[ic] [interchange] Only apply GDBM filters if they are not already installed

[Mike Heins]

Quoting Stefan Hornburg (Racke) (racke at linuxia.de):
> On 08/31/2012 04:53 PM, Mike Heins wrote:
> >Quoting David Christensen (david at endpoint.com):
> >>
> >>On Aug 31, 2012, at 5:33 AM, Stefan Hornburg (Racke) wrote:
> >>
> >>>What about using DBM_Filter?
> >>>
> >>>https://metacpan.org/module/DBM_Filter
> >>>
> >>>That seems to have an easier interface and comes with Perl.
> >>>
> >>>Regards
> >>>        Racke
> >>
> >>I believe that's already the interface it's using; see `perldoc perldbmfilter`.
> >>
> >>As far as Mike's concern, we could just do one check to see if it's
> >>already installed. I'll re-review the docs and revise the patch.
> >
> >Thanks, David. I'm a strong believer in trying to cut overhead
> >wherever possible. It's small, but over thousands of requests it
> >can be appreciable.
> >
> 
> What about cutting out all the overhead for "crazy" shipping? O:-)

That's what open source is all about, feel free to change. 8-)

But remember, that is done in arrays and it is arrays for a reason.
You can make fifty looped array references for every object call and
*still* save CPU.

-- 
Mike Heins
Perusion -- Expert Interchange Consulting    http://www.perusion.com/
phone +1.765.253.4194  <mike at perusion.com>

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