in my nginx, compiled with my modules, i see that under every day usage (its on a web site , i cannot reproduce this in my lab) the memory usage of nginx grows all the time, it has many open connections (but the total number of connections is high but stays roughly the same over time) and aftert a week or so it consumes about 7GB of ram so i have to reload its processes (8 cores = 8 nginx workers).

can somebody help me on how to debug this ? which tools you use ? valgrind did not help, even after applying the patches to nginx core for debugging with it.