On Fri, Jun 01, 2012 at 04:36:17PM +0800, xingxing gao wrote: > hi,rjones: > i am using libvirt and qemu-kvm on rhel,in these days i need to > monitor the vm's performance on my computer,and i've found the > wonderful tool---collectd and the lovely plugin for libvirt,but i > found that the libvirt plugin seems didnot collect the memory info of > the vm,so i ask you for help,thanks!!!^^ The libvirt collectd plugin predates support for memory statistics. Therefore it would need to be extended to add this feature. Patches for this best sent to the collectd project. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines.  Supports shell scripting, bindings from many languages.  http://libguestfs.org