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

[Vlad H. <hv...@us...>]

"Alexandre Benson Smith" :

> Vlad Horsun wrote:
> >     Look at second part of 
> > "RFC: Look-ahead disk space allocation and no use of file system cache"
> > from Jan 24, 2007
> >
> >     This second part is implemented (for Windows only) but still not committed
> >
> > Regards,
> > Vlad
> >   
> 
> Hi Vlad !
> 
> Thanks for the reminder, I had forgot that part of your proposal...
> 
> As I see in windows it will works exactly as I wish, but on linux I saw 
> it will use SYNC (works as FW = on) so the double caching will still be 
> in place on linux ?

    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 

Regards,
Vlad