AWS Lambda battle 2021: performance comparison for all languages (cold and warm start)

Aleksandr Filichkin
6 min readSep 16, 2021

Let’s compare the performance of all supported runtimes + 2 custom runtimes (Rust and GraalVM).

Will compare cold start and warm.

Source code is here: It requires the minimum local setup(almost all is Dockerized)

  • NodeJs (14.x)
  • Python (3.9)
  • Go(1.x)
  • Ruby(2.7)

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