---
type: "post"
id: "on-demand-cpu-and-memory-profiling-for-cloudflare-a5f45a"
slug: "on-demand-cpu-and-memory-profiling-for-cloudflare-a5f45a"
title: "On-demand CPU and memory profiling for Cloudflare Workers and Durable Objects is now available."
description: "Cloudflare has made on-demand CPU and memory profiling with flamegraphs available for Workers and Durable Objects."
retrieval_nugget: "Cloudflare has made on-demand CPU and memory profiling with flamegraphs available for Workers and Durable Objects."
published_at: "2026-10-09"
updated_at: "2026-10-09"
record_date: "2026-10-09"
date_kind: "published_at"
topics: []
source_urls: ["https://blog.cloudflare.com/workers-on-demand-profiling"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "post:on-demand-cpu-and-memory-profiling-for-cloudflare-a5f45a"
status: "published"
visuals: []
editorial_provenance: {"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:caf5461895f9e08802f0eb2e10e75f99e49a11f5ad4c284a8480b38d26939683","reviewed_at":"2026-10-09T14:03:28.603Z","source_evidence_count":1,"verified_claim_count":2,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":2,"implication_count":1,"watch_condition_count":1,"related_record_count":0}
analysis: {"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"On-demand profiling gives Workers and Durable Objects developers a platform-level path to inspect CPU and memory behavior when diagnosing performance problems.","observed_facts":[{"text":"Cloudflare’s announcement names both Workers and Durable Objects as supported targets.","source_urls":["https://blog.cloudflare.com/workers-on-demand-profiling"]},{"text":"It describes CPU and memory profiling with flamegraphs and cites memory leaks and performance bottlenecks as problems the feature can help track down.","source_urls":["https://blog.cloudflare.com/workers-on-demand-profiling"]}],"mechanism":"The announced feature collects CPU and memory profiling data on demand and presents it as flamegraphs, a visualization developers can inspect to locate resource-intensive behavior.","why_now":"Cloudflare has announced availability, making this a current tooling change for teams building on its serverless runtime.","implications":["Teams using these runtimes have a new built-in diagnostic option to evaluate for CPU and memory investigations."],"evidence_boundary":"The supplied public announcement does not specify plan eligibility, usage limits, sampling behavior, or quantified effectiveness.","watch_conditions":["Watch for documentation clarifying access, limits, and how profiles are collected."],"related_records":[],"new_branch_reason":"No prior New Runtime record is supplied in the task, so this announcement starts a distinct analytical record for the profiling feature."}
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
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---

# On-demand CPU and memory profiling for Cloudflare Workers and Durable Objects is now available.

## Retrieval answer

Cloudflare has made on-demand CPU and memory profiling with flamegraphs available for Workers and Durable Objects.

Cloudflare has made on-demand CPU and memory profiling with flamegraphs available for Workers and Durable Objects. The company says the capability can help developers find memory leaks and performance bottlenecks. These are the stated uses, not evidence of measured diagnostic speed or outcomes.

Thesis: On-demand profiling gives Workers and Durable Objects developers a platform-level path to inspect CPU and memory behavior when diagnosing performance problems. Mechanism: The announced feature collects CPU and memory profiling data on demand and presents it as flamegraphs, a visualization developers can inspect to locate resource-intensive behavior. Why now: Cloudflare has announced availability, making this a current tooling change for teams building on its serverless runtime.

The implication is that developers may be able to investigate these classes of runtime problems without relying solely on external instrumentation; the announcement alone does not establish that profiling replaces other observability tools. Observed fact: Cloudflare’s announcement names both Workers and Durable Objects as supported targets. Observed fact: It describes CPU and memory profiling with flamegraphs and cites memory leaks and performance bottlenecks as problems the feature can help track down. Evidence boundary: The supplied public announcement does not specify plan eligibility, usage limits, sampling behavior, or quantified effectiveness. First implication: Teams using these runtimes have a new built-in diagnostic option to evaluate for CPU and memory investigations. First watch condition: Watch for documentation clarifying access, limits, and how profiles are collected.

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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