Re: [Bug-gnubg] Re: Profiler output

[Jim Segrave]

On Tue 12 Nov 2002 (08:41 +0100), ?ystein O Johansen wrote:
> 
> Which optimization level do you use?
> 
> Have you tried comparing different optimisations leves against each other?
> Have you tried comparing different optimisations levels and different
> compilers against each other?
> 
> Any conclusion?
> 
> When I'm building for windows, I'm using -O2 with gcc-2.95.3, do you think
> I can gain something by update the compiler or change the optimisation
> level?

Under FreeBSD, here are the results for gcc 2.95 -O2 and gcc 3.2 -O2,
with and without inlining EqualKeys():


2.95:

no inline
real    22m58.945s
user    22m40.198s
sys     0m0.484s

inline
real    23m30.233s
user    23m11.330s
sys     0m0.625s

3.2:
no inline
real    21m51.666s
user    21m32.030s
sys     0m0.563s

inline
real    22m59.310s
user    22m38.078s
sys     0m0.586s

inlining EqualKeys doesn't help, switching versions is just under 5%
faster.

-- 
Jim Segrave           address@hidden