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Polar Signals

polarsignals.com/blog

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Performance / optimizationDevOps / SRE / infrastructureLinux / Unix

’21’22’23’24’25’26
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125 from 9 Feb 2021 to 17 Aug 2026
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weekly (27 in the last year)
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company blog

2026 20

  1. Profiling NVIDIA CUDA in KubernetesThe easiest way to get started Profiling CUDA in KubernetesCUDANVIDIA+3DEC 18, 2025Author:Frederic Branczyk
  2. Optimizing SLO Performance at Scale: How We Solved Pyrra’s Query Performance on ThanosLearn how we optimized Pyrra’s SLO monitoring to handle high-cardinality metrics at scale, reducing cross-zone traffic and query times while maintaining 99% accuracy.PerformanceObservability+3DEC 30, 2025Author:Mat
  3. Introducing the Sandwich ViewA new way to visualize a function’s callers and callees side by side.Data VisualizationFrontend+3JAN 8, 2026Author:Yomi Eluwande
  4. How to check your debuginfo status in Polar Signals CloudA faster and easier way to troubleshoot debuginfo processing in Polar Signals Cloud.DebuginfoSymbolization+1JAN 22, 2026Author:Manoj Vivek
  5. ICYMI: Polar Signals at FOSDEMRecap of the talks we gave at FOSDEM developer conferenceFOSDEMFEB 10, 2026Author:Thor Hansen
  6. Introducing Oauth for AI AgentsUse your favorite AI agent securely with Polar Signals ProfilingAIClaude Code+5FEB 12, 2026Author:Frederic Branczyk
  7. Call Stacks and Unwinding 101How Profilers Work: Part 1Profiling.eh_frame+2FEB 19, 2026Author:Brennan Vincent
  8. Introducing IAMRepresent your organization in Polar SignalsSecurityProfiling+2FEB 24, 2026Author:Frederic Branczyk
  9. Introducing the Polar Signals VS Code ExtensionSee CPU time, memory allocations, and other profiling metrics as inline annotations directly in your source code.ProfilingVS Code+2MAR 10, 2026Author:Yomi Eluwande
  10. OCT 22, 2025Continuous NVIDIA CUDA Profiling In ProductionLow-Overhead Profiling of GPUs with USDT Probes and eBPFGPUProfiling
  11. Profiling Internals: Hardware Timers and eBPFHow Profilers Work: Part 2eBPFParca AgentMAR 25, 2026Author:Brennan Vincent
  12. MAR 26, 2026OpenTelemetry Profiling goes AlphaHow to use it with Polar Signals & ParcaOpenTelemetryProfiling+2
  13. JavaScript Source Maps Support in Polar Signals CloudPolar Signals Cloud now resolves minified JavaScript and TypeScript profiles back to original source code using source maps.JavaScriptSource Maps+3APR 15, 2026Author:Manoj Vivek
  14. Python Zebra StacksUnwinding Deep PyTorch Training Stacks with eBPFGPUPyTorch+2MAY 20, 2026Author:Tommy Reilly
  15. Open-Source Low-Overhead NVIDIA CUDA PC SamplingAnd how we made it happenGPUProfiling+2JUN 10, 2026Author:Tommy Reilly
  16. Profiling Internals: JavaScript on V8How Profilers Work: Part 3JavaScriptNode.Js+1JUN 18, 2026Author:Brennan Vincent
  17. My Journey Optimizing a CUDA Kernel with Polar SignalsA storage engineer's descent into warp stalls, memory throttles, and aligned storesGPUDatabases+1JUN 24, 2026Author:Alfonso Subiotto Marqués
  18. Iteratively explore your flame graphs with the MCP sandwich toolDon't bloat your LLM's context. Let it iteratively explore the parts of your flame graphs that actually matter.Performance AnalysisPerformance+3JUN 30, 2026Author:Matthias Loibl
  19. Loading LakesOptimizing loading Great Lake tables with DataFusionDelta LakeDatabases+1JUL 7, 2026Author:Thor Hansen
  20. Our new and faster profiler dashboardLearn more about our new and improved profiler dashboard and how we made the switch from SVG to CanvasProfilingData Visualization+1JUL 14, 2026Authors:Yomi E, Manoj V.

2025 33

  1. Introducing Flame Charts for All CPU ProfilesThe temporal dimension flame graphs might be missing.Flame ChartsFlame Graphs+5JUL 28, 2026Author:Matthias Loibl
  2. Polar Signals is Joining Dash0The next chapter for continuous profiling, our database, and the teamCompanyAUG 17, 2026Author:Frederic Branczyk
  3. Enhancing Our Writing Workflow: Adding Markdown Support to Sanity CMSHow we added a Markdown editor to our Sanity setup and other improvementsSanityMarkdownMAY 15, 2025Author:Yomi Eluwande
  4. Sampling PGOExploring how well the various forms of PGO workRustPGO+1MAY 20, 2025Author:Tommy Reilly
  5. Flame Charts: The Time-Aware Sibling of Flame GraphsA deep dive into the time-aware visualization that complements traditional flame graphs in performance profiling.Flame ChartsData Visualization+3MAY 28, 2025Author:Manoj Vivek
  6. Latest in Continuous Profiling for GPUsAttending ai.engineer 2025 in San FranciscoProfilingCorrelation+1JUN 4, 2025Authors:Matthias L, Brennan V.
  7. Best Laid PlansWhat we learned from building a databaseColumn DatabaseFrostDB+2JUN 10, 2025Author:Thor Hansen
  8. MAY 6, 2026Autonomous Optimization with Claude CodeOptimize your infrastructure autonomously every day with Claude Code and Polar SignalsAIClaude Code+1
  9. New year new databaseBringing what we've learned to our next generation database.Column DatabaseDatabasesJUN 18, 2025Author:Thor Hansen
  10. How Continuous Profiling reduces Engineering Debt and increases Application PerformanceApplication Performance engineering debt could live a long time without noticed and cause a significant overhead in developing new features, performance and the cost of operation.Continuous-ProfilingCloud Cost+2JU
  11. Deterministic Simulation Testing in Rust: A Theater Of State MachinesHow we designed our database for complete control over concurrency, time, randomness, and failure injection.TestingDeterministic Simulation Testing+3JUL 8, 2025Author:Alfonso Subiotto Marqués
  12. The MCP for performance engineeringIntroducing Remote MCP Support in Polar Signals CloudPerformance AnalysisPerformance+2JUL 17, 2025Author:Matthias Loibl
  13. Reproducible Builds with Next.js: A Practical GuideA step-by-step guide to achieving reproducible builds with Next.js.NextjsEngineering Practices+2JUL 23, 2025Author:Manoj Vivek
  14. Introducing Off-CPU ProfilingHow Off-CPU profiling works and how to get the most out of itProfilingSystem-Wide+1JUL 30, 2025Author:Frederic Branczyk
  15. Offline Mode for the Parca AgentCollect and upload profiles -- even without a network connectionProfilingParca AgentAUG 7, 2025Author:Brennan Vincent
  16. OOMProf - Profiling on the BrinkUsing eBPF to record your programs dying breathsBPFMemory Profiling+1AUG 13, 2025Author:Tommy Reilly
  17. Das Problem mit German StringsAnd why I don't want my database to choose the best encoding for me (yet)DatabasesColumn Database+3AUG 26, 2025Author:Alfonso Subiotto Marqués
  18. Parallel Flame Graph RenderingHow we improved our Flame Graph rendering by moving computation to the backend.Flame GraphsProfiling+1SEPT 3, 2025Author:Yomi Eluwande
  19. The Inner Workings of JavaScript Source MapsA deep dive into how JavaScript source maps work under the hood, with examples showing how all the pieces fit together.JavaScriptSource Maps+3NOV 4, 2025Author:Manoj Vivek
  20. Custom Labels for Node.jsCorrelate Application-Specific Data With ProfilesCorrelationJavascript+1NOV 19, 2025Author:Brennan Vincent
  21. Questioning an Interface: From Parquet to VortexBreaking free from the shackles of interface-imposed performance limitationsDatabasesDatafusion+2NOV 25, 2025Author:Alfonso Subiotto Marqués
  22. Great Lakes: A Delta Lake ForkOur updates to Delta Lake Table FormatColumn DatabaseDelta Lake+1DEC 4, 2025Author:Thor Hansen
  23. USDT Probes: A Deep DiveHow we added USDT Probe support to Parca AgenteBPFTracing+1DEC 10, 2025Author:Tommy Reilly
  24. Introducing Metrics AggregationAllows you to aggregate your profiling metrics across processes by grouping them by specific labels.MetricsData VisualizationAUG 1, 2024Author:Manoj Vivek
  25. Comparing Profiles is even more helpful now!We have shipped Relative ComparisonsPprofProfiling+2AUG 6, 2024Author:Matthias Loibl
  26. Parca + OpenTelemetry = Bright FutureThe Parca project is embracing OpenTelemetryBPFSystem-Wide+5AUG 13, 2024Author:Frederic Branczyk
  27. Debug Artifacts Status PageProvides an overview of the processing status of your project's debug artifacts, such as debuginfo, executables, or sources.DebuginfoSymbolization+1AUG 20, 2024Author:Manoj Vivek
  28. Introducing Simple Querying ModeA new and easier way to filter profiles on Polar Signals CloudProfilingUser Experience+1AUG 27, 2024Author:Yomi Eluwande
  29. Improved Views on Polar Signals CloudA new way to streamline profiling with predefined label namesViewProfiling+2SEPT 5, 2024Author:Yomi Eluwande
  30. Polar Signals Organizing and Attending PromCon 2024Polar Signals Is Organizing PromCon EU 2024 in Berlin!PrometheusMetrics+1SEPT 11, 2024Authors:Jah O, Matthias L.
  31. A Milestone Achieved: Polar Signals is SOC2 Type 1 Compliant!Polar Signals has achieved SOC2 Type 1 compliance, reinforcing our commitment to data security and customer trust.SecurityCompliance+1SEPT 25, 2024Author:Frederic Branczyk
  32. Custom Profiling Labels for Rust, Go, and C++Filter and aggregate profiles by whatever dimensions make sense for your applicationCorrelationGolang+2OCT 16, 2024Author:Brennan Vincent
  33. A Walk with LuaJITHow we scrape callstack information from the LuaJIT engine for profilingeBPFInterpreter+4NOV 13, 2024Author:Tommy Reilly

2024 17

  1. kubezonnet: Monitor Cross-Zone Network Traffic in KubernetesHow we got our cloud bill under controleBPFCloud Cost+5JAN 9, 2025Author:Frederic Branczyk
  2. Polar Signals Achieves SOC 2 Type 2 ComplianceReinforcing our unwavering commitment to robust securitySecuritySOC2JAN 14, 2025Author:Frederic Branczyk
  3. Doubling Throughput with Continuous Profiling and Optimization“68.37% of CPU [...] with a one-line code change [...] went down to 31.82%” Case StudyContinuous-Profiling+3FEB 11, 2025Author:Kanika Sharma
  4. Unlocking Efficient Memory Profiling and Faster Debugging"High tail latency for one of our customers, was diagnosed immediately by seeing a large On-CPU time span" Case StudyContinuous-Profiling+3FEB 18, 2025Author:Kanika Sharma
  5. turbopuffer: Consistently High Performance at ScaleCase Study: How turbopuffer leverages Polar Signals for Continuous ProfilingCase StudyContinuous-Profiling+2MAR 26, 2025Author:Kanika Sharma
  6. Maximize GPU Efficiency: Visualize, Analyze, and Optimize with PrecisionIntroducing Continuous GPU Profiling: Get Performance Insights Over TimeSystem-WidePython+2APR 1, 2025Author:Matthias Loibl
  7. Updated Pricing for Polar Signals CloudMaking Polar Signals Pricing more predictable and transparentPricingBillingAPR 9, 2025Author:Frederic Branczyk
  8. Correlate Profiling and Distributed Tracing in Async RustCorrelate profiles with arbitrary application-specific metadata in async Rust applicationsCorrelationTracing+1APR 17, 2025Author:Brennan Vincent
  9. Introducing Profiling GitHub ActionsRecord and view profiling data from GitHub Actions runs easier than ever before!GitHub ActionCI/CD+3APR 23, 2025Author:Frederic Branczyk
  10. Is Observability Data Sensitive?Why profiling data is low-risk, high-value observabilityProfilingSecurity+1MAY 5, 2025Author:Kanika Sharma
  11. Polar Signals at KubeCon EU 2023Attending KubeCon EU 2023 in Amsterdam, Netherlands.KubeConCommunityAPR 16, 2023Author:Kemal Akkoyun
  12. Correctly Profiling Node.js with Zero-InstrumentationOr: A tale of handling unexpected behaviour by the v8 runtime.Parca AgentInterpreter+8JUL 12, 2023Authors:Frederic B, Javier H. Coto
  13. View Profiling Data within CodeA look at an exciting new feature in Polar Signals Cloud: Source View.ProfilingContinuous-Profiling+1AUG 31, 2023Author:Frederic Branczyk
  14. Profiling Mojo 🔥A look at profiling Modular's Mojo language.ProfilingeBPF+5SEPT 7, 2023Author:Frederic Branczyk
  15. Profiling Python and Ruby using eBPFDive into the internals of profiling interpreted Python and Ruby code using eBPFeBPFInterpreter+7OCT 4, 2023Authors:Kemal A, Javier H. Coto
  16. Polar Signals Cloud is Generally AvailableWe're ready to share our product with the world!GAGenerally Available+4OCT 10, 2023Author:Frederic Branczyk
  17. Profiling Arm64 with eBPF in Parca AgentARMing your favourite DWARF UnwindereBPFParca Agent+3OCT 17, 2023Author:Sumera Priyadarsini

2023 21

  1. Announcing New Features on pprof.me: Previews and User HistoryPreview shared profiling data and keep a history of your shared profiles!PprofProfilingNOV 2, 2023Author:Frederic Branczyk
  2. Announcing the new "Views" feature on Polar Signals Cloud Scope requests with pre-defined filters and gain precise control over your profiling data!ProfilingView+1NOV 21, 2023Author:Yomi Eluwande
  3. The Cost of Go's Interfaces and How to Fix ItWhy dynamic dispatch is necessary and how to fix it with devirtualizing and PGO.GoGolang+5NOV 24, 2023Author:Frederic Branczyk
  4. New pprof.me Features: Profiling Data Comparison and Folded Stacks format supportVisualize differential Icicle graphs from two shared profiles.PprofProfiling+1DEC 6, 2023Authors:Frederic B, Manoj V.
  5. Embracing performance profiling: Canonical enables frame pointers in Ubuntu 24.04 LTSA Collaborative Leap Forward with CanonicalFrame PointersDWARF+2DEC 13, 2023Author:Frederic Branczyk
  6. Announcing Continuous Memory Profiling for RustDebugging memory leaks and usage systematically in Rustrustpprof+9DEC 20, 2023Authors:Frederic B, Brennan V.
  7. Introducing Billing Usage MetricsInsights into how much profiling data your projects are sending for an even more predictable billing.BillingEnterpriseJAN 23, 2024Author:Manoj Vivek
  8. Correlating Tracing with Profiling using eBPFHow we connected the worlds of tracing and profiling using Parca Agent, the eBPF-based profiler.ProfilingContinuous-Profiling+3MAR 5, 2024Author:Frederic Branczyk
  9. AI-driven Performance Optimizations, Exciting New Customers, Board Expansion, and $10.8m in Total Capital RaisedAIOptimizations+4MAR 12, 2024Author:Frederic Branczyk
  10. Polar Signals at KubeCon EU 2024Attending KubeCon EU 2024 in Paris, France.KubeConCommunityMAR 18, 2024Author:Matthias Loibl
  11. (Mostly) Deterministic Simulation Testing in GoHow we used WASM and some Go runtime modifications to run deterministic simulation tests against FrostDBTestingGo+5MAY 28, 2024Author:Alfonso Subiotto Marqués
  12. New and Improved Binary Filtering in Icicle GraphsWe've revamped our filtering by binary feature to be more intuitive and functional!Icicle GraphsContinuous-Profiling+3JUN 11, 2024Author:Yomi Eluwande
  13. Caller / Callee View in Table panelA new intuitive way to explore the control flow through specific functions in your application.Data VisualizationPerformance Analysis+1JUN 18, 2024Author:Manoj Vivek
  14. For a change, let's talk web performance: HTTP 103 (Early Hints)We'll talk about what is HTTP 103 (Early Hints), how it can help speed up the web.webperfweb-performance+1JUL 26, 2022Author:Manoj Vivek
  15. Sponsoring the Open-Source CommunityPolar Signals is sponsoring open-source developers.CultureCompany Culture+1AUG 18, 2022Author:Matthias Loibl
  16. System-wide profiling in Parca AgentHow we re-architected Parca Agent to profile every process on the host and made it more scalable in the process.ProfilingBPF+2AUG 24, 2022Author:Javier Honduvilla Coto
  17. Optimizing Your Programs with Continuous ProfilingAn example of using continuous profiling to inform code improvements.FrostDBContinuous-Profiling+1AUG 30, 2022Author:Thor Hansen
  18. Exploring Go's Profile-Guided OptimizationsMaking code faster without modifying it using Profile-Guided Optimizations.GoContinuous-Profiling+3SEPT 27, 2022Author:Frederic Branczyk
  19. Improved pprof.me! 🎉Good news! pprof.me, our free profile sharing service, has got a shiny new look and feel. It's now easier than ever to share and visualize your profiles with the world.PprofPprof.Me+1OCT 12, 2022Author:Manoj Vivek
  20. Parca Plugin for Grafana!You asked for it, we delivered.PprofParca+1OCT 20, 2022Authors:Manoj V, Matthias L.
  21. Polar Signals at KubeCon NA 2022Attending KubeCon NA 2022 in Detroit, USA.KubeConCommunityOCT 24, 2022Author:Matthias Loibl

2022 24

  1. Parca now also in Grafana CoreParca in Grafana without having to install a plugin!GrafanaParca+2NOV 2, 2022Authors:Matthias L, Frederic B.
  2. Announcing Profiling Support Without Frame PointersOpen-Source Parca Agent is adding support for native applications compiled without frame pointers.ProfilingeBPF+6NOV 23, 2022Author:Javier Honduvilla Coto
  3. DWARF-based Stack Walking Using eBPFDeep dive into the new DWARF-based stack unwinder using eBPF.ProfilingBPF+7NOV 29, 2022Author:Javier Honduvilla Coto
  4. Design Decisions of a Continuous ProfilerThe tradeoffs and considerations building continuous, fleet-wide profilers.Continuous-ProfilingBPF+7DEC 14, 2022Authors:Frederic B, Javier H Coto, Kemal A, Monica W, Thor H.
  5. What's new in Parca?Looking at some exciting features that recently landed in Parca.Continuous-ProfilingBPF+8JAN 3, 2023Author:Frederic Branczyk
  6. Introduction to Parca - Part 2Parca Agent is our open source, always-on eBPF-based continuous profiler. In this article, we will learn some of the concepts behind Parca Agent and use it to profile our system.Continuous-ProfilingBPF+6JAN 19, 2023Author:Sumera Priyadarsini
  7. Polar Signals at FOSDEM 2023Attending FOSDEM 2023 in Brussels.FOSDEMCommunityFEB 3, 2023Author:Frederic Branczyk
  8. Symbolizing Postgres Profiling DataA journey through undocumented behavior.PostgresSql+5FEB 8, 2023Author:Frederic Branczyk
  9. What’s new in Parca 0.16 and Parca Agent 0.13?We have exciting updates in this release, including improved JIT symbolization, reliability and quality improvements, step querying, and more!Continuous-ProfilingProfiling+8FEB 28, 2023Authors:Javier H Coto, Yomi E.
  10. Designing Your Indexes for Better Database PerformanceHow we improved our database query performance by 80% and the intuition behind the changes that led to this improvementParcaDatabases+3MAR 20, 2023Author:Alfonso Subiotto Marqués
  11. Ice and Fire: How to read icicle and flame graphsFlame graphs and icicle graphs are a great way to visualize performance profiles. In this post, we will learn how to read and interpret them.Continuous profilingProfiling+7MAR 28, 2023Author:Kemal Akkoyun
  12. Embeddable Profiles in pprof.meSay goodbye to taking screenshots of flame graphs/profile data. Now you can embed the interactive profiles directly in any website.Profile-Sharingpprof.meAPR 5, 2023Author:Manoj Vivek
  13. Continuous Profiler Cumulative MetricsOur first major feature since our product launch: cumulative profiling metrics!PprofPrivate beta+2MAR 23, 2021Author:Frederic Branczyk
  14. Perfessor - Continuous Profiling Without InstrumentationContinuously profiling your applications without having to make modifications!PprofPrivate beta+3MAR 31, 2021Author:Thor Hansen
  15. Demystifying Pprof Labels with GoLearn how to demystify Pprof Labels using GoPprofGo+1APR 13, 2021Author:Frederic Branczyk
  16. DIY pprof profiles using GoBuilding pprof profiles from scratch using GoPprofGo+1AUG 3, 2021Author:Matthias Loibl
  17. Introducing Parca - Prometheus but for profilesP.S. We got funded!PprofGo+5OCT 8, 2021Author:Frederic Branczyk
  18. On Building Company CultureThoughts on how early company culture shapes the future of it.CompanyCulture+2OCT 26, 2021Author:Frederic Branczyk
  19. How we build our gRPC APIs at Polar Signals using bufTools and strategies that we use to build APIs that we love at Polar Signals.APIgRPC+4NOV 11, 2021Author:Thor Hansen
  20. Why Compiler Function Inlining MattersAll about function inlining, how it helps us create performant software, how we can learn to work with it, and how it influences profiling.PprofPerf+2DEC 15, 2021Author:Matthias Loibl
  21. Fantastic Symbols and Where to Find Them - Part 1How profilers and debuggers translate machine addresses to human-readable symbolic namesSymbolizationBinary+6JAN 13, 2022Author:Kemal Akkoyun
  22. Fantastic Symbols and Where to Find Them - Part 2How profilers and debuggers translate machine addresses to human-readable symbolic namesSymbolizationDebugging+10JAN 27, 2022Author:Kemal Akkoyun
  23. Managing monorepos with Lerna and Yarn workspacesLerna and Yarn Workspaces gives us the ability to build and publish libraries and apps in a single repository (a.k.a. Monorepo). In this article we'll see how to publish UI components from a monorepo.MonorepoLerna+3FEB 1, 2022Author:Yomi Eluwande
  24. How we build our APIs: From ScratchIn a previous post we detailed how we build our APIs here at Polar Signals. But we're going back to basics, in this tutorial we'll teach you how to build a small App from API to implementation.GoFrontend+6FEB 22, 2022Author:Thor Hansen

2021 10

  1. Profiling Next.js apps with ParcaWe will learn how to profile your Next.js/Node.js apps with Parca and how it helps you to go back in time and identify the root cause for the irregular bottlenecks in your application's performance.JavascriptNextjs+2MAR 2, 2022Author:Manoj Vivek
  2. Introducing arcticDB: A database for ObservabilityContinuous profiling needed a columnar database, so we built it.golangapache arrow+3MAY 4, 2022Author:Frederic Branczyk
  3. Polar Signals at KubeCon EU 2022Attending KubeCon EU 2022 in Valencia, Spain.KubeConCommunityMAY 13, 2022Author:Matthias Loibl
  4. What BJJ taught me about Software DevelopmentHow training Brazilian Jiu Jitsu has helped me become a better programmerSoftware DevelopmentCompany Culture+1JUN 9, 2022Author:Monica Wojciechowski
  5. Naming is hard: ArcticDB is now FrostDB (+updates!)We made a mistake in naming our open-source in-memory columnar database.GolangApache Arrow+3JUN 16, 2022Author:Frederic Branczyk
  6. How we use gRPC to build our frontend at Polar SignalsgRPC is a new protocol for building a backend for our frontend. In this article, we'll learn how we use gRPC and gRPC-web to build our frontend at Polar Signals.gRPCgRPC-Web+3JUN 23, 2022Author:Yomi Eluwande
  7. Introduction to Parca - Part 1Parca is our open source, always-on eBPF-based continuous profiler. In this article, we'll learn some of the concepts behind Parca and use it to profile our system.ParcaeBPF+3JUL 12, 2022Author:Sumera Priyadarsini
  8. Winter is coming - FrostDB in PrometheusFrostDB is an embedded columnar database built for observability data. This article will explore FrostDB's potential by using it in Prometheus.FrostDBPrometheus+1JUL 22, 2022Author:Thor Hansen
  9. Introducing Polar Signals' Pprof Profile Sharing ServiceOur first publicly available service, to upload and share pprof profiles.PprofSaaSFEB 9, 2021Author:Thor Hansen
  10. Announcing Polar Signals Continuous ProfilerSince founding Polar Signals, we have been heads down working on our first product, and today we are beyond excited to share it with you!PprofPrivate beta+1FEB 9, 2021Author:Frederic Branczyk