we've been dogfooding this for a few weeks now and it's such an unlock for teams building on workers! no more mystery box
importantly — you can now find and profile a durable object!
importantly — you can now find and profile a durable object!
On-demand CPU and memory profiling for Cloudflare Workers and Durable Objects is now available. Now you can quickly track down memory leaks and performance bottlenecks. cfl.re/47e1Fdo
Oct 9, 2026 · 3:12 PM UTC
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@ritakozlov Every repo I’m in is being audited with this now (ie sent “read this post and make everything faster and more efficient”) haha thank you so much!
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@ritakozlov docs say the heap profile is allocations sampled every 512kb, not retained memory. a slow DO leak is a retention bug, so you see who allocated, not who's holding it. snapshots next @d0m96?
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@ritakozlov This is cool! My agent thinks it's inaccurate, though. Full report here: gist.github.com/jahands/d1be84…
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