On 06/11/2015 16:15, Datta, Abir - Ealing wrote: > Could you please suggest something in TOMCAT 8 which might be leading to the > problem mentioned below.
Define "increased significantly". A simple test case that demonstrates the issue would also help. Mark > > Thanks, > Abir > ________________________________________ > From: Datta, Abir - Ealing <ada...@wiley.com> > Sent: 05 November 2015 17:17 > To: Tomcat Users List > Subject: RE: Classloading performance problems, Tomcat 8 upgrade from tomcat 6 > > Hi Mark, > > Thanks for the response. The setting is already enabled. We have upgraded to > tomcat version 8.0.26 > > <Host name="localhost" appBase="webapps" > unpackWARs="true" autoDeploy="true"> > > Thanks, > Abir > > ________________________________________ > From: Mark Thomas <ma...@apache.org> > Sent: 05 November 2015 17:07 > To: Tomcat Users List > Subject: Re: Classloading performance problems, Tomcat 8 upgrade from tomcat 6 > > On 05/11/2015 16:58, Datta, Abir - Ealing wrote: >> Hi, >> >> >> Background >> >> Application server has been upgraded from tomcat 6 to tomcat 8. We are >> experiencingperformance issues in transactions which involve XML processing >> using DOM4J and xerces api. The application uses dom4j-1.6.1.jar and >> xercesImpl-2.10.0.jar. There has been no change in the application which was >> deployed in tomcat 6 to the application deployed in tomcat 8. >> >> Problem >> >> We use Dynatrace to monitor our application. We have seen that in tomcat 8, >> the time taken for classloading api has increased significantly, leading to >> performance degradation. This tomcat 8 classloading time and api breakdown >> leading to classloading<http://i.stack.imgur.com/zblrc.jpg> shows the time >> taken by the classloading api in Tomcat 8 and this shows what was happening >> in tomcat 6<http://i.stack.imgur.com/LOk5e.jpg>. >> >> From the above pics, we can see that Classloading is invoked from the xerces >> apis(Xml Processing in the pic), so the transactions using the xerces api >> have shown performance degradation. >> >> Please help in understanding why the classloading times have increased in >> tomcat 8 and how to get rid of this problem in tomcat8. > > Try enabling unpackWARs. > > Mark > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > ------------------------------------------------------------------------------------------------------------ > John Wiley & Sons Limited is a private limited company registered in England > with registered number 641132. > Registered office address: The Atrium, Southern Gate, Chichester, West > Sussex, United Kingdom. PO19 8SQ. > ------------------------------------------------------------------------------------------------------------ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
