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Re: A patch for xlog.c

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: The Hermit Hacker <scrappy(at)hub(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Matthew Kirkwood <matthew(at)hairy(dot)beasts(dot)org>, pgsql-patches(at)postgresql(dot)org
Subject: Re: A patch for xlog.c
Date: 2001-02-27 16:36:29
Message-ID: 200102271636.LAA16214@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
> The Hermit Hacker writes:
> 
> > > Yea, it is pretty low priority, especially since most OS's don't support
> > > ANON mmap().  Most BSD's support it, but I don't think Linux or others
> > > do.
> >
> > ah, then not a low priority, a non-starter, period ... maybe when all the
> > OSs we support move to supporting ANON mmap() :(
> 
> It would be worthwhile for those operating systems that don't have SysV
> shared memory but do have mmap().  But I don't have one of those, so I
> ain't gonna do it.  ;-)

All have SysV memory.  mmap() usage is only useful in enabling larger
buffers without kernel changes.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman(at)candle(dot)pha(dot)pa(dot)us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

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