💥 Tech Talks Weekly #76: weekly edition + bonus: 🔥 11 most watched Kubernetes talks of 2025 (so far)

Sep 25, 2025

Happy Thursday 👋

Warm welcome to Tech Talks Weekly #76! We have lots of new really good talks on the list, so get ready!

I’ve just posted a compilation of the most-watched Kubernetes talks of 2025 (so far). Check it out!

Similarly, earlier this month, I’ve created a similar compilation for Java talks which you can access here.

Before we start:
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Now, let’s jump right in!

🏆 Featured talks of the week

Here are our top recommendations this week. Make sure to watch or bookmark!

“K8s CPU Limits Deconstructed - Bill Kennedy” ⸱ +300 views ⸱ 18 Sep 2025 ⸱ 00h 55m 16s
tldw: You’ll learn about how the Go scheduler works and the effect of CPU and I/O-bound workloads. By experimenting with Kubernetes and Go configurations, the speaker demonstrates that the default Go runtime setting can lead to inefficient use of CPU resources. You’ll see that adjusting Go’s concurrency settings, based on workload characteristics, can significantly improve your app performance.
“What’s coming in Go 1.25 - Daniel Marti” ⸱ +5k views ⸱ 17 Sep 2025 ⸱ 00h 51m 25s
tldw: Improved test performance, a local documentation server with go docs/http, and streamlined default Go binaries to reduce release archive sizes. Go version-m now supports JSON output, and significant performance improvements come from features like the green tea garbage collector. Several updates enhance JSON usage and introduce safer file operations. This was just the tip of the iceberg, so I recommend watching the talk.
“How Just Eat uses tooling to deploy Go micro-services in minutes - Ainsley Clark” ⸱ +600 views ⸱ 18 Sep 2025 ⸱ 00h 42m 14s
tldw: At Just Eat, they’re deploying Go microservices very fast using a toolkit called GoKit. You’ll learn how this tool streamlines the creation and management of services across a massive scale. The talk covers the move from PHP to Go, highlighting numerous benefits.
“The Quest for Speed: Journey to 50% Better P99 Times with Go - David Vella” ⸱ +500 views ⸱ 17 Sep 2025 ⸱ 00h 50m 43s
tldw: Addressing performance bottlenecks identified through profiling, implementing Zstd compression for data, and optimizing Go’s CPU and memory allocations. The speaker also mentioned the benefits of migrating to ARM processors for better efficiency.
“”MCP for dummies: Feed more context to LLM” - Tarun Jain (PyCon AU 2025)” ⸱ +200 views ⸱ 21 Sep 2025 ⸱ 00h 31m 51s
tldw: You’ll learn how MCP acts as a universal adapter by simplifying connections to varied tools like databases or even Google Calendar. The speaker covers building MCP Agents and servers and addresses MCP’s security challenges.
“GeeCON 2024: Alina Yurenko - Going AOT: Everything you need to know about GraalVM for Java” ⸱ <100 views ⸱ 18 Sep 2025 ⸱ 00h 49m 50s
tldw: You’ll learn about the adoption of GraalVM in the Java ecosystem and its advantages, such as converting Java applications to native executables for better startup times and reduced mem usage. The session addresses the processes involved in building, deploying, and optimizing these applications for performance and latency while ensuring compatibility with frameworks and libraries.
“The Truth About Observability Metrics: Why Yours Are Lying To You” ⸱ +400 views ⸱ 22 Sep 2025 ⸱ 00h 48m 34s
tldw: You’ll learn how common metrics like health, utilization, and performance can often be misleading. With examples from the speaker’s career, he emphasizes that precision is hugely important in metrics sampling intervals and proper hardware instrumentation.

📆 New talks

Here’s the complete list of all the talks published since the last Tech Talks Weekly issue, grouped by conference, and ordered by the number of views for your convenience.