Fazal Majid on Nostr: Instagram is largely written in Python and WhatsApp in Erlang, both relatively slow ...

Instagram is largely written in Python and WhatsApp in Erlang, both relatively slow languages compared to C/C++/Rust/Zig/Go, and yet they manage to scale. At a previous company, we had a Python based server handling 4000 sustained requests/second with 9ms latency at the 99th percentile, so it's not just the language at fault.