More on compile performance of Linux kernels in mainline gcc

[Richard Earnshaw]

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.

R.