[Etoys] zip optimization results
bert at freudenbergs.de
Thu Apr 10 16:46:21 EDT 2008
On 10.04.2008, at 06:05, Ties Stuij wrote:
> 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.
> 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 -
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