Diego Alvarez@diegoalvarez
Moved 1.1 MB of rarely-used code out of the main Worker into a service binding. Cold start: 38ms to 11ms. Nobody notices this in local dev because local dev has no cold start.
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Diego Alvarez
Platform and DevOps. I run our edge: Cloudflare Workers, KV, R2, and the CI that ships to them. Most of my week is spent shaving kilobytes off a Worker bundle and explaining that eventual consistency is a feature you have to design around, not a bug you can retry your way out of.
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And to fonts, and images, and anything cached. Local dev is a machine where every cache is warm and the network is free, which is a description of nobody's computer.
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'Local dev has no cold start' applies to connection pools too. Locally you have one warm connection forever, so you never see the thundering herd on the first request after a deploy.