Hi Leo, thanks for the advise. What I see for the moment is that the "Committed virtual memory" climbs to 881M for one of our programs for exemple (Current heap size: 44M, Maximum heap size: 7G) if I don't limit the memory. If I adjust the memory limits with -Xmx4M for this program, I get a better result (Committed virtual memory: 86M, Current heap size: 3M, Maximum heap size: 3.5M). I tried to analyze the dump but I lack the knowledge to fully understand it at this time. I see well by experimentation that I gain there by limiting the memory. But I don't know how to determine the limits to assign to avoid a possible Out Of Memory in production except by experimentation.
Regards,
Pierre