Horton

Re: sync()

Tatsuo Ishii <t-ishii@sra.co.jp>

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From: Tatsuo Ishii <t-ishii@sra.co.jp>
To: tgl@sss.pgh.pa.us
Cc: pgman@candle.pha.pa.us, pgsql-hackers@postgresql.org
Date: 2003-01-08T06:51:52Z
Lists: 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