There are ca. 400 hosts and 9500 services. The most strange thing is that the system had no problems before the upgrade with the 2.0.0p16 version. The “cmc” process usually does not consume much cpu resources, a similar system with ca. 800 hosts (ca. 30.000 services), consumes under 5% (but the server has 4 cores).
OK we will try to add 2 cores.