ps aux|grep libvirt(libvirt-bin on ubuntu11.04)

edward@pituba:/var/log/xen$ ps aux|grep libvirt
root      1086  0.1  0.6 233916  6460 ?        Sl   17:20   0:00 /usr/sbin/libvirtd -d
nobody    1155  0.0  0.1  21640  1096 ?        S    17:20   0:00
dnsmasq --strict-order --bind-interfaces --pid-file=/var/run/libvirt/network/default.pid --conf-file= --except-interface lo --listen-address 192.168.122.1 --dhcp-range 192.168.122.2,192.168.122.254 --dhcp-lease-max=253 --dhcp-no-override