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A comment on Eliminating Cold Starts 2: shard and conquer. Parent comment

Re:Eliminating Cold Starts 2: shard and conquer by swiftcoder on Monday September 29, 2025 @10:35AM (#45414353)
TLS handshakes (outside of embedded hardware) should be measured in milliseconds, not seconds

Edit: you can kind of tell this from the connect timings listed above. TLS is faster the second time around, but not enough to make much difference to the overall speedup

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Re:Eliminating Cold Starts 2: shard and conquer by scottlamb on Monday September 29, 2025 @12:16PM (#45415563)
I think you're right that TLS doesn't explain the difference shown above, but for completeness: TLS 1.3 can reduce the round trips from 3 to 2 on session resumption. [1] Depending on your Internet connection, that could be a lot more than milliseconds. I don't think `curl` uses it by default though.

[1] https://blog.cloudflare.com/introducing-0-rtt/

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