What have you done to investigate memory leaks? What external connectors are you using, like MySQL or LDAP?
2009/4/27 Gerhard Schmidt <esta...@ze.tum.de>: > HI, > > I've encounters a performance Problem with Zope. Some requests take very > long time to process while others are served very fast. All request go for > the URL. The time for the delayed Requests grows with the memory size of > the Zope Process. It's direct proportional. > > I have generated a chart showing the request times and memory size of the > Zope Process. The chart can be found at http://etustar.ze.tum.de/frontend.jpg > > Our watchdog system restarts the Zope Process when it reaches 7.3 Gig > Memory. The physical memory of the server is 16 Gig and its only used for > the zope Server. There are at least 7 Gig Memory free. > > As you can see most of the requests are delivered within 2 seconds but some > take up to 12 seconds. The Requests monitored are the request of our > watchdog system. These requests are send approximately every 20 sec. > > When I set the restart memory limit higher the request time of the delayed > request continues to grows proportionally. > > This server is part of a pool of 19 Servers. All are connected to one ZEO > server. All show the same effect. > > We observe the same effect with regular requests. Some are served at normal > speed but some requests are delayed. > > Any idea what causes this effect and how to fix it. > > Greetings > Gerhard Schmidt > -- > ------------------------------------------------- > Gerhard Schmidt | E-Mail: schm...@ze.tum.de > TU-München | > WWW & Online Services | > Tel: 089/289-25270 | > Fax: 089/289-25257 | PGP-Publickey auf Anfrage > > > > _______________________________________________ > Zope maillist - z...@zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > > -- Peter Bengtsson, work www.fry-it.com home www.peterbe.com hobby www.issuetrackerproduct.com _______________________________________________ Zope maillist - Zope@zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )