Re: [Firebird-devel] FB 2.1 64bit and memory usage ??

[Leyne, S. <Se...@br...>]

Alex,

> >     On posix it will use or O_DIRECT flag (trivial to implement) or
> > posix_fadvise calls (need think more on it).
> >
> >     I still don't know what is better as i can't test it
>=20
> O_DIRECT looks well for raw partitions, though not sure will it give
some
> real effect or not. Also seems that we must allocate page on sector
> boundary to make it work.

That is not a problem.

Disk sectors have been 512 bytes for the last 20 years and likely for
many more.  Accordingly, our disk accesses will always be on sector
boundaries.


Sean