| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tatsuo Ishii <t-ishii(at)sra(dot)co(dot)jp> |
| Cc: | tgl(at)sss(dot)pgh(dot)pa(dot)us, peter(dot)schmidt(at)prismedia(dot)com, pgsql-hackers(at)postgresql(dot)org, pgsql-admin(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] Re: v7.1b4 bad performance |
| Date: | 2001-02-19 16:50:02 |
| Message-ID: | 200102191650.LAA03334@candle.pha.pa.us |
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| Thread: | |
| Lists: | pgsql-admin pgsql-hackers |
I did not realize how much WAL improved performance when using fsync.
> > "Schmidt, Peter" <peter(dot)schmidt(at)prismedia(dot)com> writes:
> > > So, is it OK to use commit_delay=0?
> >
> > Certainly. In fact, I think that's about to become the default ;-)
>
> I agree with Tom. I did some benchmarking tests using pgbench for a
> computer magazine in Japan. I got a almost equal or better result for
> 7.1 than 7.0.3 if commit_delay=0. See included png file.
> --
> Tatsuo Ishii
[ Attachment, skipping... ]
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Bruce Momjian | http://candle.pha.pa.us
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