Re: [HACKERS] Update on my 6.4.2 progress - Mailing list pgsql-hackers

From Wayne Piekarski
Subject Re: [HACKERS] Update on my 6.4.2 progress
Date
Msg-id 199906210911.SAA29246@helpdesk.senet.com.au
Whole thread Raw
In response to Re: [HACKERS] Update on my 6.4.2 progress  (Wayne Piekarski <wayne@senet.com.au>)
List pgsql-hackers
> > > I guess my next question is, can i comment out the fsync call?
> > 
> > if you ar confident in your os and hardware, you can 
> > pass the -F flag to backend and no fsyncs are done.
> > 
> > (add -o '-F' to postmaster startup line)
> > 
> > I think it is in some faq too.
> 
> I already have the -o -F switch in the startup file (which I believe is
> working) but I'm under the impression from what I read that there are two
> fsync's - one you can switch off, and one which is fixed into the code
> and possibly can't be removed?

Eeeep! When I wrote the above, I was mistaken. My config file did not have
-o -F, which was why the fsync's were occuring. Sorry for messing you
around here .... 

What I was concerned about was the lack of caching and thrashing, but I
guess I can solve that with no fsync.

thanks,
Wayne

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Wayne Piekarski                               Tel:     (08) 8221 5221
Research & Development Manager                Fax:     (08) 8221 5220
SE Network Access Pty Ltd                     Mob:     0407 395 889
222 Grote Street                              Email:   wayne@senet.com.au
Adelaide SA 5000                              WWW:     http://www.senet.com.au


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