Re: [HACKERS] win32 performance - fsync question

Tom Lane <[email protected]> Thu, 17 Mar 2005 13:41:00 -0500
Newsgroups gmane.comp.db.postgresql.devel.win32,gmane.comp.db.postgresql.devel.general
Message-ID <[email protected]>
Bruce Momjian <[email protected]> writes:
> However, I do prefer this patch and let Win32 have the same write cache
> issues as Unix, for consistency.

I agree that the open flag is more nearly O_DSYNC than O_SYNC.

ISTM Windows' idea of fsync is quite different from Unix's and therefore
we should name the wal_sync_method that invokes it something different
than fsync.  "write_through" or some such?  We already have precedent
that not all wal_sync_method values are available on all platforms.

I'm not taking a position on which the default should be ...

			regards, tom lane

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