Lucid build performance improvements pull request

[Stefan Bader]

On 23.08.2011 23:08, Tim Gardner wrote:
> These patches in Oneiric seem to be working pretty well. With these changes and
> sufficient server capability I've seen build times cut in half. Now you'll be
> able to control concurrency from the command line, e.g.,
> 
> dpkg-buildpackage -j`getconf _NPROCESSORS_ONLN` -B
> 
> http://bugs.launchpad.net/bugs/832352
> 
> The following changes since commit 2f28aed962765c698f9ed3bc2385dbe79ada2514:
>   Seth Forshee (1):
>         drm/i915: Remove BUG_ON from i915_gem_evict_something
> 
> are available in the git repository at:
> 
>   git://kernel.ubuntu.com/rtg/ubuntu-lucid.git makefile-improvenets
> 
> Tim Gardner (11):
>       UBUNTU: [Config] Simplify binary-udebs dependencies
>       UBUNTU: [Config] kernel preparation cannot be parallelized
>       UBUNTU: [Config] Linearize module/abi checks
>       UBUNTU: [Config] Linearize and simplify tree preparation rules
>       UBUNTU: [Config] Build kernel image in parallel with modules
>       UBUNTU: [Config] Set concurrency for kmake invocations
>       UBUNTU: [Config] Improve install-arch-headers speed
>       UBUNTU: [Config] Fix binary-perarch dependencies
>       UBUNTU: [Config] Removed stamp-flavours target
>       UBUNTU: [Config] Serialize binary indep targets
>       UBUNTU: [Config] Use build stamp directly
> 
>  debian/rules.d/2-binary-arch.mk  |   35 ++++++++++++++---------------------
>  debian/rules.d/3-binary-indep.mk |   29 ++++++++++++-----------------
>  debian/rules.d/4-checks.mk       |   10 ++--------
>  debian/rules.d/5-udebs.mk        |    4 ++--
>  4 files changed, 30 insertions(+), 48 deletions(-)

As much as I would like improved build times, the voice on the other side tells
me it may be just a good idea to let changes/improvements settle a bit in
Oneiric before pulling things all the way back... But then I am usually at the
airport 2 hrs ahead of time...

-Stefan