| From: | Hans-Jürgen Schönig <postgres(at)cybertec(dot)at> |
|---|---|
| To: | pgsql-hackers <pgsql-hackers(at)postgreSQL(dot)org> |
| Subject: | Script to compute randon page cost |
| Date: | 2002-09-09 08:06:19 |
| Message-ID: | 3D7C567B.20006@cybertec.at |
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| Lists: | pgsql-hackers |
Linux RedHat 7.3 (ext3, kernel 2.4.18-3)
512MB Ram
AMD Athlon 500
IBM 120GB IDE
[hs(at)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(at)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
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