Christian,
Are you using an ODBC driver or just the unified-ODBC functions?
If a driver, then I suggest changing vendors - that performance is in no way
representative of ODBC in general.
In addition, to improve performance even more when using similar queries,
first use odbc_prepare to prepare a parameter-bound query and then use
odbc_execute to create the result set for specific parameter values.
You may wish to try our Multi-Tier drivers at http://www.openlinksw.com.
Multi-Tier UDA is exceptionally fast and secure, and downloads with a free,
non-expiring 2 user license.
In addition, free support is available at
http://www.openlinksw.com/support/suppindx.htm
Please let me know if you require assistance.
Best regards,
Andrew Hill
Director of Technology Evangelism
OpenLink Software http://www.openlinksw.com
Universal Data Access Data Integration Technology Providers
-Original Message-
From: news.php.net [mailto:[EMAIL PROTECTED]]
Sent: Monday, July 09, 2001 5:59 PM
To: [EMAIL PROTECTED]
Subject: [PHP-DB] IBM DB2 on Linux with PHP is very slow
Hi,
does someone has a DB2 UDB from IBM working with
PHP in a production envirement ? How is the performance?
For a relaunch of our existing production system running
on IBM DB2 on serveral IBM RS/6000 servers we tested
the performance of connecting PHP to this database.
And what can I say: It's very slow. For example:
A simple SELECT Query giving 100 records as result
takes about 6 until 10 seconds(!!!) when using PHP.
In detail: Connecting to Database lasts about 0.01 - 0.05 seconds (so, 10
ms - 50 ms),
sending the query (odbc_exec... ) lasts about the same time.
Then the bottleck: reading each record with odbc_fetch_into lasts
between 0.02 till sometimes 2 (two seconds!!!).
Now maybe you guess it's a problem of the DB2? We tested
the same query on the same server with a simple java-servlet with
jdbc, and the whole thing (connecting, query, and getting all records)
lasts about 0.09 till 0.2 seonds
So PHP is almost 300% till 500% slower!! I searched all
newsgroups and I found some people that has/had the same
problems.
We couldn't solve that problem by removing the TCP/IP
Problem of DB2 (setting some value ...mgnr = 1, i don't
remember it's name :-))).
No our CEO says, we should code the application in JAVA,
but that seems a very poor solution for us. So my question:
Does anybody had similar problems and solved it? Or is
anybody willing to help us? Maybe we can find some other
companies/people that also want to connect to DB2 with
a good performance, and we could improve the DB2 functions
of PHP or writing our own??
Or whats with other databases: are there similar problems
with Oracle??? Oralce would be a great idea, but we
spent some huge amount on the db2 so maybe it's
no good idea to put the db2 into the trashcan and buy
oracle for thousands of dollars. What's with Postgres? Our
problem is that we must store 10 million records a month,
and the database shouldn't have a problem with this.
Thank you for reading this, and maybe someone
can help,
Kind regards,
Christian Szardenings
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