| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Philip Warner <pjw(at)rhyme(dot)com(dot)au> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: CommitDelay performance improvement |
| Date: | 2001-02-24 04:03:40 |
| Message-ID: | 200102240403.XAA17478@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
> At 21:31 23/02/01 -0500, Bruce Momjian wrote:
> >Now, I know many will complain that we are returning commit while not
> >having the stuff on the platter.
>
> You're definitely right there.
>
> >Maybe they do, but it seems
> >the benefit of grouped fsyncs() is large enough that many will say they
> >would rather have this option.
>
> I'd prefer to wait for a lock manager that supports timeouts and contention
> notification.
I understand, and if that was going to fix the problem completely, but
it isn't. It is just going to allow us more flexibility at guessing who
may be about to commit.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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