[EMAIL PROTECTED] wrote:
> On 26 Mar, Manfred Spraul wrote:
> > [EMAIL PROTECTED] wrote:
> > 
> >>Compare file sync methods with one 8k write:
> >>        (o_dsync unavailable)  
> >>        open o_sync, write       6.270724
> >>        write, fdatasync        13.275225
> >>        write, fsync,           13.359847
> >>  
> >>
> > Odd. Which filesystem, which kernel? It seems fdatasync is broken and 
> > syncs the inode, too.
> 
> It's linux-2.6.5-rc1 with ext2 filesystems.

Would you benchmark open_sync for wal_sync_method too?

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

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