AFAIK, such a beast does not exist where you can stop a transaction from pressing a browsers stop button. Web is stateless, so a stop button on a browser cannot be connected to the servers understanding of finish the request or don't. Zope threading process is a mysterious thing to me as well, but keep in mind that ITS threading is separate from SQL threading, so the speed I'm sure depends on how your system is setup. I personally prefer to use all SQL with Zope, and just put up with slower creation. The SQL calls are at least fully threaded, seeming to take much of the work of Zope allowing for other requests. But if tis test that slows down Zope to a crawl (on my dual-proc linux box its very tolerable) makes you uncomfortable, then check out ZEO... I'm doing the same now on Chris McD's advice. Cheers, Paul Zwarts -----Original Message----- From: zope-admin@zope.org [mailto:zope-admin@zope.org] On Behalf Of Oliver Erlewein Sent: Friday, October 26, 2001 9:43 AM To: zope@zope.org Subject: [Zope] Re: Threading, dtml and performance?! Well I've tested your script with an old backup of Zope 2.3.2 on an Win NT SP 5 machiene. There are no problems. The script runs in one window and in the other I can surf the management screen. My Solaris can't do that. On Solaris and on NT I could see your second problem. When I press cancel on the Browser the process/thread doesn't stop. Thats really a problem. I started your script twice and the machiene (NT) is nearly not usable anymore. But thats better than Solaris - there I can't start the process twice! For me I've prooven that there is something VERY WEIRD with the Solaris Zope. OK it might not be Zope but Python. As for me I need an answer / solution desperately! Any ideas anybody? My primary guess is, that Solaris doesn't relese the threads after using them. I've tried a threaded Python script on my Solaris machiene and that had no problems. But I must confess I have no clue on how Zope Threading works. Therefore my test doesn't proove anything really. By the way...it also shows how fast Zope really is because if I run "singlethreaded" and Zope can still serve a few thousand requests a day thats really not bad. Oliver Erlewein -- GMX - Die Kommunikationsplattform im Internet. http://www.gmx.net _______________________________________________ Zope maillist - Zope@zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )