🔥Flame charts are now GA for all CPU profiles on Polar Signals Cloud. X-axis = wall-clock time, so periodic GC, phase shifts, and lock contention show up as patterns instead of getting averaged out. www.polarsignals.com/blog/posts/2...

Introducing Flame Charts for All CPU Profiles | Polar Signals

The temporal dimension flame graphs might be missing.

polarsignals.com

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...

Our new and faster profiler dashboard | Polar Signals

Learn more about our new and improved profiler dashboard.

polarsignals.com

What if loading a data lake was as simple as writing a SQL query? In our latest engineering deep dive, we explain how we explored loading Great Lakes tables using DataFusion SQL queries in an effort to increase performance. 🚀 🧊 Read the full post: www.polarsignals.com/blog/posts/2...

Loading Lakes | Polar Signals

Optimizing loading Great Lake tables with DataFusion

polarsignals.com

Less context, better answers. 🔥 The new @polarsignals.com MCP makes smaller, more effective tool calls and iterates on what's actually worth querying. www.polarsignals.com/blog/posts/2...

Iteratively explore your flame graphs with the MCP sandwich tool | Polar Signals

Don't bloat your LLM's context. Let it iteratively explore the parts of your flame graphs that actually matter.

polarsignals.com

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...

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

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

polarsignals.com

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...

Profiling Internals: JavaScript on V8 | Polar Signals

How Profilers Work: Part 3

polarsignals.com

🚀 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...

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

And how we made it happen

polarsignals.com

New Blog Alert! Learn how we overcame eBPF limits to unwind deeply nested PyTorch training stacks and learned some cools things along the way: www.polarsignals.com/blog/posts/2...

Python Zebra Stacks | Polar Signals

Unwinding Deep PyTorch Training Stacks with eBPF

polarsignals.com

🤖Using Polar Signals Cloud and Claude Code to autonomously optimize your code every day! 📈 Also: Check out our new website! What do you think? www.polarsignals.com/blog/posts/2...

Tired of Node.js flamecharts full of `a`, `m`, and `_0x3f2`? We just shipped source maps support for Node.js profiles in Polar Signals Cloud. Just add a plugin to your build pipeline, and your profiles show the real code. Know more: www.polarsignals.com/blog/posts/2...

Do more with less. | Polar Signals

Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.

polarsignals.com

"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...

Philipp Strube at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

youtube.com

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...

Duffie Cooley at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

youtube.com

We caught up with @jnsgr.uk at KubeCon EU. He came to announce that @canonicalltd.bsky.social is joining the Rust Foundation and spotted a new Kubernetes sandbox primitive for running long-lived agents with persistent identity. #KubeCon #Kubernetes #Rust youtube.com/shorts/b9TxZ...

Jon Seager at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

youtube.com

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...

Bartek Plotka at KubeCon EU 2026 in Amsterdam

YouTube video by Polar Signals

youtube.com

🥳 OpenTelemetry Profiling goes Alpha! Check out how to use it with open source Parca and Polar Signals Cloud! 🧊 www.polarsignals.com/blog/posts/2...

Do more with less. | Polar Signals

Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.

polarsignals.com

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!

Ever wondered how our CPU profiler works, at a hardware and kernel level? Now you can learn more by reading our latest blog post: "Profiling Internals: Hardware Timers and eBPF". Part 2 in the "How Profilers Work" series. www.polarsignals.com/blog/posts/2...

Profiling Internals: Hardware Timers and eBPF

How Profilers Work: Part 2

polarsignals.com

"It's absolutely fascinating and overwhelming how big the community is." @s-urbaniak.bsky.social on his KubeCon experience - plus a preview of his talk on writing operators the smart way, not the hard way. Wednesday, 15:00 PM. #KubeCon #Kubernetes #CloudNative

📍 Chronosphere booth, 10:30 - 12:30. Come see Polar Signals continuous profiling on Kubernetes in action. Let's talk observability, CPU/GPU profiling, eBPF & MCP!

At #QConLondon? Check out @asubiotto.com's talk on how we test our database(s) in an effort to not let critical bugs ever hit production! Today at 10:35AM GMT. Location Windsor (5th Fl.) Track Native Languages - and Wasm qconlondon.com/presentation...

QCon London 2026 | A Deterministic Simulation Testing (DST) Journey: From WASM in Go to State Machines in Rust

Get practical inspiration and best practices on emerging software trends directly from senior software developers at early adopter companies.

qconlondon.com

🚀 Introducing the Polar Signals VS Code extension! See CPU time, memory allocations, and more as inline annotations, right next to your code. Works with Polar Signals Cloud and self-hosted Parca. www.polarsignals.com/blog/posts/2...

Do more with less. | Polar Signals

Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.

polarsignals.com

🔐 With a growing number of customers and more diverse customers, came the need for a more flexible authorization system that can represent any organization. That's what we're shipping today. Check it out on the blog! 🧊 www.polarsignals.com/blog/posts/2...

Introducing IAM

Represent your organization in Polar Signals

polarsignals.com

Ever wondered how profilers work? Check out part one in our series, where we dive into the nitty-gritty details. Let us know what you think! www.polarsignals.com/blog/posts/2...

Call Stacks and Unwinding 101

How Profilers Work: Part 1

polarsignals.com

🤖 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...

Introducing Oauth for AI Agents

Use your favorite AI agent securely with Polar Signals Profiling

polarsignals.com

ICYMI We have a recap of what we talked about at #FOSDEM! 🧇 🧊 If you're interested in databases, eBPF or Rust this is worth checking out! www.polarsignals.com/blog/posts/2...

ICYMI: Polar Signals at FOSDEM

Recap of the talks we gave at FOSDEM developer conference

polarsignals.com

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...

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 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…

fosdem.org

Symbolization issues don’t have to be mysterious. Polar Signals Cloud now shows exactly what’s happening with your debuginfo, right from the flamegraph frame: www.polarsignals.com/blog/posts/2...

How to check your debuginfo status in Polar Signals Cloud

A faster and easier way to troubleshoot debuginfo processing in Polar Signals Cloud.

polarsignals.com

📢 It’s a new year so we’re announcing something new which is the Sandwich view: A way to visualize a function’s callers and callees side by side for better debugging and performance work. Read more about it here: www.polarsignals.com/blog/posts/2...

Introducing the Sandwich View

A new way to visualize a function’s callers and callees side by side.

polarsignals.com

We cut cross-zone traffic for SLO monitoring by 90% using Prometheus subquery optimization. The trick: pre-aggregate data locally instead of shuffling 55M raw samples to Thanos queriers. Coming soon to Pyrra! 🚀 www.polarsignals.com/blog/posts/2...

Do more with less. | Polar Signals

Polar Signals Cloud is an always-on, zero-instrumentation continuous profiling for CPU, GPU, and Memory that helps improve performance, understand incidents, and lower infrastructure costs.

polarsignals.com