Tim Vanderhoek scribbled this message on Jul 29:
> On Thu, Jul 29, 1999 at 07:05:57PM -0400, James Howard wrote:
> >
> > <warning type="Anything said here wrong is my fault, not DES's">
> >
> > DES tells me he has a new version (0.10) which mmap()s. It supposedly
> > cuts the run time down significantly, I do not have the numbers in front
> > of me.
>
> I do. Still far too slow. I'll work on this tomorrow, since that
> seems the only way to convince people that mmap is not such a big
> win. :-(
I just managed to get a five time speed increase by removing an
uncessary copy... and now, grep spends 50% of it's time in regexc,
37.2% of it's time in mmfgetln, and this is because of the scanning for a
new line character...
> Hmm... Maybe I'll even turn-out to be wrong. ;-) I really believe
> mmap falls into the category of "might be nice, but not necessary and
> does complicate things..."
I think it is a big win... it shaved off around a half second from
3 seconds down to 2 and a half seconds...
--
John-Mark Gurney Voice: +1 541 684 8449
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The event is only the actualizing of its thought." -- Ralph Waldo Emerson
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