[webkit-dev] Subpixel layout - requesting help for big rebaseline

Dirk Pranke dpranke at chromium.org
Wed Aug 22 12:49:32 PDT 2012

The Chromium canaries now exit after 5000 failures or 1000 crashes/timeouts.

Ideally we'd hold off on this change until we can get some sort of a
fix or workaround to https://bugs.webkit.org/show_bug.cgi?id=94665
though (and I'm working on this today), or life might be annoyingly
painful for us.

-- Dirk

On Wed, Aug 22, 2012 at 10:09 AM, Ojan Vafai <ojan at chromium.org> wrote:
> IIRC, the chromium bots no longer exit early due to a large number of
> failures (right Dirk?), only due to a large number of crashes/timeouts. So,
> it should be possible to commit this, wait for the bots to cycle, do all the
> rebaselines at once and commit that. The only delay is that we'd have to
> wait for the slowest of the bots to cycle.
> Given that Emil/Levi have already verified the correctness of the new
> results, the gardener can just hit the rebaseline all button in
> garden-o-matic, so it shouldn't be too arduous as long as there aren't a
> bunch of commits at the same time that also break a bunch of tests.
> In short, I don't think committing this is too big of a deal if you are
> willing to coordinate with the Chromium gardener to find a good time.
> The PST gardener today and tomorrow is Ken Russell. If you're in a non-PST
> time zone, the gardener though Monday is Dominic Cooney. My intuition is
> that early in the morning or late at night would be best since 1-6pm PST is
> when the majority of WebKit commits go in, causing other failures that might
> be confused by this patch, but that's really up to Ken/Dominic and you to
> figure out what's best.
> On Wed, Aug 22, 2012 at 6:02 AM, Dominik Röttsches
> <dominik.rottsches at intel.com> wrote:
>> Hi,
>> As another alternative, could we gather all the Chromium bot admins and
>> ask them to temporarily take the bot offline in non-peak hours, create
>> rebaselines per bot with the patch applied, collect those as
>> binary-compatible diffs in one place, and manually land those collected
>> baselines, in short succession together with the patch?
>> Dominik
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