[erlang-questions] binary optimization
Sat Jul 18 13:46:28 CEST 2009
On Jul 18, 2009, at 12:41 PM, Mikael Pettersson wrote:
> In this code, either enumerate the possible values for Where and
> invoke them via an explicit case expression, or specialise
> into a set of handle_info_.../2 functions, one for each possible
What exactly (and how much) would I be buying with this restructuring?
Would I be avoiding duplicating the binary, i.e. extra memory
Is there anything else?
> To elaborate, storing Token in an aggregate and passing that elsewhere
> forces the implementation to convert Token from the delayed sub binary
> representation to a proper Erlang term,
What is a delayed sub-binary representation? Is there a paper on this?
> A possible solution is to change send/3 to send/4
> with Token as an additional parameter, and then hope that send/4 is
> enough so that the compiler can keep Token in its delayed sub binary
Well, I do want to keep the token around in the state of the gen_server.
I guess converting to send/4 is not gonna buy me anything since I will
need to stuff Token into State in send/4. Am I right?
Mac hacker with a performance bent
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