[libvirt-users] CPU usage by libvirtd

Hi, I employed libvirt to monitor 50 domains in one node(host). my monitor calls libvirtd for every stats such as cpu, memory, disk every 10 sec. All my requests are made in one thread. And I found that the libvirtd may cost 30% or above cpu time. Is it normal in my case? I tried to reduce this cpu consumption and found some variable in libvirtd.conf and got a little confused by variables like max_clients, max_workers, max_requests. In my opinion, max_clients limits the number of virConnect created by app. max_workers limits the number of thread to handle requests from clients. Does that mean requests from one client may be handled in multi-thread way if max_workers is greater than max_workers? max_request limits the concurrent RPC calls according the comments in libvirtd.conf. I wonder if it can improve the response time if I give a higher value in the case that all my requests are made in one thread? I've tried several different configurations and they didn't reduce the cpu usage effectively.