Brian D. McGrew <brian@xxxxxxxxxxxxx> writes:
> Good morning,
>
> We have a software tree that we compile for Solaris Sparc and Linux
> X86. There are several versions this software that we support, 4.5.3
> and 4.7 are still our current versions. We compile up 4.5.3 for
> Solaris and Linux with gcc-295. 4.7 is compiled with gcc-32.
>
> The problem that we're seeing is this: 4.5.3 and 4.7 run almost the
> same speed on Linux. However, on Solaris Sparc 4.5.3 runs about 10x
> faster than the Linux version.
Could you rephrase this? I can't tell whether you mean '4.5.3 on
solaris is 10 times faster than 4.7 on solaris', or '4.5.3 on
solaris is 10 times faster than 4.5.3 on linux'.
> All the compile lines and complier
> options are the same (and quoted at the bottom of this message).
>
> Can someone shed some light on to why me might be seeing this
> problem?
Maybe you should try a profiler?
> The compile line that I pasted is from our Linux build. The only
> differences between Solaris and Linux is the -mtune=ultrasparc and
> -mcpu-v8 options on Sparc.
>
> Any ideas???
>
>
> -brian
>
> Brian D. McGrew { brian@xxxxxxxxxxxxxxxxxxx ||
> pacemakertaker@xxxxxxxxx }
> --
> > YOU! Off my planet!
>
> Begin forwarded message:
>
> > From: "Brian D. McGrew" <brian@xxxxxxxxxxxxxxxxxxxxxxxx>
> > Date: April 27, 2004 6:53:24 AM PDT
> > To: brian@xxxxxxxxxxxxxxxxxxxxxxxx, brian@xxxxxxxxxxxxx,
> > brian@xxxxxxxxxxxxxxxxxxx
> > Subject: GCC
> >
> > /usr/local/gnu/gcc-332/bin/g++ -c -fPIC -g -O0 -DALGODEBUG
^^^ If performance is
important this could be
a problem.
