Hmmm. No performance loss with simple single jsp page. I will try to track it down some more. The application has database functionality, many xsl transformations, Solr search and so on. I will first reduce the functionality and hopefully find the bottleneck. Thanks so far. Dirk Am 17.01.2015 02:03 schrieb "Mark Thomas" <ma...@apache.org>:
> On 16/01/2015 16:01, Dirk Högemann wrote: > > Hello, > > > > I am trying to upgrade a JSP-based application, which is usually hosted > on > > Tomcat (currently 7.0.57) to Version 8.0.15. > > > > Unfortunately I am facing a massive performance degradation - only 40% of > > the performance of 7.0.56 is reached when running the exact same JMeter > > Test with Tomcat8. > > > > Relevant value here is: 24 page impressions per second on Tomcat 8.0.15. > > On Tomcat 7.0.56 it reaches up to 60 PI/s. > > > > A sampler captured with JVisual VM shows a hotspot on Class: > > > > org.apache.jasper.el.JasperELResolver.getValue -> 63,9 % of CPU self time > > > > Tomcat 7.0.57: 0,8 % > > > > Usage of Java8 or Java7 makes no difference. > > > > Any ideas to improve the performance? > > Not yet. > > > Or is anybody facing similar issues? > > Not that I recall. > > Can you simplify this to a single JSP (ideally as simple as possible) > that is significantly slower on 8.0.x compared to 7.0.x? With that, we > can take a look at what is going on. > > Mark > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
