Re: O_DIRECT setting - Mailing list pgsql-performance

From Tom Lane
Subject Re: O_DIRECT setting
Date
Msg-id 26123.1095951461@sss.pgh.pa.us
Whole thread Raw
In response to Re: O_DIRECT setting  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: O_DIRECT setting
List pgsql-performance
Bruce Momjian <pgman@candle.pha.pa.us> writes:
> TODO has:
>     * Consider use of open/fcntl(O_DIRECT) to minimize OS caching
> Should the item be removed?

I think it's fine ;-) ... it says "consider it", not "do it".  The point
is that we could do with more research in this area, even if O_DIRECT
per se is not useful.  Maybe you could generalize the entry to
"investigate ways of fine-tuning OS caching behavior".

            regards, tom lane

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