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? Or is anybody facing similar issues? Best regards Dirk
