Re: Anything to be gained from a 'Postgres Filesystem'? - Mailing list pgsql-performance

From Matt Clark
Subject Re: Anything to be gained from a 'Postgres Filesystem'?
Date
Msg-id 008b01c4b749$5e0862c0$8300a8c0@solent
Whole thread Raw
In response to Re: Anything to be gained from a 'Postgres Filesystem'?  ("Leeuw van der, Tim" <tim.leeuwvander@nl.unisys.com>)
List pgsql-performance
> Looking at that list, I got the feeling that you'd want to
> push that PG-awareness down into the block-io layer as well,
> then, so as to be able to optimise for (perhaps) conflicting
> goals depending on what the app does; for the IO system to be
> able to read the apps mind it needs to have some knowledge of
> what the app is / needs / wants and I get the impression that
> this awareness needs to go deeper than the FS only.

That's a fair point, it would need be a kernel patch really, although not
necessarily a very big one, more a case of looking at FDs and if they're
flagged in some way then get the PGfs to do the job instead of/as well as
the normal code path.


pgsql-performance by date:

Previous
From: Pierre-Frédéric Caillaud
Date:
Subject: Re: Anything to be gained from a 'Postgres Filesystem'?
Next
From: "Steinar H. Gunderson"
Date:
Subject: Re: Anything to be gained from a 'Postgres Filesystem'?