linux user group brescia

giro visto che ho avuto una discussione a riguardo recentemente
con alcuni luggari...

ciao,
andrea

----- Forwarded message from Mario Weilguni <mweilguni a sime.com> -----

From: Mario Weilguni <mweilguni a sime.com>
Reply-To: mweilguni a sime.com
To: pgsql-hackers a postgresql.org
Subject: [HACKERS] MySQL vs. Postgres - congratulations to the postgres team
Date: Mon, 9 Apr 2001 20:26:54 +0200
X-Mailer: KMail [version 1.2]

DISCLAIMER: don't take this as MySQL flaming (it isn't) or personally, this 
are just my observations on an application, not a benchmark.

Today I tried a quite simple, mostly write database (HTTP logging). 
* Postgres peaked at 709 inserts/sec (committed after 3 seconds or 100 
inserts, whichever comes first)
* MySQL peaked at 735 inserts/sec (no transactions)

However, MySQL completly choked over when trying to query something usefull 
out of the database while the inserts are running (at full speed). Postgres 
worked like a charm. The only real advantage of mysql was a simple "select 
count(1) from logs", which mysql answered immidiatly,while postgres did a 
full table scan.

For querying the DB, postgres won, my queries ran about 12% faster in 
Postgres than MySQL.

Given the fact that the "one-user" case was MySQL's real advantage up to now, 
Postgres 7.1 will be an important milestone.

-- 
===================================================
 Mario Weilguni                               KPNQwest Austria GmbH
 Senior Engineer Web Solutions                         Nikolaiplatz 4
 tel: +43-316-813824                                8020 graz, austria
 fax: +43-316-813824-26                    http://www.kpnqwest.at
 e-mail: mario.weilguni a kpnqwest.com
===================================================

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