Frequent heap dumps and system load average

Dear Experts,

Performance of our development has gone worst. There has been frequent Heap Dumps and Paging, also System Load Average '/Kernel/SAPJVM/SystemProblemReporting/System Load Average' is over 133%.

We are using NW731 with EP core.

JVM parameters arememory are according to SAP recommendations

-Xms4096m

-Xmx4096m

-XX:NewSize=1365m

-XX:MaxNewSize=1365m

-XX:PermSize=1024m

-XX:MaxPermSize=1024m

-XX:NewRatio=6

SCS, Application and Database are on single host.

Number of nodes=2.

Physical memory size is 15GB

Appreciate your assistance in analyzing and fixing the performance issue.

Thanks,

Kumar