[OpenWrt-Devel] [OpenWrt-Users] [PROPOSAL] move OpenWrt codebase to Git and GitHub

[Jo-Philipp Wich]

Hi,

here's a few numbers we gathered with our buildbot setup:

We currently need roughly 35GB per target when building OpenWrt plus the
entire package world and currently there are roughly ~70
target/subtarget combinations in the OpenWrt tree.

If fast build tests are desired then the only way to do so is by
implementing incremental building which only works if there's enough
space to retain all build trees at once which means there need to be
about 2.5TB of storage available.

For only building all base systems without package feeds the entire
required space is around 800GB.

A base system build currently requires 1 hour and 15 minutes on a
machine having a Xeon E3-1246 v3 4 core / 8 thread CPU with prepopulated
dl/, ccache and make -j8.

A build of all packages from all feeds takes around 70 minutes on a Xeon
E5-2630 v3 8 core / 16 thread machine with 12GB ram and make -j16.

HTH,
Jo
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