Re: fsync or fdatasync

Gaetano Mendola wrote:
>
> "Bruce Momjian" <pgman(at)candle(dot)pha(dot)pa(dot)us> wrote in message
> news:200209101540(dot)g8AFeOo21086(at)candle(dot)pha(dot)pa(dot)us(dot)(dot)(dot)
> >
> > The original poster was wrong about the default.
> >
> > We use fdatasync where available, and fsync when it is not. We also use
> > O_SYNC on open if it is available.
>
>
> The original poster is me! :-)
>
> I was pointed to a document ( that I don't find anymore )
> where I understood that the default was fsync.
> I'm sorry for the little flame.... :-(
>
>
> PS. It is in the plans to use raw disks ?

No plans. Raw disk is only marginally faster and a lot more
complicated. See the TODO performance link for details.

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073