Re: [GDB 7.6/GCC 4.8.0] Slowdown in GDB macro processing for cores?

Paul Smith
2013-05-28T15:25:22Z

On Wed, 2013-05-22 at 19:14 -0400, Paul Smith wrote:
> On Wed, 2013-05-22 at 14:12 -0600, Tom Tromey wrote:
> > >>>>> "Paul" == Paul Smith <psmith@gnu.org> writes:
> >
> > Paul> The interesting thing is both versions are constantly seeking and
> > Paul> reading to exactly the same location, over and over again. However GDB
> > Paul> 4.6 does it many times more than GDB 7.5.1. For example, I get this
> > Paul> combo:
>
> I have gmon.out from the last "fast" commit and the first "slow" commit;
> I reduced the number of iterations in the macro to 4 (instead of 200) so
> the slow one would not take so long :-).
>
> At this point I'm out of ideas. Please let me know if there's more
> you'd like me to do...

Hi all. I think I'm going to have to back up to GDB 7.5.1; the pain is
too great, when it does happen.

I'll maintain the core file and test setup, so let me know if there's
anything else I can do to help resolve this issue, or if there are
patches you'd like me to try.

Cheers!