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...

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.

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

Best GitHub outage yet. 🤣 🧘‍♂️🧘🧘‍♀️

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

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

"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...

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

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...

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...

A historic step for profiling within the OpenTelemetry project!

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!

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

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!

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!

Talk to me!

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. 😏

🤖 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...

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...

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

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...

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!

Let's scale Pyrra even further!

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

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...

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.

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...

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

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 👇

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

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! 🚀🐻‍❄️

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

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...

Time has come to rewatch Mr. Robot. 🖤

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

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!

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

This talk is rage baiting me hard. 😂 #PromCon

BER 🚄 MUC Oh my way to #PromCon! Excited to meet with the @prometheus.io community again! See you tomorrow!

Took advantage of the lunch break to replay this great talk by Alfonso Subiotto (@asubiotto.com) making the case for a State Machines based approach to Deterministic Simulation Testing, being used at @polarsignals.com, very interesting! Their inspiration for this: sled.rs/simulation

It's amazing to see a packed room for the talk of our very own @asubiotto.com, who is talking about Deterministic Simulation Testing at @eurorust.eu right now! 🦀 ⌛

We're having a blast at @eurorust.eu today! 🦀 Come by to talk about all things performance and continuous profiling!

So cool and parca.dev getting mentioned out of nowhere. Love to see it!

Amsterdam. The only major airport where the pilots join you for the same bus ride.

Pager Duty Princess @metalmatze.de

Working from the @polarsignals.com office today

Profile.

FINALLY Spotify getting it together. Been following that forum thread literally for YEARS.

Heartbreaking. Han was amazing!

We recently made some performance improvements to our Flame Graph by implementing backend pre-computation and viewport culling. Read more in our latest blog post: www.polarsignals.com/blog/posts/2...