Re: good pc but bad performance,why?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: "scott(dot)marlowe" <scott(dot)marlowe(at)ihs(dot)com>, Andrew McMillan <andrew(at)catalyst(dot)net(dot)nz>, huang yaqin <hyq(at)gthome(dot)com>, pgsql-performance(at)postgresql(dot)org
Subject: Re: good pc but bad performance,why?
Date: 2004-04-08 02:13:34
Message-ID: 7294.1081390414@sss.pgh.pa.us
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Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)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.

regards, tom lane

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