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Looking for C Compiler Performance Info

I am looking for comparitive performance information for C-Compilers.
More especially in the area of Float/Integer computes.

Any information would be appreciated.

tks
Oct 13 '06 #1
2 1664

lxrocks wrote:
I am looking for comparitive performance information for C-Compilers.
More especially in the area of Float/Integer computes.
Compared to what and doing what?

Your question is far too vague [and also off topic] to really be
answered.

Tom

Oct 13 '06 #2

"lxrocks" <lx*****@hotmail.comwrote in message
news:Ol*******************@news-server.bigpond.net.au...
I am looking for comparitive performance information for C-Compilers.
More especially in the area of Float/Integer computes.

Any information would be appreciated.

tks
If you had asked this:
"I am looking for comparitive performance information for Float/Integer
computes"

I'd have recommended searching for results of these performance ranking
methods:
Linpack, Spec2000, Whetstone, Dhrystone

The problem with your original question is: "for C-Compilers." You're not
likely to find too much on this. First, "Float/Integer computes" are
predominantly CPU specific. Second, the tests are frequently written in
Fortran, not C. But, if you do many small specific searches, you might find
enough small pieces of compiler specific information, for a specific cpu,
that you could weave together to form a more comprehensive "picture"...

Here's one:
http://www.willus.com/ccomp_benchmark.shtml

The following may provide some of the information you want. But, of course,
they made no attempt to catalog every C compiler and cpu type:
http://www.netlib.org/benchmark/performance.ps

You might also come across useful statements like this in a LINPACK FAQ:
"NOTE: Gnu g77 and gcc provide better performance than MSVC++ (Digital
Fortran) (or Watcom F77 or C), so we recommend that you use g77 and gcc. "

But, that could be many years out of date.

The best method is probably to compute the results you need by yourself.

You can find a list of (some) of the C compilers for your environment here:
http://groups.google.com/group/comp....ce45991e?hl=en
That list didn't include "Digital Mars" for the DOS and Windows targets:
http://www.digitalmars.com/
Rod Pemberton
Oct 14 '06 #3

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