This is the mail archive of the mailing list for the glibc project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: [PATCH 00/27] S390: Optimize string, wcsmbs and memory functions.

On Thu, Aug 13, 2015 at 04:58:48PM +0200, Stefan Liebler wrote:
> On 08/11/2015 01:16 PM, OndÅej BÃlka wrote:
> >On Wed, Aug 05, 2015 at 12:41:34PM +0200, Stefan Liebler wrote:
> >>ping after release 2.22.
> >>
> >>ok to commit?
> >>Regarding to the wide-string enhancements for tests/benchtests
> >>
> > From performance side I don't have more comments, it looks like nice
> >instruction set. However I couldn't review this on correctness side so
> >who could check assembly for that?
> Thanks for your review.
> Andreas Krebbel will do this.
> Is the enhancement of the tests/benchtests okay?
> >
> >As benchmarks I will shortly post link to next iteration of dryrun
> >framework on this list. It allows to collect call traces and replay
> >functions with same arguments. While not as accurate directly measuring
> >timing information of new implementations it gives good approximation of
> >what improvement you will actually get. So could you after I post it
> >also run it?
> >
> Yes, of course. I'll give it a try, but I'm not allowed to post the
> results. Are there any traces of workload available?

And could you at least tell what speedup you got or not?

I didn't publish workloads for all functions yet, only some special
cases. I need to write utilities to limit record size, now it generates
gigabyte large files for strcmp after short while as strcmp is called
that much. Also I didn't add conversions between little/big endian and
alignments could be different.

I would prefer if you did recording for example compiling glibc(or
anything else that interests you), you need to only write following 

mkdir glibcdir
$GLIBC_SOURCE/configure --prefix/usr
cd glibcdir
# end shell

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]