Bruce Momjian <> wrote:

> I looked this over and I am unsure what this does for us that isn't
> already accomplished using the wal_sync_method settings.  See xlog.c for
> a description of O_DIRECT and when it is used.

I proposed it to supplement the cache control. There are some OSes that
supports posix_fadvise but not O_DIRECT, for example, NetBSD 4.0

ITAGAKI Takahiro
NTT Cyber Space Laboratories

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