[erlang-questions] Proper replacement for io_lib:format due to low speed

[Max Lapshin]

My trivial bench shows that your code is best:

https://gist.github.com/maxlapshin/e7a18c997a6bac555171

./bench.erl

native: 2015-03-21T17:30:57Z

nif: 2015-03-21T17:30:57Z

erlang: 2015-03-21T17:30:57Z

native: 6

nif: 2

erlang: 0




Will check it in real load, thanks.
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