Re: slowing down too fast - why ?

I've even launched the backend with "-F" and removed BEGIN/COMMIT and 
LOCK TABLE and FOR UPDATE, but I still get slow response.
only when count(*) from file is 16000, I get about 2-3 rows / second on 
average. When count(*) from file was 100, I get about 20-30 rows / second.
 Help !
    Thanx,
        John

On Sun, 11 Aug 2002 h012@ied.com wrote:

> 
>  and I forgot to mention that my stats are available at:
> http://John.Vicherek.com/slow/times.query.txt
> 
>   John
> 
> On Sun, 11 Aug 2002 h012@ied.com wrote:
> 
> > 
> >  
> >  Hi,
> > 
> >   I must be doing something silly. I have a 900MHz, 384MB RAM, and
> > this thing is slow.  (Postgresql-7.1.2).
> > 
> >  And growing exponencially slower.
> > 
> > SQL: http://John.Vicherek.com/slow/schema.sql (save to /tmp/schema.sql)
> > am.dat: http://John.Vicherek.com/slow/am.dat   (save to /tmp/am.dat )
> > perl: http://John.Vicherek.com/slow/rpm2filerian.pl (save to /tmp/rpm2filerian.pl)
> > 
> > when I do :
> > 
> > createdb filerian
> > psql -d filerian -f /tmp/schema.sql
> > echo 'create table times (the_moment datetime, the_number int4);' | psql -d filerian
> > cd /tmp/mdk/8.2/i586/Mandrake/RPMS # lots of RPMs here
> > while sleep 10 ; do echo 'insert into times values( now(), count(file.id));' | psql -d filerian ; done 2>&1
>/dev/null &
 
> > for i in *.rpm ; do echo $i ; perl /tmp/rpm2filerian.pl 0 $i ; done
> > 
> > 
> >  Why are the times so bad ? Why is it slowing so fast ?
> > 
> > Am I missing any useful indeces ?
> > 
> >  This shows the slowage:
> > select the_number,min(the_moment) from times group by the_number;
> > 
> > PS: if you look in the perl code for "exec", immediatelly above will you
> > find the query it is doing.
> > 
> >    Thanx,
> > 
> >       John
> > 
> > 
> > 
> > 
> > 
> 
> 

-- 
-- Gospel of Jesus is the saving power of God for all who believe --              ## To some, nothing is impossible. ##
                  http://Honza.Vicherek.com/