object references/memory access

John Nagle nagle at animats.com
Tue Jul 3 19:50:05 CEST 2007

dlomsak wrote:
> Paul Rubin wrote:
>>dlomsak <dlomsak at gmail.com> writes:
>>>knowledge of the topic to help. If the above are not possible but you
>>>have a really good idea for zipping large amounts of data from one
>>>program to another, I'd like to hear it.

> Well, I was using the regular pickle at first but then I switched to
> just using repr() / eval() because the resulting string doesn't have
> all the extra 's1=' and all that so it cuts down on the amount of data
> I have to send for large returns when you cut out all of that
> formatting. The speed of the above method is pretty high even for
> really large returns and it works fine for a list of dictionaries.

     OK, that's where the time is going.  It's not the interprocess
communication cost, it's the marshalling cost.  "repr/eval" is not
an efficient way to marshall.   Try using "pack" and "unpack", if
you control both ends of the connection.

				John Nagle

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