Hi, Leeuw,
On Thu, 21 Oct 2004 12:44:10 +0200
"Leeuw van der, Tim" <tim.leeuwvander@nl.unisys.com> wrote:
> (I'm not sure if it's a good idea to create a PG-specific FS in your
> OS of choice, but it's certainly gonna be easier than getting FS code
> inside of PG)
I don't think PG really needs a specific FS. I rather think that PG
could profit from some functionality that's missing in traditional UN*X
file systems.
posix_fadvise(2) may be a candidate. Read/Write bareers another pone, as
well asn syncing a bunch of data in different files with a single call
(so that the OS can determine the best write order). I can also imagine
some interaction with the FS journalling system (to avoid duplicate
efforts).
We should create a list of those needs, and then communicate those to
the kernel/fs developers. Then we (as well as other apps) can make use
of those features where they are available, and use the old way
everywhere else.
Maybe Reiser4 is a step into the right way, and maybe even a postgres
plugin for Reiser4 will be worth the effort. Maybe XFS/JFS etc. already
have such capabilities. Maybe that's completely wrong.
cheers,
Markus
--
markus schaber | dipl. informatiker
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