On Mon, 2002-09-09 at 01:16, Hans-Jürgen Schönig wrote:
> Christopher Kings-Lynne wrote:
>
> >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
> >
> >
> Some time ago Joe Conway suggest a tool bas
"Christopher Kings-Lynne" <[EMAIL PROTECTED]> writes:
> Assuming it's giving out correct information, there seems to be a lot of
> evidence for dropping the default random_page_cost to 1...
The fact that a lot of people are reporting numbers below 1 is
sufficient evidence that the script is broke
Christopher Kings-Lynne wrote:
>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
>
>
Some time ago Joe Conway suggest a tool based on a genetic algorithm
which tries to find the best parameter settings
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 si
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
