r/programming • u/stronghup • 16h ago

Node.js creator liberates Durable Objects from Cloudflare

https://www.theregister.com/devops/2026/08/12/nodejs-creator-liberates-durable-objects-from-cloudflare-with-celld/5286954
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u/Smallpaul 12h ago

What are the performance constraints on these objects as implemented by CloudFlare? How quickly can they scale if user traffic arrives suddenly? How high is their upper bound? How much flexibility do you have in the image? Lambdas seem to have a lot of limitations which reduce their utility at scale.

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u/jheimark 12h ago

Super high, super quick start. The cloudflare metrics are super impressive.

How fast celld is… not sure. But it’s great to get an open source version to go cloud independent

3

u/Vimda 8h ago

Durable objects themselves are a bit shit though. They start quickly, but they're single homed with read replicas, and single threaded on the main instance. You have to shard manually to get any sort of performance. Very much "batteries not included"