On 2010/12/23 05:51, Robert McIntyre wrote:
> I think it would be really cool to have a function that gives the
> total number of bytes that a data structure consumes.
>
> so something like:
>
> (total-memory [1 2 [1 2]])
>
> would return however many bytes this structure is.
>
> Is there already something like this around? Would it be hard to write
> to work for any clojure data structure?
I've used the following serialization trick during development in a java
context:
(defn total-memory [obj]
(let [baos (java.io.ByteArrayOutputStream.)]
(with-open [oos (java.io.ObjectOutputStream. baos)]
(.writeObject oos obj))
(count (.toByteArray baos))))
It is *very* inaccurate but gives some indication of size.
Regards,
Remco
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