Improving ONNV Build Time

This is a project to make building the Solaris OS/Networking (ON) consolidation
go faster.  Hopefully, the optimizations and lessons learned through this effort
can be applied to make builds go faster in general not just for ON.

Brainstorming

• Ideas
• Questions 
• Issues 

Discussions

• OpenSolaris discussion of making builds faster

• OpenSolaris-discuss proposal for opening a project

• Tools-discuss thread proposing project and discussion of possible build improvements

Observability

• Observing the build
• Tools

Results

• Build Times

• Results from running dtrace script to analyze where most time (in seconds) spent during build (on non-debug clobber build on a SunFire X4600 with 8 dual core Opterons and 32 gig of RAM)

Bugs

• Bugs

Related Work

• ccache - compiler cache that caches object files and uses preprocessed file to tell whether cached object file can be used or is stale 

• compilercache - Original compiler cache that was a foundation for ccache

• dmake article by Nikolay Molchanov

• distcc - distributed C/C++ compiler frontend that distributes preprocessed source to other machines to build 

• Electric Cloud - company developing products for making builds faster 

• Modular Makefiles without Recursion - David Marker experiments with single Makefile build system 

• Paper analyzing build of Solaris OS/Networking consolidation using projects and tasks to analyze how much time is spent building ON and a database to be able to search all the resulting data in interesting ways 

• Recursive Make Considered Harmful - Peter Miller critics of recursive make systems