[Etoys] zip optimization results

[Bert Freudenberg]

On 10.04.2008, at 06:05, Ties Stuij wrote:
> Hey!
>
> I got some interesting results from fiddling with various project
> zipping strategies on the XO.
>
> Basically using only the unzipped project file, big projects load
> about 3 times faster than the doubly zipped alternative (where the
> project zip bundle is not compressed); which is the way project files
> are stored now.

Cool!

> Numbers are in seconds, horizontally we see the zipping methods and
> vertically three different projects. On a clean 3.0 image, loaded with
> our customizations and luke's speed patch.
>
>      pr     pr.gz.zip0   pr.zip0  pr.zip     pr.gz
> tr   37       1:20       1:29      1:29       46
> c10  30       1:15       1:23      1:23       40
> shp  18         30         32        36       20
>
> where tr, c10, shp are different projects
>
> pr = non-gzipped stand-alone .pr file
> pr.gz.zip0 = gzipped .pr file in uncompressed zip archive
> pr.zip0 = non-gzipped .pr file in uncompressed zip archive
> pr.zip = non-gzipped .pr file in compressed zip archive
> pr.gz = gzipped stand-alone .pr file


I just reformatted your table for my own understanding. So apparently  
avoiding the zip-archive part is paramount for performance. We should  
figure out what's actually taking so long there ...

- Bert -