Re: sync() - Mailing list pgsql-hackers

From Tatsuo Ishii
Subject Re: sync()
Date
Msg-id 20030108.155152.70220703.t-ishii@sra.co.jp
Whole thread Raw
In response to Re: sync()  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: sync()  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
> > Are you saying that fsync() might not wait untill the IO completes?
> 
> No, I said that sync() might not.  Read the man pages.  HPUX's man
> page for sync(2) says
> 
>      sync() causes all information in memory that should be on disk to be
>      written out.
>      ...
>      The writing, although scheduled, is not necessarily complete upon
>      return from sync.

I'm just wondering why we do not use fsync() to flush data/index
pages.
--
Tatsuo Ishii


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