| From: | "Ed L(dot)" <pgsql(at)bluepolka(dot)net> |
|---|---|
| To: | Michael Fuhr <mike(at)fuhr(dot)org> |
| Cc: | pgsql-general(at)postgresql(dot)org |
| Subject: | Re: insert performance riddle |
| Date: | 2005-08-12 23:37:22 |
| Message-ID: | 200508121737.22251.pgsql@bluepolka.net |
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| Thread: | |
| Lists: | pgsql-general |
On Friday August 12 2005 5:27 pm, Michael Fuhr wrote:
> On Fri, Aug 12, 2005 at 05:20:49PM -0600, Ed L. wrote:
> > Well, just as I thought I had this one pinned, my test
> > results have become wildly inconsistent, eroding all
> > confidence in my prior conclusions about DBI slowness, etc.
> > I've seen at least 1000+ QPS performance via DBI/DBD::Pg,
> > Pg, and C/libpq. I'm now investigating the possibility of
> > simple old intermittent I/O congestion...
>
> How consistent were the results before? I got the impression
> that you saw consistently bad performance with DBD::Pg when
> other methods performed well.
Results were very consistent until this morning. Now dbi/dbd::pg
are intermittently showing performance 1-2 orders of magnitude
faster. :/
Ed
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