Re: Fsync on/off For Various Filesystems/Platforms (Ending - Mailing list pgsql-general

From Bruce Momjian
Subject Re: Fsync on/off For Various Filesystems/Platforms (Ending
Date
Msg-id 200203092100.g29L04106330@candle.pha.pa.us
Whole thread Raw
In response to Fsync on/off For Various Filesystems/Platforms (Ending Note)  (Mark kirkwood <markir@slingshot.co.nz>)
List pgsql-general
Mark kirkwood wrote:
> Damn... too quick with the "send" button.
>
> I forgot to mention :
>
> 1) the test involved usng copy to load the rows !

Oh, COPY.  Remember fsync of WAL only happens at the end of a
transaction, and with COPY, that is only once the table is completely
loaded.  No wonder you saw strange results.  Also, someone reported ext3
as 50% slower than ext2, so again, your numbers are a surprise.

--
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