On Mon, May 27, 2019 at 1:49 AM Tadeus Prastowo <tadeus.prastowo@xxxxxxxx> wrote: > Once debuild is done, I installed the aforementioned DEB files and > found out that the installed /usr/bin/g++-9 still compiles faster as > before. So, I have failed to identify the factor in the PPA build > process that makes the resulting compiler faster than mine, which was > built from the release tarball using configure & make. Any idea how > to find the factor that results in a faster compiler? Is it really > the build process or the way the resulting compiler is installed that > gives the speed up? For example, does symbol stripping have any > effect (I tried already to strip all symbols out of the executables > found in my GCC-9 installation with `strip -s' but to no avail)? > Perhaps some compiler libraries are installed in a particular way in > Ubuntu? I guess the Ubuntu package uses "make profiledbootstrap", which you don’t get (IIRC) when just issuing "make".
