[OE-core] [PATCHv2 0/2] Multi-threaded RPM support

[Alexander Kanavin]

On 06/09/2017 12:15 AM, Leonardo Sandoval wrote:
> On Thu, 2017-06-08 at 17:42 +0300, Alexander Kanavin wrote:
>> Changes in version 2: use openmp for multi-processing instead of NSPR library, as
>> requested by upstream. Add a link to the upstream submission to patches.
>>
>> These two patches add multi-threaded features to RPM to speed up the do_package_write_rpm task.
>>
>> Specifically:
>>
>> 1) Multi-threaded xz compressor is used instead of default single-threaded gz. This has the most
>> dramatic effect when a recipe produces a smaller number of large-sized packages.
>>
>> 2) Packages creation is run in multiple threads via thread pools. This is most beneficial when
>> a recipe produces a large amount of small packages.
>>
>> Some not very scientific benchmarks for time and .rpm sizes
>> (time is measured for do_package_write_rpm tasks only):
>>
>
> Tried v2 again and I am getting this problem (segmentation faults):
>
> http://errors.yoctoproject.org/Errors/Build/38812/
>
>
> The idea I have is to get some numbers from buildstats and have better
> insight of the impact of this series. BTW, I tried core-image-sato.

Now I see the issue locally, even though it does not crash, but I think 
it's the same issue :) Bear with me, it's my first openmp adventure ever.

Alex