Big size of repo after build.

[pawelszewc]

Building Paddle from source generates large amount of data.
With setting flag WITH_TESTING to OFF repo size is 12GB.
With setting flag WITH_TESTING to ON repo size is 25GB.
Is that correct behavior?
For example Tensorflow repo size after build is around 400 MB

[luotao1]

Yes, our building repo size is large now. If you use Linux + Docker, you can set DCMAKE_BUILD_TYPE=Release to further decrease the repo size. (related #7969 (comment))

And since our repo contains old PaddlePaddle + fluid, after we complete with_fluid compile option (#6346) , the building repo size will further decrease.

[pawelszewc]

Thanks for explanation @luotao1

[luotao1]

@pawelszewc with_fluid compile option is finished by #9067. Feel free to contact us if any questions when using this option.