On 24/06/14 15:11, Vladimir Makarov wrote:
A few people asked me about new performance comparison of latest GCC
and LLVM. So I've finished it and put it on my site
http://vmakarov.fedorapeople.org/spec/
The comparison is achievable from 2014 link and links under it in
the left frame.
These pages are also achievable as
http://vmakarov.fedorapeople.org/spec/2014/2014.html -- what I
compare, my motivation, major results, and my conclusions.
http://vmakarov.fedorapeople.org/spec/2014/llvmgcc64.html -- The
results of comparison on x86-64 SPECInt2000
http://vmakarov.fedorapeople.org/spec/2014/arm.html -- The
results of comparison on ARM SPECInt2000
Interesting ...
On ARM, I note that by default you are generating code for fpu=vfpv3-d16
and armv7-a. Of interest is the fact that you aren't using the Neon unit
at all if you configure the compiler with --with-fpu=vfpv3-d16
Did you add any other architecture specific options to your SPEC2k runs ?
regards
Ramana
If you need exact numbers they can be found in the tables.
If you have any comments and proposals, please feel free to write
me. I try to take them into account next year.