"Marc A. Volovic" <[EMAIL PROTECTED]> writes:
> Example of an idiotic benchmark:
>
> int
> main()
> {
> long long i;
> double q;
>
> for (i=0; i<10000000; i++) {
> q = sqrt(i);
> }
> }
>
> Under gcc 3.3.5 (Debian Sarge) this pile of drek executes in 1.4-1.8
> seconds (depending on -O level). Under icc 9.0 it executes between in
> 3.4 seconds for -O0 and -O1, and in 0.015 seconds for -O2.
>
> And don't tell me this is not a valid benchmark.
A valid benchmark for what? Either I missed a thread (may be), or this
is related to Shachar's query about a fastest 64-bit CPU (where you
advised him to use icc, and you CCed Shachar here). If it is related
to that, then it does not look a valid (valid=relevant) benchmark:
Shachar is interested in integer performance, and this is floating
point.
--
Oleg Goldshmidt | [EMAIL PROTECTED] | http://www.goldshmidt.org
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