-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

To whom it may concern,

aelgamal , wrote:
> The above scenario resulted in very poor scalability during the stress
> testing. When the average response time for 1 thread was x msec, the average
> response time for 2 threads was 2x and 3 threads was 3x and so on.

How did you configure your data source?

> When I created a pool of connections (15 connections) in the Servlet and
> kept the connections of this pool alive the scalability improved. The
> average response time for a 150 concurrent threads was slightly higher than
> the average response time for 1 thread.

How did you configure your data source, here?

> Please advice why the poor performance when I used tomcat data source.

Tomcat can be configured to use a data source with a connection pool
size of 1. It's silly, but possible. If this is what you did, then you
simply weren't pooling connections and you should expect that pooling
would certainly improve performance.

If you're interested in playing with connection pools, help out Filip by
using his new Tomcat connection pool he's testing. I'm sure he'd love
the feedback.

- -chris

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkkdqfwACgkQ9CaO5/Lv0PBXdACgjq/4JJZKJ+DgNn64szioNSZl
mvgAoMN8Qb9oPjizMzzeXyGJQn6IPQmO
=7ATP
-----END PGP SIGNATURE-----

---------------------------------------------------------------------
To start a new topic, e-mail: users@tomcat.apache.org
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]

Reply via email to