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...

What are some good Ubiquiti Unifi AP alternatives people go for these days when buying Wi-Fi 6/7 APs?

I wrote about why we should treat German string encoding/StringViews as Just Another Encoding™

Remember Epic Meal Time? I feel old.

New Pendulum album. Yay!

Tomorrow, the premiere of this year's Lightning Talks at Systems Distributed! Hosted by @nvais.bsky.social, five speakers selected on Day 1 took to the stage on Day 2, in a race against the gong... Join them on YT tomorrow, 10am PT / 1pm ET / 7pm CET youtube.com/watch?v=k58v...

Ok, I have a rant I have to let go of. If you generate a change to an open-source project fully with AI, didn't read, review, understand, and questioned it, then at least have the decency to say this on the PR description. You're stealing people's time by making them review it for you.

My favorite discovery of the day: Claude Code using Opus Plan Mode! That's exactly what I wanted! 🎉

Is anyone aware of a end to end monitoring pipeline for email? Like send an email every minute with a timestamp via SMTP and then use IMAP to read back the latest email and report that last seen timestamp. Would be similiar to blackbox exporter but for emails.

We're excited to share that the Parca Agent now works offline! Store CPU profiles locally when disconnected, upload when ready. Because not all computing happens in data centers. Read how we built it: www.polarsignals.com/blog/posts/2...

A much requested feature finally shipping! Now you can finally understand why your process is taken off the CPU, whether for timing reasons, for I/O reasons, or any of the many other possibilities!

Please join us in welcoming @polarsignals.com as a Gold sponsor of #rustconf25! Support from sponsors like Polar Signals helps @rustfoundation.org put on an amazing event for the #rustlang community. Learn more about Polar Signals at www.polarsignals.com & get ready to see them at #rustconf 🎉

We just made our Next.js builds 100% reproducible at Polar Signals! 🧊 Same code = same output, byte-by-byte every time. 🔍 Check out our practical guide: www.polarsignals.com/blog/posts/2...

Yeah, trust me, you want #continuousprofiling. 50% CPU improvement with a ~5-line code change. I often hear people say "we're not at that level of optimizing". I've not found one company this was true for, and you're missing out on opportunities like these.

THIS THIS AND THIS. Great post! 👏

🔥 Have you ever stared at a flame graph wondering why your app is slow? Using the new @PolarSignalsIO MCP, you can now ask "Why is my service slow?" and e.g. @anthropic.com's Claude Code or @cursor.com.web.brid.gy will analyze your production profiles and suggest code fixes.

The CfP for PromCon (Munich, Oct 21+22) is still open for two more days - please submit your @prometheus.io talks :) promcon.io/2025-munich/...

📔Writing our Rust database from scratch gave us a golden opportunity to implement deterministic simulation testing as a core feature. Learn about the architecture that gives us full control over DST ingredients. 🧊 www.polarsignals.com/blog/posts/2...

Reminder: The CfP for #PromCon (October 21+22 in Munich) is open! Please submit your @prometheus.io talks :) promcon.io/2025-munich/...

Incredible talk! First time we made the slide deck dark. 🖤

There it is.

It's so nice to travel to a conference by train. 🧘‍♂️ #SD25

Off to Systems Distributed. See you in Amsterdam!

🚀 Dive into Parca, the open-source Continuous Profiling tool that helps you optimize your application's performance. 🚀 Understand runtime costs for CPU, memory, disk, and network. Let’s get started! @rawkode.dev

Everytime there's confetti in a concert video the bitrate shows instantly. It's quite funny to see.

Hey ☁️ #cloudnative ☁️friends!! ✨ big news from Apple today ✨ Want a native way to build Linux containers on Apple hardware? Now you can ✅ — check out the new open source #containerization framework: 👏 github.com/apple/contai... 👏 github.com/apple/contai... Fun fact: it’s written in @swift.org 🙌

Good morning San Francisco! Join us for another day at @aidotengineer.bsky.social today! Looking forward to all the conversations!

BART. Still the loudest train ever.

BER ✈️ SFO I'm on my way to ai.engineer Looking forward to meeting all the practitioners! Let's meet if you want to discuss GPU, CPU and memory performance!

⚡ Flamecharts/Iciclecharts are now available on all workloads, not just the Polar Signals GPU profiling experience! Check out the blog on what Flamecharts/Iciclecharts are and how to use them on Polar Signals! 🧊 www.polarsignals.com/blog/posts/2...

We're live for today's Prometheus Meetup! youtube.com/live/Wh9cARh...

Join us later today for the Berlin @prometheus.io Meetup. Björn will talk about the state of metadata in the Prometheus ecosystem, and ‪@juliusv.com will talk about the new prometheus.io homepage! community.cncf.io/e/m5ptwz/

No biggie, just Wikimedia running Pyrra: slo.wikimedia.org 😳😎🥳 Pretty great feeling to see how far this free time project has come. Wow.

🔬 We've been researching PGO with sampling profiling data for Rust (and LLVM more generally) at Polar Signals. Check out what Tommy has found so far and stay tuned for the next posts in this series! 🧊 www.polarsignals.com/blog/posts/2...

Next week the Berlin Prometheus Meetup is happening again! 🎉 We're looking for speakers! If you want to speak or have a request for a talk (such that I can find appropriate speakers for a topic) check our page for the link to submit. community.cncf.io/events/detai...

The agenda for Systems Distributed is out now! Join us in Amsterdam for two days of talks, film references, and systems... distributed! systemsdistributed.com/agenda

Does anyone have a recommendation for an immigration attorney for someone from the US getting a work visa in Spain, and is hitting some processing delays they don't understand?

🦀 Today, we're introducing the ability to attach arbitrary metadata to Profiling data with Async-Rust! Use this to attach the distributed tracing ID and more to your Profiling data! 🔍 www.polarsignals.com/blog/posts/2...

Using Python or other interpreted languages? This is for you! 🤗

We're updating our pricing to make it more predictable and transparent for customers!

Cloud Mate. I just typed that instead of Club Mate, clearly in need of more caffeine.

Your innie enjoys one week of #KubeCon

What? Breaking metrics? 😱 @bwplotka.dev

Good morning #KubeCon! We will be back at our booth S480! Learn about continuous profiling for CPUs, GPUs, and memory! Time to discover the Performance Engineer in you!

Incredibly proud of @metalmatze.de and team for launching this! Speed of training models and latency of inference for AI are major competitive advantages. This is going to be huge for AI companies!

I'm incredibly excited about what we have shipped so far, but we're far from done! It's been really fun diving into the world of GPUs these past few months.