[Bug libfortran/15516] assembly snippets for nano second resolution wall clock time

[Helge dot Avlesen at bccs dot uib dot no]

------- Comment #3 from Helge dot Avlesen at bccs dot uib dot no  2007-02-12 10:03 -------
Subject: Re:  assembly snippets for nano second resolution wall clock time

"jv244 at cam dot ac dot uk" <gcc-bugzilla@gcc.gnu.org> writes:

> is this comment about get_clockfreq.o actually correct ? I find it returns
> different values depending on the load of the machine (I guess this is
> frequency rescaling at work, i.e.):

yup, it is rescaling. should be turned off if you want reliable high
res measurements.

Helge


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15516