wanted to provide an incredibly easy onboarding story for a subset of functionality. This subset, ultimately, was getting Mutual TLS deployed for all service-to-service communication within a cluster. I talk a bit more about this here. Since then, I think we have delivered on this promise... and gone even further! In this post, I wanted to highlight some of the areas that I think ambient helps deliver some serious value to users with minimal complexity. ...

November 5, 2024 · 5 min