How do I decrease ram usage for JasperReports-server-cp-5.6.0 in centos 7?
There are many things you can do to help increase performance. You can set the JVM options to be lower (although this can cause crashes). More information can be found here:
You can also do other things like turn off logging to minorly increase performance. JRS 5.6.0 is a pretty old version of JRS, so it should not use a whole lot to begin with. I believe it is around 2G to begin with.