Re: Script to compute randon page cost

Assuming it's giving out correct information, there seems to be a lot of
evidence for dropping the default random_page_cost to 1...

Chris

> -----Original Message-----
> From: pgsql-hackers-owner@postgresql.org
> [mailto:pgsql-hackers-owner@postgresql.org]On Behalf Of Hans-Jürgen
> Schönig
> Sent: Monday, 9 September 2002 4:06 PM
> To: pgsql-hackers
> Subject: [HACKERS] Script to compute randon page cost
>
>
> Linux RedHat 7.3 (ext3, kernel 2.4.18-3)
> 512MB Ram
> AMD Athlon 500
> IBM 120GB IDE
>
>
> [hs@backup hs]$ ./randcost.sh /data/db/
> Collecting sizing information ...
> Running random access timing test ...
> Running sequential access timing test ...
>
> random_page_cost = 0.901961
>
>
>
> [hs@backup hs]$ ./randcost.sh /data/db/
> Collecting sizing information ...
> Running random access timing test ...
> Running sequential access timing test ...
>
> random_page_cost = 0.901961
>
>
> Great script - it should be in contrib.
>
>     Hans
>
>
>
> --
> *Cybertec Geschwinde u Schoenig*
> Ludo-Hartmannplatz 1/14, A-1160 Vienna, Austria
> Tel: +43/1/913 68 09; +43/664/233 90 75
> www.postgresql.at <http://www.postgresql.at>, cluster.postgresql.at
> <http://cluster.postgresql.at>, www.cybertec.at
> <http://www.cybertec.at>, kernel.cybertec.at <http://kernel.cybertec.at>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>