Mark Wong wrote:
> Ok, I finally got a couple of tests done against CVS from Aug 3, 2005.
> I'm not sure if I'm showing anything insightful though.  I've learned
> that fdatasync and O_DSYNC are simply fsync and O_SYNC respectively on
> Linux, which you guys may have already known.  There appears to be a

That is not what we thought for Linux, but many other OS's behave that

> fair performance decrease in using open_sync.  Just to double check, am
> I correct in understanding only open_sync uses O_DIRECT?


> fdatasync
> 5462 notpm
> open_sync
> 4860 notpm

Right now open_sync is our last choice, which seems to still be valid
for Linux, at least.

  Bruce Momjian                        |               |  (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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