Horton

Re: good pc but bad performance,why?

Bruce Momjian <pgman@candle.pha.pa.us>

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From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: "scott.marlowe" <scott.marlowe@ihs.com>, Andrew McMillan <andrew@catalyst.net.nz>, huang yaqin <hyq@gthome.com>, pgsql-performance@postgresql.org
Date: 2004-04-08T03:12:07Z
Lists: pgsql-performance 
Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > Tom Lane wrote:
> >> But it should be okay to set the filesystem to journal only its own
> >> metadata.  There's no need for it to journal file contents.
> 
> > Can you set ext2 to journal metadata?  I didn't know it could do that.
> 
> No, ext2 has no journal at all AFAIK.  But I believe ext3 has an option
> to journal or not journal file contents, and at least on a Postgres-only
> volume you'd want to turn that off.

Right, ext3 has that option.  I don't think XFS needs it (it does
meta-data only by default).

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