"Count what is countable. Measure what is measureable. What is not measureable, make measureable." -- Galileo

Wednesday, September 8, 2010

Windows vs *nix vs OS X

In response to last week's post, Wichert Akkerman pointed out that he thought the Windows installers always showed more downloads than Unix-based ones.  He suggested that I dig around for the actual numbers.  Never one to turn down a challenge, I extracted the numbers from Launchpad and took a look around. 

Turns out, there are some anomalies.  The data for 2.5.x are probably incomplete due to the changeover to Launchpad several years ago.  Also, Plone 3.2.1 shows almost 700,000 downloads of the Windows installer.  Plone 3.2.2 shows almost 200,00 downloads of the unified installer for *nix.  If we take the data "as is," the graph looks like this with 3.2 dwarfing everything else.

If we remove the 3.2.1 and 3.2.2 data, assuming those to be some sort of outlier, the graph looks like this. 

Either way, Wichert is right--the Windows installer is being downloaded 3-4 times for every download of the unified installer.  Only 2.5 shows the unified installer outperforming the Windows version.  BTW, OS X is always under 10%, and for most versions, under 2%. 

I leave it as an exercise for the student to interpret all this.  Does this mean lots of people download the Windows version to test the product before installing on a Unix box?  Is Enfold Systems with it's toolset aimed squarely at Plone for Windows in the sweet spot for Plone consulting?  And what is going on with downloads for 3.2.x?  Your thoughts, please. 

3 comments:

thet said...

ppl on *nix use buildout.

Wichert Akkerman said...

I think the time between releases is a factor. I suspect that universal installer downloads peak after a release and then drop off, while windows installers have a more steady download rate. That should translate in a different universal/windows download rate depending on the time between releases. 3.3 will be a bit of an anomaly since it initially saw very little pickup; people appears to say on 3.2 for a long time.

Hanno Schlichting said...

A lot of people do indeed use buildout directly and not any of the installers. So you could aggregate the numbers from the different PyPi downloads (for example http://pypi.python.org/pypi/Plone/3.3.5) and add them as a "buildout" column.