Hello Dave,
Redhat for example has a very optimal tool chain which they use
for
their Enterprise product line and it is not available to other
distributions (or rebuilds) and thus their resulting binaries and
libraries have been more performant then other Linux distributions we
have tested.
This reminds me of a thread on fedora-devel in April this year:
"Intel's Clear Linux optimizations"
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
That was about compiling the kernel specifically for Intel CPUs only.
not sure if that is related to this topic at all,
Timotheus