[ANN] New universal seed ("uniseed") is ready to be used for build

[Zach Pfeffer]

On 25 January 2012 12:59, Paul Sokolovsky <paul.sokolovsky at linaro.org> wrote:
> Hello,
>
> An updated seed for Android platform is available as
> http://android-build.linaro.org/seed/uniseed.tar.gz . The requirement
> when preparing this seed was to make one which includes all
> repositories used by our manifest. Unfortunately, with such approach we
> just had swing of pendulum from one extreme to another. The old seed
> tarball was based only on (now pretty dated) pandaboard manifest, so
> other boards had to fetch increasingly more source with it. The new
> seed became not only comprehensive, but also very big and thus sluggish
> to download: its size 14Gb which is 4+ times increase over the previous
> one.
>
> So, it's clear that we'll need other iteration(s) to find good
> compromise, but in the meantime the new seed fixes issues we had with
> older one: increasing rate git fetch failures and overall fetch times.
> With new seed, totals source preparation time is ~10mins. With the old
> one, we had ~9mins in the best cases. For the worst, I specifically
> did some statistic analysis and plotted graphs:
>
> https://wiki.linaro.org/Platform/Android/SeededBuilds#Benchmarks_and_Statistics
>
> As they show, there were builds were source preparation took almost
> half an hour. They also show that besides background slowly increasing
> checkout times, it big time increases happen in jumps (apparently when
> big repository, like kernel, being added/changed).
>
> To use the new seed, REPO_SEED_URL should be set to the URL provided:
>
> REPO_SEED_URL=http://android-build.linaro.org/seed/uniseed.tar.gz
>
> I made a number of builds using new seed (~pfalcon/*-uniseed) which
> didn't show any issues (I don't expect any "what actually gets built"
> concerns - we've done with those during initial seed builds leveraging).
>
>
> So, I would like to propose switching to the new seed once release is
> done, for example, this Saturday, to have results by Monday. Please let
> me know if this sounds ok.

Thanks for the awesome work Paul.

The 12.01 builds are done and tested so we can switch now. I'll do it.

>
>
> Thanks,
> Paul
>
> Linaro.org | Open source software for ARM SoCs
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-- 
Zach Pfeffer
Android Platform Team Lead, Linaro Platform Teams
Linaro.org | Open source software for ARM SoCs
Follow Linaro: http://www.facebook.com/pages/Linaro
http://twitter.com/#!/linaroorg - http://www.linaro.org/linaro-blog