iiinova — where your digital self keeps evolving

Matthias Loibl @metalmatze.de · 19/09/2026

I keep seeing things about the iPhone Duo and hearing that the buttons move to the right side of the screen so they're easier to reach. Well, I'm left-handed, so it's probably the opposite for left-handed people, then? They made it a lot worse. 😄 Does anyone know anything about that?

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Dash0 @dash0.com · 17/08/2026

Dash0 welcomes Polar Signals to the team. They built the leading continuous profiler for cloud native workloads, with GPU and CUDA support, and created Parca, the open source profiling project behind it. Profiling will live natively in Dash0, next to traces, metrics and logs. eu1.hubs.ly/H0xG-d70

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Matthias Loibl @metalmatze.de · 17/08/2026

Today is a big day! The last 5+ years at @polarsignals.com have been incredible! I couldn't be more excited to be part of what's next for @dash0.com observability!

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Matthias Loibl @metalmatze.de · 02/08/2026

Little experiment: Make percent for pyrra.dev responsive to show as many decimal places as possible. Trailing .000 are trimmed and decimal places are only rounded if not enough space is left.

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Matthias Loibl @metalmatze.de · 28/07/2026

Super fun to see all sorts of things with. Like, you can see a @prometheus.io rule evaluation followed by GC and other interesting things.

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Polar Signals @polarsignals.com · 14/07/2026

The Polar Signals profiler got a major upgrade. New dashboard, and everything is faster and smoother 🚀 We can’t wait for you to try it out! Here's what's new and how we did it: www.polarsignals.com/blog/posts/2...

polarsignals.com

Our new and faster profiler dashboard | Polar Signals

Learn more about our new and improved profiler dashboard.

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Matthias Loibl @metalmatze.de · 30/06/2026

Working at Polar Signals, I always come at things with a performance mindset. Running evals on our MCP turned out to be exactly that: performance engineering but for the model's context. Measuring the profiling skill's efficiency and effectiveness has been the real fun these past weeks. 😎

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Polar Signals @polarsignals.com · 24/06/2026

Two of our favorite things on the blog today: 1) Experimenting with cutting-edge GPU-accelerated columnar storage. 🚀 2) Dogfooding our GPU Profiler. 📊 Let us know what you think! www.polarsignals.com/blog/posts/2...

polarsignals.com

My Journey Optimizing a CUDA Kernel with Polar Signals | Polar Signals

A storage engineer's descent into warp stalls, memory throttles, and aligned stores

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Polar Signals @polarsignals.com · 18/06/2026

Ever wondered how a profiler knows which JavaScript function is hot when V8 compiles your code three different ways? Brennan went deep on unwinding and symbolizing V8 stacks across Sparkplug, Maglev, and TurboFan. The detective work behind every flame graph. 🔥 www.polarsignals.com/blog/posts/2...

polarsignals.com

Profiling Internals: JavaScript on V8 | Polar Signals

How Profilers Work: Part 3

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Polar Signals @polarsignals.com · 10/06/2026

🚀 Launching today: GPU PC sampling in production. Instruction-level profiling telling you why and where warps stall. Whether it is memory latency, scoreboard waits, or barriers. 🧊 Previously NSight-only territory. Now running in prod with low overhead. www.polarsignals.com/blog/posts/2...

polarsignals.com

Open-Source Low-Overhead NVIDIA CUDA PC Sampling | Polar Signals

And how we made it happen

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Matthias Loibl @metalmatze.de · 29/04/2026

Forgejo has been building federation so I can use my instance to talk to your instance to work on software together. These things exist. Just no one knows. forgejo.org/2023-01-10-a...

forgejo.org

Answering Forgejo federation questions

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Alfonso Subiotto @asubiotto.com · 28/04/2026

We've been working on a major schema migration at @polarsignals.com that has unlocked some pretty wild improvements. Apart from a 50% (!!) reduction in storage size thanks to logical compression in vortex.dev, there has been a dramatic improvement in query performance.

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OpenTelemetry @opentelemetry.io · 27/04/2026

OpenTelemetry ❤️ Prometheus! The #OTel and #Prometheus projects are strengthening interoperability. 🛠️ Building with both? Check out our client library comparison, plus updates on Prometheus compatibility and exporter spec stabilization. Links in 🧵! 🗳️ Running both? Take our survey! buff.ly/XhVm0Fg

docs.google.com

Survey: 🔭OpenTelemetry ↔ 🔥Prometheus Interoperability

Privacy notice: The data collected in this survey will be anonymised and publicly shared in the GitHub repositories prometheus-community/ux-research and opentelemetry/sig-end-user under the CC0 1.0…

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Matthias Loibl @metalmatze.de · 27/04/2026

Best GitHub outage yet. 🤣 🧘‍♂️🧘🧘‍♀️

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Manoj Vivek @manojvivek.bsky.social · 15/04/2026

Your Node.js profiles on @polarsignals.com just got personal!

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Matthias Loibl @metalmatze.de · 10/04/2026

The future! This will be a thing, for sure. Pay for more MCP calls.

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Polar Signals @polarsignals.com · 02/04/2026

"I'm really excited about access control for agents." We caught up with @pst.blue at #KubeCon EU. He's diving into how the cloud native ecosystem is shaping infrastructure for the agentic age. #CloudNative #Agents www.youtube.com/shorts/ETc8j...

youtube.com

Philipp Strube at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

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Matthias Loibl @metalmatze.de · 02/04/2026

99.5% is slightly better than 3.5 hours in 28 days if we’re talking uptime. Really not great.

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Polar Signals @polarsignals.com · 01/04/2026

We caught up with @mauilion.dev at #KubeCon EU. He was fired up about @rejekts.io pulling 220 people when sponsorship dried up, and noticing AI hype tempering with more energy going into infra, like virtualization. #Kubernetes #CloudNative youtube.com/shorts/zhz0X...

youtube.com

Duffie Cooley at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

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Polar Signals @polarsignals.com · 30/03/2026

We caught up with @bwplotka.dev at KubeCon EU. He's excited about semantic conventions across OTel and Prometheus finally becoming practical, and AI tools changing how open source is built. #KubeCon #OpenTelemetry #Prometheus youtube.com/shorts/QF3Yk...

youtube.com

Bartek Plotka at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

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Frederic Branczyk @brancz.com · 26/03/2026

A historic step for profiling within the OpenTelemetry project!

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Polar Signals @polarsignals.com · 26/03/2026

We caught up with Felix earlier this week at KubeCon EU, and TODAY he's presenting on the OpenTelemetry profiling signal reaching alpha, together with Florian. 📍 15:15, Hall 8, Room F Profiling as a first-class signal in OTel is huge. Don't miss it!

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Matthias Loibl @metalmatze.de · 25/03/2026

The @Prometheus.io Contributor Fest is underway! Let's learn how to contribute and review PRs for Prometheus!

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Matthias Loibl @metalmatze.de · 24/03/2026

For the next hour and a half (until 16:30) I'll be at the Prometheus project booth! Come around to talk Prometheus, SLOs and more or just say hi. See you!

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Matthias Loibl @metalmatze.de · 24/03/2026

For the next hour and a half (until 16:30) I'll be at the @Prometheus.io project booth! Come around to talk Prometheus, SLOs and more or just say hi. See you!

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Matthias Loibl @metalmatze.de · 18/03/2026

For local development you don't need a dedicated MCP server for CockroachDB, Prometheus, or Jaeger. Just exec into the container and run commands directly. SQL in cockroach, wget the Prometheus HTTP API, same for Jaeger. 😏

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Polar Signals @polarsignals.com · 12/02/2026

🤖 Using the Polar Signals MCP just got even easier. Check out how to use it with your favorite AI agent. 🧊 www.polarsignals.com/blog/posts/2...

polarsignals.com

Introducing Oauth for AI Agents

Use your favorite AI agent securely with Polar Signals Profiling

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Polar Signals @polarsignals.com · 01/02/2026

Polar Signals at #FOSDEM 2026 day 2! Both talks in the Rust room. Profiling Rust applications with Parca Brennan at 12:30 @ UB2.252A (Rust) fosdem.org/2026/schedul... Frederic at 16:00 @ UB2.252A (Rust) Random seeds and state machines: An approach to DST in Rust fosdem.org/2026/schedul...

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Matthias Loibl @metalmatze.de · 31/01/2026

OCI image support coming to systemd. I'm getting strong rkt flashbacks. 🥲

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Polar Signals @polarsignals.com · 31/01/2026

Polar Signals at #FOSDEM 2026 day 1! Tommy at 12:30 @ H.1308 (eBPF) OOMProf: Profiling Go heap memory at OOM time fosdem.org/2026/schedul... Thor at 17:25 @ UB2.252A (Databases) From Disks to Distributed: Our Journey of Database Evolution in the Cloud fosdem.org/2026/schedul...

fosdem.org

FOSDEM 2026 - OOMProf: profiling Go heap memory at OOM time

OOMProf is a Go library that installs a eBPF programs that listen to Linux kernel tracepoints involved in OOM killing and records a memory profile before your Go program is dead and gone. The memory…

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Matthias Loibl @metalmatze.de · 30/01/2026

Unfortunately, I won't be joining #FOSDEM. I got sick late last week and decided not to contribute to FOSDEM flu and canceled my trip. Have fun everyone! Next conference!

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Matthias Loibl @metalmatze.de · 30/12/2025

Let's scale Pyrra even further!

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Matthias Loibl @metalmatze.de · 23/12/2025

Imagine not having continuous profiling and sleeping on this. Wild.

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Alfonso Subiotto @asubiotto.com · 15/12/2025

Happy to share that I've been nominated to the Vortex Technical Steering Committee! It's been fun and productive switching to Vortex from Parquet as our storage format @polarsignals.com and I'm excited to continue contributing to the Vortex project. vortex.dev/blog/novembe...

vortex.dev

November Bulletin | Vortex Blog

Overview of all work happening in Vortex

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Frederic Branczyk @brancz.com · 10/12/2025

Next.js 16 + turbopack took our frontend builds from 5-7m down to just over 2m. This means faster speed of iteration in development and faster CI. Performance is UX. Performance is DX. Performance is a feature.

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Polar Signals @polarsignals.com · 10/12/2025

Are USDTs the key to unlock the future of low level tracing? Maybe! Read all about how we implemented them and how we plan on using them to breath new life into observability! www.polarsignals.com/blog/posts/2...

polarsignals.com

USDT Probes: A Deep Dive

How we added USDT Probe support to Parca Agent

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Thor @thorfour.dev · 04/12/2025

Standing on the shoulders of giants. We built our new database on open source projects.

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Polar Signals @polarsignals.com · 25/11/2025

We completed a major project to switch our storage file format from Parquet to Vortex 🌪️ resulting in 70% average query performance improvement across the board 🚀 Learn more about how rethinking interface-imposed limitations unlocked these gains in our latest blog post 👇

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Matthias Loibl @metalmatze.de · 21/11/2025

"Stell dir vor du installierst nix." Germans talking about installing NixOS is very funny. 😀

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Polar Signals @polarsignals.com · 19/11/2025

Ever wanted to filter flame graphs by distributed trace ID? Or by anything else? In Node.js, now you can! www.polarsignals.com/blog/posts/2... Happy Profiling! 🚀🐻‍❄️

polarsignals.com

Custom Labels for Node.js

Correlate Application-Specific Data With Profiles

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Manoj Vivek @manojvivek.bsky.social · 04/11/2025

Was digging into JS source maps recently and had a lot of fun writing this post, especially the interactive bits. 🤓

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Frederic Branczyk @brancz.com · 31/10/2025

We made a bit of a dumb thing early on at Polar Signals where we accidentally created a critical GCS bucket as multi-region. But today I learned about Bucket relocation (launched in 2024). Very timely! docs.cloud.google.com/storage/docs...

docs.cloud.google.com

Bucket relocation | Cloud Storage | Google Cloud Documentation

This document describes the Cloud Storage bucket relocation service that relocates buckets serverlessly between geographic locations. Using bucket relocation, you can move an existing bucket from one…

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Matthias Loibl @metalmatze.de · 22/10/2025

Previously, we've correlated GPU metrics with CPU profiles, now we can actually show you GPU time! This is suuuuuper exciting! 🚀

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Matthias Loibl @metalmatze.de · 22/10/2025

Pyrra v0.9 is here! 🎉 github.com/pyrra-dev/py... It's incredible to see the amount of diverse contributions to the project! I didn't even realize it was that way until the release was published! Incredible to see! Thank you, everyone!

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Matthias Loibl @metalmatze.de · 21/10/2025

Native Histogram considered stable in @Prometheus.io going forward! 🥳 Props to all the people who worked on this for years!

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Matthias Loibl @metalmatze.de · 21/10/2025

This talk is rage baiting me hard. 😂 #PromCon

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