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A comment on Show HN: Lambda Chat – A dynamic web app using AWS Lambda.

Re:Show HN: Lambda Chat – A dynamic web app using AWS Lambda by obel1x on Friday May 22, 2015 @05:37AM (#9587307)
Which part of the architecture causes the latency? The author says it's between 2 and 13 seconds and is faster the more users there are - why would that be the case?
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Re:Show HN: Lambda Chat – A dynamic web app using AWS Lambda by Hortinstein on Friday May 22, 2015 @10:14AM (#9588376)
I am guessing they are caching frequently used lambda functions on their backend. I noticed the same thing playing with Lambda earlier this week.
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