[Python-Dev] buildbot's are needlessly compiling -O0

[Nick Coghlan]

On 24 Nov 2013 17:15, "Gregory P. Smith" <greg at krypto.org> wrote:
>
> our buildbots are setup to configure --with-pydebug which also
unfortunately causes them to compile with -O0... this results in a python
binary that is excruciatingly slow and makes the entire test suite run take
a long time.
>
> given that nobody is ever going to run a gdb or another debugger on the
buildbot generated transient binaries themselves how about we speed all of
the buildbot's up by adding CFLAGS=-O2 to the configure command line?

The main problem is that doing so would disable test_gdb. Humans don't run
gdb on those binaries, but the test suite does.

I agree it would be nice to figure out a way to run most of the tests on an
optimised build, though.

Cheers,
Nick.

>
> Sure, the compile step will take a bit longer but that is dwarfed by the
test time as it is:
>
>
http://buildbot.python.org/all/builders/AMD64%20Ubuntu%20LTS%203.x/builds/3224
> http://buildbot.python.org/all/builders/ARMv7%203.x/builds/7
>
http://buildbot.python.org/all/builders/AMD64%20Snow%20Leop%203.x/builds/639
>
> It should dramatically decrease the turnaround latency for buildbot
results.
>
> -gps
>
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