| From: | Mike Nolan <nolan(at)gw(dot)tssi(dot)com> |
|---|---|
| To: | tgl(at)sss(dot)pgh(dot)pa(dot)us (Tom Lane) |
| Cc: | scrappy(at)postgresql(dot)org (Marc G(dot) Fournier), pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Sustained inserts per sec ... ? |
| Date: | 2005-04-01 22:36:47 |
| Message-ID: | 200504012236.j31MamDD009302@gw.tssi.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
> > Well, I just did an insert of 27,500 records with 9 fields, averaging
> > around 118 bytes per record, each insert statement coming from a separate
> > SQL statement fed to psql, and it took a bit over 4 minutes, or about
> > 106 inserts per second.
>
> Is that with a separate transaction for each insert command? I can get
> significantly higher rates on my devel machine if the inserts are
> bundled into transactions of reasonable length.
That's with autocommit on. If I do it as a single transaction block,
it takes about 6.5 seconds, which is about 4200 transactions/second.
--
Mike Nolan
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Michael Fuhr | 2005-04-01 23:24:01 | Re: date - range |
| Previous Message | Tom Lane | 2005-04-01 22:03:53 | Re: Sustained inserts per sec ... ? |