[PATCH v2 1/2] powerpc/selftest: Add gettimeofday() benchmark

Gabriel Paubert paubert at iram.es
Fri Sep 25 19:37:48 AEST 2015

On Fri, Sep 25, 2015 at 12:28:30PM +0300, Denis Kirjanov wrote:
> On 9/25/15, Arnd Bergmann <arnd at arndb.de> wrote:
> > On Friday 25 September 2015 14:01:39 Michael Neuling wrote:
> >> This adds a benchmark directory to the powerpc selftests and adds a
> >> gettimeofday() benchmark to it.
> >>
> >> Suggested-by: Michael Ellerman <mpe at ellerman.id.au>
> >> Signed-off-by: Michael Neuling <mikey at neuling.org>
> >>
> >
> > Any reason for keeping this powerpc specific? It seems generally useful.
> > and portable.
> You're right. Moreover, we can put some comment to the benchmark why
> we've made such decision to add it (reference to the commit
> "powerpc/vdso: Avoid link stack corruption in __get_datapage()")

Why gettimeofday? Isn't clock_gettime the modern variant?

BTW: dows anyone receive 2 copies of every messge in this thread ?

I do, and I suspect that this is due to the Cc: list having both
linuxppc-dev at ozlabs.org and linuxppc-dev at lists.ozlabs.org. I removed the
former for this reply.


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