did anything change in F18+ building stack which would increase the requirements?

[Julian Sikorski]

W dniu 2012-11-24 15:05, Julian Sikorski pisze:
> W dniu 24.11.2012 14:37, Panu Matilainen pisze:
>> On 11/23/2012 09:19 PM, Julian Sikorski wrote:
>>> W dniu 22.11.2012 07:55, Panu Matilainen pisze:
>>>> On 11/22/2012 12:03 AM, Julian Sikorski wrote:
>>>>> W dniu 10.11.2012 10:51, Julian Sikorski pisze:
>>>>>> Hi,
>>>>>>
>>>>>> I was wondering if it was possible to monitor the maximum and/or
>>>>>> average
>>>>>> memory usage of a mock build process. I am trying to investigate why a
>>>>>> package takes less 2 hours to build on F16/F17, 24 hours on F18 and 7
>>>>>> hours on rawhide:
>>>>>> https://bugzilla.rpmfusion.org/show_bug.cgi?id=2554
>>>>>>
>>>>>> Regards,
>>>>>> Julian
>>>>>>
>>>>> Hi,
>>>>>
>>>>> I would like to follow up on this issue. I did not notice the
>>>>> differences when mock building locally, but on the plague RPM Fusion
>>>>> builder it took 2 hours on F16/F17 and 30 (sic!) on F18 to build mame.
>>>>> Suspecting memory usage issue I already added
>>>>>
>>>>> %global optflags %{optflags} -Wl,--no-keep-memory
>>>>> -Wl,--reduce-memory-overheads
>>>>>
>>>>> to the spec file. Thank you for the input in advance.
>>>>
>>>> Here's one difference between F18 and earlier that does affect memory
>>>> usage:
>>>> https://fedoraproject.org/wiki/Features/DwarfCompressor
>>>> See https://bugzilla.redhat.com/show_bug.cgi?id=833311 and
>>>> /etc/rpm/macros.dwz for further info on memory consumption and tunables.
>>>>
>>>> But then this is the same in rawhide and f18 so it doesn't explain why
>>>> the build takes *that* much longer on f18.
>>>>
>>>>       - Panu -
>>> Is there a macro to disable this from within the spec so that I can
>>> check whether dwz is the culprit?
>>
>> This should disable dwz entirely:
>>
>> %global _find_debuginfo_dwz_opts %{nil}
>>
>>      - Panu -
>>
>>      - Panu -
> Thank you. I have submitted a build with dwz disabled, let's see how
> long it takes.
>
> Julian
>
That was it, build with dwz disabled took 2 hours as f17 and f16 ones. 
Do you think it would make sense to look into changing the default 
setting, or should we (at RPM Fusion) rather look into giving the 
builder more memory?

Regards,
Julian