parallel check output changes?

Bernd Schmidt bernds@codesourcery.com
Thu Sep 18 17:33:00 GMT 2014


On 09/18/2014 05:03 PM, Andrew MacLeod wrote:
> On 09/18/2014 09:05 AM, Andrew MacLeod wrote:
>> On 09/18/2014 09:01 AM, Jakub Jelinek wrote:
>>> On Thu, Sep 18, 2014 at 08:56:50AM -0400, Andrew MacLeod wrote:
>>>> Has the changes that have gone into the check parallelization made
>>>> the .sum
>>>> file non-deterministic?
>>>> I'm seeing a lot of small hunks in different orders which cause my
>>>> comparison scripts to show big differences.
>>>> I haven't been paying attention to the nature of the make check
>>>> changes so
>>>> Im not sure if this is expected...
>>>>
>>>> Or is this something else?  Its the same code base between runs,
>>>> just with a
>>>> few changes made to some include files.
>>> I'm using contrib/test_summary and haven't seen any non-determinisms
>>> in the
>>> output of that command.  As for dg-extract-results.sh, we have two
>>> versions
>>> of that, one if you have python 2.6 or newer, another one if you don't.
>>> Perhaps the behavior of those two (I'm using the python version
>>> probably)
>>> differs?
>>>
>>>     Jakub
>> Not sure, although I do have python 2.7.5 installed for what its
>> worth...  I'll try another run in a bit.
>>
>> Andrew
>
> hum. My 3rd run (which has no compilation change from the 2nd one) is
> different from both other runs  :-P.   I did tweak my -j parameter in
> the make check, but that is it.

I'm also seeing this. Python 3.3.5 here.


Bernd




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