[Zope-dev] "zipped" versus "unzipped" eggs (was: Re: SVN: Zope2.buildout/trunk/ Don't pin setuptools.)

[Jim Fulton]

On Aug 30, 2008, at 2:03 AM, Dieter Maurer wrote:

> Tres Seaver wrote at 2008-8-28 15:22 -0400:
>> ....
>> I don't think zipped eggs are a win in any real scenario, except
>> possibly the goofy file-count-limited GAE.  I would strongly prefer  
>> that
>> you revert this one change (you can override it in your own
>> '~/.buildout/default.cfg').
>
> We have observed a drastic speedup (on both Windows and Linux)
> in import time (about 30 %) when we have put our complete
> (large) application (consisting among others of Zope 2, CMF,  
> Archetypes)
> in a (single) zip file.

...

>
> However, I am not sure whether our observations for a single
> large zip (in fact, we use two: one for our application, the other  
> for Python's
> runtime library) is valid for the case of many small zipped eggs.


In fact, for a small application that I wanted to be able to run as a  
CGI, zipping several non-large eggs (such as zope.publisher, for  
example) made imports slower.  It was faster to use unzipped eggs.  
This was on Linux.

Jim

--
Jim Fulton
Zope Corporation