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 |
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Thread: | |
Lists: | pgsql-hackers pgsql-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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