Re: [Qemu-devel] [PATCH v5 13/14] travis: improve python version test coverage

["Daniel P. Berrangé" <berrange@redhat.com>]

On Thu, May 31, 2018 at 01:09:37PM -0300, Philippe Mathieu-Daudé wrote:
> Hi Daniel,
> 
> On 01/16/2018 10:42 AM, Daniel P. Berrange wrote:
> > Currently travis declares ancient python 2.4 is desired. Update that to
> > 2.6 which is the oldest version any targetted distros still needs. If we
> > just list a python 3 version at the top level this will double the
> > number of travis jobs we run which is unreasonable.
> > 
> > So arbitrarily pick the clang test matrix entries to build with python
> > 3.0 and 3.6, to extend coverage of python versions, without increasing
> > job count or build time.
> 
> I'm seeing 3.0 builds taking the double time than 3.6 builds (and
> triggering the 50min timeout), any idea what could cause this huge
> difference?

Ouch, that's real bad. I don't have any bright ideas, other than fact
that its a .0 release, so perhaps it was just really bad.

Wonder at which 3.x release it got "fast"

> 
> > 
> > Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
> > ---
> >  .travis.yml | 14 +++++++++-----
> >  1 file changed, 9 insertions(+), 5 deletions(-)
> > 
> > diff --git a/.travis.yml b/.travis.yml
> > index f583839755..708c886017 100644
> > --- a/.travis.yml
> > +++ b/.travis.yml
> > @@ -1,7 +1,7 @@
> >  sudo: false
> >  language: c
> >  python:
> > -  - "2.4"
> > +  - "2.6"
> >  compiler:
> >    - gcc
> >  cache: ccache
> > @@ -115,15 +115,17 @@ matrix:
> >          - sudo apt-get build-dep -qq qemu
> >          - wget -O - http://people.linaro.org/~alex.bennee/qemu-submodule-git-seed.tar.xz | tar -xvJ
> >          - git submodule update --init --recursive
> > -    # Trusty System build with latest stable clang
> > +    # Trusty System build with latest stable clang & python 3.0
> >      - sudo: required
> >        addons:
> >        dist: trusty
> >        language: generic
> >        compiler: none
> > +      python:
> > +        - "3.0"
> >        env:
> >          - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
> > -        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9"
> > +        - CONFIG="--disable-linux-user --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
> >        before_install:
> >          - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
> >          - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'
> > @@ -134,15 +136,17 @@ matrix:
> >          - git submodule update --init --recursive
> >        before_script:
> >          - ./configure ${CONFIG} || cat config.log
> > -    # Trusty Linux User build with latest stable clang
> > +    # Trusty Linux User build with latest stable clang & python 3.6
> >      - sudo: required
> >        addons:
> >        dist: trusty
> >        language: generic
> >        compiler: none
> > +      python:
> > +        - "3.6"
> >        env:
> >          - COMPILER_NAME=clang CXX=clang++-3.9 CC=clang-3.9
> > -        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9"
> > +        - CONFIG="--disable-system --cc=clang-3.9 --cxx=clang++-3.9 --python=/usr/bin/python3"
> >        before_install:
> >          - wget -nv -O - http://llvm.org/apt/llvm-snapshot.gpg.key | sudo apt-key add -
> >          - sudo apt-add-repository -y 'deb http://llvm.org/apt/trusty llvm-toolchain-trusty-3.9 main'
> > 

Regards,
Daniel
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