[Arm-dev] Getting started / Build machines

[Karanbir Singh]

On 07/03/2014 11:52 AM, Gordan Bobic wrote:
> Sure, but the time it takes to rm -rf the build root and then untar
> a cached build root copy is a non-trivial fraction of the build
> time for a lot of the packages. It is certainly not trivial when
> you multiply it by around 2,000 for the number of packages you are
> going to need to build.

that solves one problem but creates lots others - eg. the builds
resulting from this run wont be usable since they will have wierd and
indifferent linking

if its just a case of creating a knowledge pool about what does and does
not otherwise build, to throw away the results, then sure - this would
be marginally faster ( the time to build the base mock root is about 21
seconds on th A15 node were using ). But if you intend to use the
resulting content, I cant stress enough - use mock.

>  From experience, anything you can do to get past the first stage
> build faster is usually a good idea if hardware is limited - and
> on ARM it usually is. Even on something like the Arndale Octa or
> the new Chromebook which have 3-4GB of RAM and 8 cores, building

which chromebooks are these ? I still think the server grade ARMv7 stuff
available these days is much faster and capable.


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Karanbir Singh
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