[Info-vax] x86-64 data aligment / faulting
Simon Clubley
clubley at remove_me.eisner.decus.org-Earth.UFP
Sun Feb 27 08:08:45 EST 2022
On 2022-02-26, Arne Vajhøj <arne at vajhoej.dk> wrote:
>
> GFortran/Windows/x86-64 (100x more reps):
>
> OFFSET 0 : 7473 ms
> OFFSET 1 : 7285 ms
> OFFSET 2 : 7301 ms
> OFFSET 3 : 7301 ms
> OFFSET 4 : 7269 ms
> OFFSET 5 : 7208 ms
> OFFSET 6 : 7191 ms
> OFFSET 7 : 7192 ms
> OFFSET 8 : 7519 ms
> OFFSET 9 : 7285 ms
> OFFSET 10 : 7270 ms
> OFFSET 11 : 7285 ms
> OFFSET 12 : 7270 ms
> OFFSET 13 : 7207 ms
> OFFSET 14 : 7176 ms
> OFFSET 15 : 7176 ms
> OFFSET 16 : 7473 ms
>
In situations like this Arne, it is _always_ a good idea to have
a look at the generated code just to make sure that the compiler
has not done anything unexpected.
Simon.
--
Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.
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