[webkit-qt] QtWebKit trunk development after 5.0 release - questions

[Simon Hausmann]

On Monday, February 11, 2013 05:32:20 PM Árvai, Zoltán wrote:
> Hi QtWebKit hackers,
> 
> we started upgrading QtWebKit buildbots and EWS bots
> today to Ubuntu 12.04 LTS + GStreamer 1.0 + Qt 5.0.1 .

Lovely!
 
> Using GStreamer 1.0 will be mandatory soon, see this mail for details:
> https://lists.webkit.org/pipermail/webkit-dev/2013-January/023246.html
> (You can easily install GStreamer 1.0 on Ubuntu 12.04 - see
>   https://trac.webkit.org/wiki/QtWebKitGardening for details)
> 
> It is a high time to review which bots we still need, which bots we
> don't need anymore. Or do we need new bots with different configuration?
> 
> Currently we have the following bots:
> 
> build.webkit.org
> =================
> 
> - Qt Linux Release - 32 bit WK1 only build + layout tests + API tests

This doesn't have WK2 anymore because of the WK2 lockdown, right?

> - Qt Linux Release minimal - 32 bit WK1 only build
>    (good for catching broken ifdef guards)
> - Qt Windows 32-bit Release - WK1/WK2 build
>    (MS Win Server 2008 R2, MS Visual Studio 2010 Express)
> 
> performance bots:
> ------------------
> - Qt Linux 64-bit Release (Perf) - WK1 only build and perf tests
> - Qt Linux 64-bit Release (WebKit2 Perf) - WK2 build and perf tests
> 
> The performance results are collected by perf-o-matic server -
> http://webkit-perf.appspot.com , but this tool is not user friendly
> to catch performance regressions, because you have to select tests
> one by one and check them manually. Nowadays they collect performance
> results, but in these circumstances we need someone who actively checks
> them. Do we want to appoint someone, or reuse these resources for more
> important tasks?

What's a good frequency for checking? How much work is it? Can it be done once 
a week with an effort of say 30 minutes?
 
> offline bots:
> --------------
> - Qt Linux ARMv7 Release - It is offline, because we have a same
>    bot on build.webkit.sed.hu to build ARM binaries for the tester bot.
> 
> - Qt Windows 32-bit Debug - We used it when cross compiling on Linux was
>    possible with MinGW (with Qt 4.8). But now the Windows build works
>    with MSVC on native Windows and we don't have more Windows hardware.
> 
> These bots were not used for a long time. We suggest to
> delete them completely from build.webkit.org waterfall.
> What do you think about it?

Sounds good. Although... wouldn't it be nice to have the Qt Linux ARMv7 
Release bot building on build.webkit.org, for better visibility?
 
> bots maintained by the community:
> ----------------------------------
> - Qt Linux MIPS32R2 LE Release
> - Qt Linux SH4 Release
> - Qt Mountain Lion Release - maintained by INdT
>    (Is INdT still intereseted in QtWebKit on Mac?)
> 
> 
> build.webkit.sed.hu
> ====================
> - x86-64 Linux Qt Release - 64 bit WK1 only build + layout/API tests
> - x86-64 Linux Qt Debug - 64 bit WK1 only build + layout/API tests
> - x86-64 Linux Qt Release WebKit2 (Amazon EC2) -
>        64 bit build + WK2 layout/API tests
> - x86-64 Linux Qt Release WebKit2 (Pixel Tests)
>        64 bit build + WK2 UI process side pixel tests
> - x86-32 Linux Qt Release WebKit2
>        32 bit build + WK2 layout/API tests
> - x86-64 Mountain Lion Qt Release(WebGL Tester)(maintained by zalbisser)
>        64 bit build + fast/canvas/webgl WK2 tests + API tests
> - x86-32 Linux Qt Release NRWT
>        32 bit WK1 only builder + layout tests with 4 parallel threads
>    (It is an experimental bot, because parallel testing is very flakey,
>     on Qt, see https://bugs.webkit.org/show_bug.cgi?id=77730 and
>     https://bugs.webkit.org/show_bug.cgi?id=106218 for details.)
> - ARMv7 Linux Qt5 Release (Build) - WK1 only build for ARM traditional
>    platform (ARM instruction set, not Thumb2)
> - ARMv7 Linux Qt5 Release (Test) - JSC+layout tests on a Panda board
> - x86-32 Linux Qt Debug - 32 bit WK1 only build + layout/API tests
> 
> Bots for QtWebKit 2.3 (used by carewolf)
> -----------------------------------------
> - QtWebKit2.3-branch x86-32 Linux Release
> - QtWebKit2.3-staging-branch x86-32 Linux Release
> 
> How long do you need to run these bots? After we upgrade the OS to
> Ubuntu 12.04 they might not work properly anymore. To take notice
> of coming 2.3 relase we might be able to migrate them to a virtual
> machine has same environment as the actual one. (Debian Squeeze, Qt 4.8)

Allan?
 
> ---
> 
> We hope we will finish the upgrade this week, you can see the
> status here: https://trac.webkit.org/wiki/QtWebKitBuildBots
> 
> On behalf of Szeged team,
>      Ádám Kallai (kadam) and Zoltán Árvai (azbest_hu)

Excellent work guys! Thanks a lot!


Simon