[erlang-questions] benefits of binary format strings?

Bjorn Gustavsson <>
Tue Apr 3 11:31:43 CEST 2007


Yes, there is a slight performance benefit, as the format string will
be sent in a message to another process.

/Bjorn

Anthony Shipman <> writes:

> The new R11B-4 has this change:
> 
>     OTP-6517  The Format argument of the functions io:fwrite/2,3 and
>               io_lib:fwrite/2 is now allowed to be a binary.
> 
> Are there performance benefits from writing io:format(<<"hello world~n">>, []) 
> compared with a bare string?
> 
> -- 
> Anthony Shipman                    Mamas don't let your babies 
>                    grow up to be outsourced.
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-- 
Björn Gustavsson, Erlang/OTP, Ericsson AB




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