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  1. Jun 2021
    1. When running this small application with Wizer, it only takes .36 milliseconds (or 360 microseconds). This is more than 13 times faster than what we’d expect with the JS isolate approach. We get this fast start-up using something called a snapshot. Nick Fitzgerald explained all this in more detail in his WebAssembly Summit talk about Wizer.

      Deno has been doing a lot of work to make sure V8 Isolate's snapshots are well supported & easy to build & manage & launch. I'm very excited to see Deno, someday, post similar orders-of-magnitude wins. I expect folks like CloudFlare Workers already do this.