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[OT] GCC vs Intel C++ compiler benchmark
- From: Claus Fischer <claus dot fischer at clausfischer dot com>
- To: gcc at gcc dot gnu dot org
- Date: Sun, 27 Jan 2002 12:48:21 +0100
- Subject: [OT] GCC vs Intel C++ compiler benchmark
The rather biased article on http://www.open-mag.com/754088105111.htm
compares Intel's C++ favourably to GCC, without disclosing many
enlightening details.
I'm not concerned with that but with the notable OS difference
between Linux (SuSE 7.3) and Windows (XP Pro). IMHO a CPU bound
benchmark should see less than 1 % influence from OS and C library.
The graphics shows roughly 7% better performance on Windows for the
same (Intel) compiler.
Are there any ABI differences which would justify such a difference?
Register use conventions? Other stuff that you could identify?
Unfortunately the benchmark gives no details about compiler options,
so presumably the answer is `the benchmark is flawed' and `go ask
them'. In this case don't bother to answer.
Claus
--
Claus Fischer <claus.fischer@clausfischer.com>
http://www.clausfischer.com/