This is the mail archive of the
gcc@gcc.gnu.org
mailing list for the GCC project.
Re: More on compile performance of Linux kernels in mainline gcc
> On Wed, 2004-11-03 at 11:34, Jan Hubicka wrote:
>
> > The hot/cold paritioning heuristics declare basic block hot iff it
> > executes at least 10000 fewer times than the most hot basic block in
> > program, this seemed quite conservative at first glance...
>
> That depends on how long the program runs.
>
> Surely the heuristic should be based on ratios not on absolute numbers.
It is ratio - maximal_count/10000 ;)
Honza
>
> R.