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Yes they do. Some of the app servers (Jetty for sure) also manage connections the same way i manages jobs (i.e., requests that are waiting for backend I/O are shuffled off to a separate pool and the sockets are reused for other requests). This allows concurrent requests to scale beyond the number of TCP/IP ports available.
-----Original Message-----
From: web400-bounces@xxxxxxxxxxxx [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Nathan Andelin
Sent: Thursday, October 07, 2010 12:44 PM
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] Which scales better? J2EE, PHP, or CGIDEV2?
From: Aaron Bartell
I would be curious to know how much CPU time is required to
create a new J2EE thread ...
I answered hastily the last time. Instantiating a Thread in Java is trivial,
but depending on what else may be instantiated from within a Thread, it could
get expensive. I don't know what might get instantiated from within JEE server
threads. But it would make a lot more sense to reuse a pool of threads for
incoming browser requests, which is what app servers do, according to Thor. So
the question is probably moot.
-Nathan
midrange.com
