Re: Re[2]: Allowing WAL fsync to be done via O_SYNC

> > Could anyone consider fork a syncer process to sync data to disk ?
> > build a shared sync queue, when a daemon process want to do sync after
> > write() is called, just put a sync request to the queue. this can release
> > process from blocked on writing as soon as possible. multipile sync
> > request for one file can be merged when the request is been inserting to
> > the queue.
> 
> I suggested this about a year ago. :)
> 
> The problem is that you need that process to potentially open and close
> many files over and over.
> 
> I still think it's somewhat of a good idea.

I like the idea too, but people want the transaction to return COMMIT
only after data has been fsync'ed so I don't see a big win.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610) 853-3000 +  If your life is a hard drive,     |  830 Blythe Avenue +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026