Re: Question about -fbranch-probabilities

[Brian Dessent <brian@xxxxxxxxxxx>]

David Bruant wrote:

> I have had an idea which would be to force the end of the algorithm
> thanks to a variable which would end it after 2 hours (for example).
> This way, -fprofile-arcs would have a wide enough sample to improve with
> -fbranch-probabilities, but the "you must use the same source code"
> frightens me because if I add a variable to measure time, it's obviously
> not the same source code.

You could simply install a signal handler that responds to SIGUSR1 or
something and terminates gracefully.  Then you can terminate or leave
running indefinitely your application at will without any source level
changes.

Brian