Re: [HACKERS] O_DIRECT support for Windows

2007-03-28 Thread Magnus Hagander
On Wed, Mar 28, 2007 at 02:47:12PM +0900, ITAGAKI Takahiro wrote: > Magnus Hagander <[EMAIL PROTECTED]> wrote: > > > IIRC, we're still waiting for performance numbers showing there exists a > > win from this patch. > > Here is a performance number of Direct I/O support on Windows. > There was 10%

Re: [HACKERS] O_DIRECT support for Windows

2007-03-27 Thread ITAGAKI Takahiro
Magnus Hagander <[EMAIL PROTECTED]> wrote: > IIRC, we're still waiting for performance numbers showing there exists a > win from this patch. Here is a performance number of Direct I/O support on Windows. There was 10%+ of performance win on pgbench (263.33 vs. 290.79) in O_DIRECT. However, I onl