Thread: Direct I/O and Linux 2.4

An earlier post referenced a bunch of Oracle performance pages. One of
them,

http://www.ixora.com.au/notes/direct_io.htm

indicates that on Linux 2.4 kernels one can use Direct I/O (if you DB
supports it).

Does Postgresql support the use of Direct I/O or Raw I/O? Base on
another page

http://www.ixora.com.au/tips/avoid_buffered_io.htm

it would seem that not using one of these "wastes" alot of RAM.

Just curious .... I am a couple of months away from production.

Richard

Richard Emberson writes:

> Does Postgresql support the use of Direct I/O or Raw I/O?

No.  And no one has announced any concrete plans to implement it either.

--
Peter Eisentraut   peter_e@gmx.net