Re: Experimental patch for inter-page delay in VACUUM

"Zeugswetter Andreas SB SD" <ZeugswetterA@spardat.at> writes:
> One problem with O_SYNC would be, that the OS does not group writes any 
> more. So the code would need to eighter do it's own sorting and grouping
> (256k) or use aio, or you won't be able to get the maximum out of the disks.

Or just run multiple writer processes, which I believe is Oracle's
solution.
        regards, tom lane