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Pyroscope

AcquiredYC W21

San Francisco, US Β· Founded 2021 Β· 5 employees Β· 2 known investors

Grafana Pyroscope is an open source continuous profiling system that aggregates performance data and enables application teams to identify resource usage and performance bottlenecks down to the source code level. It integrates with Grafana and correlates profiling data with metrics, logs, and traces for comprehensive application observability.

Also known as Ignite Β· Grafana Pyroscope Β· pyroscope-io

Founders & leadershipΒ· Y Combinator alumni (W21)

Pyroscope was founded in 2021 by Ryan Perry and Dmitry Filimonov.

RPRyan Perry
Ryan PerryinCEO, Co-Founder of Pyroscope (YC W21 - Acquired by Grafana Labs)2021–2023Ryan Perry co-founded Pyroscope, an open source continuous profiling platform. He previously held software engineering, product management, and data engineering roles at Sensor Tower and Lion Studios (AppLovin).
DFDmitry Filimonov
Dmitry Filimonovin𝕏Co-founder2021–2023Dmitry Filimonov is a co-founder of Pyroscope, an open source continuous profiling platform, and previously held the role of Engineering Team Lead at Sensor Tower.

Investors Β· 2

Company profile

researched Aug 2026

Pyroscope is the company behind the open source continuous profiling project of the same name. Continuous profiling is positioned as a fourth observability signal alongside metrics, logs and traces, giving developers visibility into how their applications consume CPU, memory and I/O down to the source code line number. The platform consists of a Pyroscope server that stores, processes and serves queries against profiling data; client-side instrumentation via language SDKs, the Grafana Alloy agent, or OTLP from OpenTelemetry-compatible sources such as the OpenTelemetry eBPF profiler; and visualization surfaces including the Pyroscope UI, Grafana, and Grafana Profiles Drilldown (formerly Explore Profiles). Profiling data can be presented as flame graphs, tables, charts and graphs.

Alongside the open source project, the company offered a hosted product, Pyroscope Cloud, which after the Grafana Labs acquisition became Grafana Cloud Profiles. Following the merger of Pyroscope with Grafana Phlare, Grafana Pyroscope is a multi-tenant, horizontally scalable continuous profiling aggregation system whose microservices architecture is aligned with Grafana Mimir, Grafana Loki and Grafana Tempo, and which correlates profiling data with other observability signals inside Grafana. At the time of acquisition, data reached the Pyroscope server through its agent and directly from the Linux kernel using eBPF, with the server built on the BadgerDB key-value database. A later Pyroscope 2.0 release made a v2 architecture the default, writing profiles directly to object storage and removing in-memory ingesters and local disks, with a migration path for existing v1 deployments.

Founding story

Dmitry Filimonov and Ryan Perry met when Filimonov hired Perry for his first software engineering job, and the two found a shared interest in software performance. They went on to found Pyroscope together, working on continuous profiling as a way to optimize software.

Business model

Pyroscope combined a permissively licensed open source continuous profiling server and client SDKs with a commercial hosted service, Pyroscope Cloud. Following the acquisition, the hosted offering was folded into Grafana Cloud as Grafana Cloud Profiles, while the open source project continues under the Grafana Labs umbrella.

Commercial revenue came from the hosted Pyroscope Cloud service layered on top of the free open source project; after the acquisition, profiling capabilities were added to the fully managed Grafana Cloud observability platform.

Traction

The open source repository reports 11.6k stars and 796 forks with 5,853 commits; at the time of the March 2023 acquisition the project had about 7.2k GitHub stars. Pre-acquisition customers cited include Sensor Tower, Confluent, Line and Plaid. The Python client is published on PyPI as pyroscope-io.

Latest developments

Pyroscope 2.0 shipped a v2 architecture as the default, writing profiles directly to object storage and eliminating in-memory ingesters and local disks, with an opt-in flag and migration guide for existing v1 deployments. Grafana Profiles Drilldown (formerly Explore Profiles) is now the primary queryless interface for analyzing profiles, and Pyroscope Cloud has been rebranded as Grafana Cloud Profiles. The team also experimented during a Grafana hackathon with an AI-based flame graph interpreter that generates explanations of performance bottlenecks, root causes and recommended fixes, exposed via an "ai explainer" button on flamegraph.com.

β–ΈFull profile β€” market position, technology, go-to-market, geography, history, risks & controversies

Market position

Pyroscope was a standalone vendor in continuous profiling, a category Grafana Labs describes as the fourth pillar of observability. Commentary at the time of the acquisition noted that continuous profiling may function more as a feature of larger observability platforms than as a standalone product, particularly amid consolidation of infrastructure spending. The open source project built a substantial community, cited at 7.2k GitHub stars in March 2023 and 11.6k stars on the current grafana/pyroscope repository.

The product focuses specifically on continuous profiling as a distinct observability signal, offering line-level attribution of resource usage, broad multi-language instrumentation including eBPF-based collection without code changes, and native correlation of profiles with metrics, logs and traces inside Grafana.

Technology

The system samples profiling data from applications and ships it to a Pyroscope server. Instrumentation options include language SDKs for Go, Java, Python, Ruby, Node.js, .NET and Rust, eBPF-based profiling that collects data directly from the Linux kernel, the Grafana Alloy agent, and OTLP ingestion from OpenTelemetry-compatible sources. The original server used the BadgerDB key-value store; the current architecture is a multi-tenant, microservices-based aggregation system with horizontally scalable components and deployment modes, and Pyroscope 2.0 writes profiles directly to object storage with background compaction workers merging small segments into larger blocks. Query results are rendered as flame graphs and tables in the Pyroscope UI, Grafana, or Grafana Profiles Drilldown. The Python agent uses py-spy for stack sampling and a Rust crate to send profiles to the server, and is distributed under Apache-2.0.

Go-to-market

Adoption was driven by the open source project and its community β€” GitHub distribution, Docker, Homebrew and binary releases, Helm/Kubernetes deployment, a live demo, Slack community, and a Grafana plugin integration from mid-2021 β€” with conversion to the hosted Pyroscope Cloud product. Post-acquisition, distribution runs through Grafana and Grafana Cloud, where Profiles Drilldown is pre-installed.

Software engineering, DevOps and platform teams running cloud-native and Kubernetes-based workloads who need to reduce resource consumption, improve application performance, and debug CPU, memory and I/O bottlenecks. Named customers before the acquisition included Sensor Tower, Confluent, Line and Plaid.

Geography

The company was headquartered in the United States, with founders and collaborators distributed across locations including London, Oakland and France.

History

Pyroscope was founded by Ryan Perry and Dmitry Filimonov and backed by Y Combinator; the open source project integrated with Grafana via a plugin from mid-2021 and the company raised a seed round in 2021. By March 2023 the project had accumulated roughly 7,200 GitHub stars and the company also sold a hosted Pyroscope Cloud product. On March 15, 2023, Grafana Labs announced its acquisition of Pyroscope and the merger of the Pyroscope project with Grafana Phlare under the name Grafana Pyroscope, with Pyroscope Cloud subsequently becoming Grafana Cloud Profiles. Development has continued within Grafana Labs, including a Pyroscope 2.0 release that made a new object-storage-based v2 architecture the default.

Risks & controversies

Coverage of the acquisition noted that continuous profiling may be better suited as a feature within a larger observability platform than as a standalone product, especially as companies consolidate infrastructure spending β€” a dynamic that constrained Pyroscope's independent path.

Compiled by commissioned research from 8 cited public sources β€” announcements, filings, and press listed under research sources below.

Key figures

latest reported
GitHub commits (grafana/pyroscope)Jan 20265,853 commits
GitHub forks (grafana/pyroscope)Jan 2026796 forks
GitHub starsMar 20237,200 stars
GitHub stars (grafana/pyroscope)Jan 202611,600 stars

Company-reported or press-reported figures, each dated to when it was claimed β€” not independently audited.

Competitors Β· 6

by search overlap
Grafana (Link24 shared keywordsGrafana Labs builds an observability platform that collects, visualizes, and alerts on metrics, logs, traces, and profiles from multiple data sources. The platform serves operators and DevOps teams managing complex systems at scale, with AI-powered features to reduce data waste.
Datadog19 shared keywordsDatadog is a cloud-based monitoring and security platform that provides observability, analytics, and protection for infrastructure, applications, and data across enterprises. The platform serves development, security, and operations teams managing cloud-native and hybrid environments.
Middleware13 shared keywordsMiddleware is a cloud observability platform that integrates logs, traces, and metrics to help organizations identify and resolve infrastructure issues rapidly. The platform serves cloud-native businesses seeking to modernize their infrastructure monitoring with scalable, cost-effective observability tools.
Polar Signals9 shared keywordsPolar Signals develops software performance and reliability tooling, including continuous profiling, to help developers build faster and more reliable applications. The company operates in the developer tools and cloud observability space.
Arm8 shared keywordsArm is a semiconductor company that designs and licenses processor IP and compute platforms used from edge devices to AI data centers, spanning markets such as data centers, automotive, and general computing. It is a publicly traded company majority-owned by SoftBank Group.
Sentry8 shared keywordsSentry is an application monitoring and error-tracking platform that developers integrate via SDKs to catch, root-cause, and fix errors and performance issues across development and production. It offers AI-based debugging and code review through its Seer agent, along with integrations for tools like GitHub, Slack, Jira, and Linear.

Companies competing with Pyroscope for the same Google search keywords, organic and paid, via search-intersection analysis.

Timeline Β· 4

launches, deals, and filings
Jan 2026
Pyroscope 2.0 released with v2 architecture as default

Pyroscope 2.0 made the v2 architecture the default, writing profiles directly to object storage and removing in-memory ingesters and local disks; v1 deployments can opt in via a flag and migrate without data loss.

source β†—

Mar 2023
Grafana Labs acquires Pyroscope

Grafana Labs announced the acquisition of Pyroscope, the company behind the open source continuous profiling project. The Pyroscope project and Grafana Labs' Grafana Phlare continuous profiling database were merged under the name Grafana Pyroscope, with plans to add profiling to Grafana Cloud. Deal terms were not disclosed.

source β†—

Jan 2023
Pyroscope Cloud becomes Grafana Cloud Profiles

The hosted Pyroscope Cloud product was rebranded and folded into Grafana Cloud as Grafana Cloud Profiles.

source β†—

Jan 2021
Pyroscope integrates with Grafana via plugin

The open source Pyroscope project shipped an integration with Grafana through a plugin starting in mid-2021.

source β†—

Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.

In the news

β–ΈResearch sources Β· 8

primary sources listed

8 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Pyroscope do?
Pyroscope builds an open source continuous profiling platform for pinpointing code-level resource usage; acquired by Grafana Labs in 2023.
Who founded Pyroscope?
Pyroscope was founded by Ryan Perry, Dmitry Filimonov in 2021.
Who are Pyroscope's investors?
Pyroscope's investors include Open Opportunity Fund, Y Combinator.
Where is Pyroscope headquartered?
Pyroscope is headquartered in San Francisco, US.