I bet you can't use Valgrind on Production C++ Server though. You are also limited to the platforms Valgrind runs on. There have been plenty of times I used Xep

I bet you can't use Valgrind on Production C++ Server though. You are also limited to the platforms Valgrind runs on. There have been plenty of times I used Xeprof (HPUX) on Java server to profile CPU usage, GC logging parsed by JMeter, on demand heap dumps (MAT) - all in Production to successfully resolve issues. (Browsing the heap dump will tell you exactly where your memory is - duplicated String Buffers, leaked objects etc.) The point is JVM tooling has matured enough that you have plenty of choices - you'll find something that works well even for production uses.