[webkit-dev] Criteria for becoming a "core" builder

Eric Seidel eric at webkit.org
Wed Mar 2 10:38:58 PST 2011

I'm somewhat sad at having helped create this concept of "Core", since
it's generated much confusion.  It was/is intended more as a way to
get non-stable buildbots off the main page, and away from distracting
developers and bots.

IMO the core list should be *descriptive* rather than *prescriptive*.
If a bot is regularly green, it should be core. If its not, it should
be non-core.  We should not remove bots we "don't like", or add bots
we "hope to stay green".

So if you believe the windows bots are regularly green, you should
make them Core.   We can always remove them.  Ideally all bots would
be core!

Along the same logic, we should move bots like Leopard to non-core,
since they haven't been green in weeks (even though I'm sure we wish
it would be green).

Hopefully that helps.


On Wed, Mar 2, 2011 at 9:51 AM, Adam Roben <aroben at apple.com> wrote:
> Hi all-
> I'd like to understand better what the criteria are for a builder to become a "core" builder.
> We've been putting lot of effort into keeping the Windows testers green lately (especially the Windows 7 Release (Tests) builder), and it seems like it would be good for them to eventually join the "core" group so they can reap the benefits of sheriffbot, an increased number of people looking at them, etc. Most of the failures that happen on the Windows bots these days are either due to:
> 1) a new test being added which needs results on Windows
> 2) an existing test with Windows-specific results being modified without the Windows results being updated
> 3) test flakiness
> Being in the "core" group seems like it would help with (1) and (2) because the people who are making these changes would notice that they forgot Windows. It wouldn't help with (3), of course. (We're obviously trying to track down all causes of flakiness we can.)
> So what does it take for a builder to be a "core" builder? Once we know this, we can hopefully focus our Windows efforts toward satisfying the criteria.
> Thanks!
> -Adam
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