[llvm-dev] Buildbots timing out on full builds

Vitaly Buka via llvm-dev
Sun, 21 May 2017 10:16:00 -0000

It must be r303341, I commented on corresponding llvm-commits thread.

On Fri, May 19, 2017 at 7:34 AM, Diana Picus via llvm-dev <
llvm-dev at lists.llvm.org> wrote:

> Ok, thanks. I'll try to do a bisect next week to see if I can find it.
>
> Cheers,
> Diana
>
> On 19 May 2017 at 16:29, Daniel Sanders <daniel_l_sanders at
apple.com>
> wrote:
> >
> >> On 19 May 2017, at 14:54, Daniel Sanders via llvm-dev <
> llvm-dev at lists.llvm.org> wrote:
> >>
> >> r303259 will have increased compile-time since it tripled the
number of
> importable
> >> SelectionDAG rules but a quick measurement building the affected
file:
> >>    ninja lib/Target/<Target>/CMakeFiles/LLVM<Target>
> CodeGen.dir/<Target>InstructionSelector.cpp.o
> >> for both ARM and AArch64 didn't show a significant increase.
I'll check
> whether
> >> it made a different to linking.
> >
> > I don't think it's r303259. Starting with a fully built
r303259, then
> updating to r303258 and running 'ninja' gives me:
> >         real    2m28.273s
> >         user    13m23.171s
> >         sys     0m47.725s
> > then updating to r303259 and running 'ninja' again gives me:
> >         real    2m19.052s
> >         user    13m38.802s
> >         sys     0m44.551s
> >
> >> sanitizer-x86_64-linux-fast also timed out after one of my commits
this
> morning.
> >>
> >>> On 19 May 2017, at 14:14, Diana Picus <diana.picus at
linaro.org> wrote:
> >>>
> >>> Hi,
> >>>
> >>> We've noticed that recently some of our bots (mostly
> >>> clang-cmake-armv7-a15 and clang-cmake-thumbv7-a15) started
timing out
> >>> whenever someone commits a change to TableGen:
> >>>
> >>> r303418: http://lab.llvm.org:8011/builders/clang-cmake-armv7-
> a15/builds/7268
> >>> r303346: http://lab.llvm.org:8011/builders/clang-cmake-armv7-
> a15/builds/7242
> >>> r303341: http://lab.llvm.org:8011/builders/clang-cmake-armv7-
> a15/builds/7239
> >>> r303259: http://lab.llvm.org:8011/builders/clang-cmake-armv7-
> a15/builds/7198
> >>>
> >>> TableGen changes before that (I checked about 3-4 of them)
don't have
> >>> this problem:
> >>> r303253: http://lab.llvm.org:8011/builders/clang-cmake-armv7-
> a15/builds/7197
> >>>
> >>> That one in particular actually finishes the whole build in
635s,
> >>> which is only a bit over 50% of the timeout limit (1200s). So,
between
> >>> r303253 and now, something happened that made full builds
> >>> significantly slower. Does anyone have any idea what that
might have
> >>> been? Also, has anyone noticed this on other bots?
> >>>
> >>> Thanks,
> >>> Diana
> >>
> >> _______________________________________________
> >> LLVM Developers mailing list
> >> llvm-dev at lists.llvm.org
> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
> >
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.llvm.org/pipermail/llvm-dev/attachments/20170521/1cbe85b4/attachment-0001.html>