Greg Smith wrote:
> Bruce Momjian wrote:
> > xlogdefs.h says:
> >
> > /*
> > * Because O_DIRECT bypasses the kernel buffers, and because we never
> > * read those buffers except during crash recovery, it is a win to use
> > * it in all cases where we sync on each write(). We could allow O_DI
Greg Smith wrote:
> Bruce Momjian wrote:
> > xlogdefs.h says:
> >
> > /*
> > * Because O_DIRECT bypasses the kernel buffers, and because we never
> > * read those buffers except during crash recovery, it is a win to use
> > * it in all cases where we sync on each write(). We could allow O_DI
Bruce Momjian wrote:
xlogdefs.h says:
/*
* Because O_DIRECT bypasses the kernel buffers, and because we never
* read those buffers except during crash recovery, it is a win to use
* it in all cases where we sync on each write(). We could allow O_DIRECT
* with fsync(), but because skippi
On Wed, Jan 19, 2011 at 1:53 PM, Bruce Momjian wrote:
> Is there a reason we only use O_DIRECT with open_* sync options?
> xlogdefs.h says:
>
> /*
> * Because O_DIRECT bypasses the kernel buffers, and because we never
> * read those buffers except during crash recovery, it is a win to use
> *
Is there a reason we only use O_DIRECT with open_* sync options?
xlogdefs.h says:
/*
* Because O_DIRECT bypasses the kernel buffers, and because we never
* read those buffers except during crash recovery, it is a win to use
* it in all cases where we sync on each write(). We could allow O_D
