I have a question regarding performance, as we move from an earlier version of
wix 2.0.5325.0 to the current stable build.
A little background on how we use wix:
We start with a very simple xml file, which contains only the essential things
that define what goes in the msi.
Here is what a website setup project looks like:
OurWebSite.wixml
<install SetupProjectName="OurWebSite"
ProductCode="343e0bea-7f2e-4513-b420-9f57b321aa73" ProductName="Our Web Site">
<source path="Web Sites\Our Web Site">
<exclude pattern="\.cs$"/>
<exclude pattern="\.csproj$"/>
...
</source>
</install>
After our build is complete, another process reads all wixml files and foreach:
merge a xsl template to generate valid wxs out file
then batch execute:
candle -out %1.wixobj %1.wxs > C:\WixLogs\%1.candle.out
light -out %1.msi %1.wixobj > C:\WixLogs\%1.light.out
So that's our custom process - kudos to the wix team, we've built millions of
msi this way.
We recently encountered a problem building a project targeted for the .net
framework 4.0.
So I decided to use a newer version of wix (3.5.2519.0) without changing our
process (although I had to update our wxs template to match the wix3 schema).
Test builds yielded a working msi, but the time taken for msi generation step
is much longer.
I don't have an accurate comparison from the build box yet, but it usually
takes about 314s for all 200 msi. With wix3.5, it got to 1680s before the
process had to end prematurely.
With a clean checkout from svn (no dll's or exe's built yet), wix2 took 74s,
wix3.5 took 202s.
I tried the -ss flag for light but that didn't help.
Is there anything about this process or in general I can look at to get the
per-msi compile time down?
Andrew Dalgleish
Santander Consumer USA Inc.
Application Developer
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