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Re: A patch for xlog.c

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: The Hermit Hacker <scrappy(at)hub(dot)org>
Cc: 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: 2001-02-25 20:10:09
Message-ID: 200102252010.PAA28020@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
> > > pgsql-hackers is the place to discuss anything that's experimental or
> > > otherwise concerned with future development.
> > >
> > > > [ possible merits of mmap ]
> > >
> > > Let's take up that discussion in pghackers.
> >
> > I always felt the real benefit of mmap() would be to remove use of SysV
> > shared memory and use anon mmap() to prevent problems with SysV share
> > memory limits.
> 
> You'll still have memory limits to overcome ... per user memory limits
> being one ... there is no such thing as a 'cure-all' ...

Yes, but typical SysV shared memory limits are much lower than
per-process limits.

-- 
  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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