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From Alexei Kosut <>
Subject Re: [PATCH] writev() combining for large bwrites
Date Fri, 25 Jul 1997 17:55:34 GMT
On Fri, 25 Jul 1997, Rasmus Lerdorf wrote:

> > This is the patch I wanted to get in to anticipate mmap() development
> > later.  
> We have to make sure not to enable mmap() on Alphas running OSF.  mmap()
> is very broken on that OS.  Keep that in mind if/when the Configure stuff
> is done to determine if mmap() should be used.

We already do Configure stuff to determine if mmap() should be used,
since we use it (optionally) for the scoreboard. The HAVE_MMAP define in
conf.h determines whether it is availble for a given OS. I do see a
#define HAVE_MMAP in the OSF1 section...

-- Alexei Kosut <>

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