Xen’s Hypervisor does not have an easy collection of performance counters. The management machine – “Domain-0″ is actually a privileged virtual machine, and thus – get its own small share of CPUs and RAM. Collecting performance information on it will lead to collecting performance information for a single VM, and not the whole bunch. “xentop” allows collection of information, however, combining this with Cacti , or any other SNMP-based collection tool is a bit tricky. A great solution is provided by Ian P. Christian in his blog post about Xen montoring and there is a script that collects the performance details.


Leave a Reply

Your email address will not be published. Required fields are marked *

You May Also Like
Read More

Netapp : Pocket Survival Guide

The url http://www.cs.fiu.edu/~tho01/psg/netapp.html has good information on netapp command set and its usage. A quick reference guide for…
Read More

Load Average

A very good article on Unix Load averages and how it is calculated [ http://www.linuxjournal.com/article/9001 ] . Worth…
Read More

Netapp VIFs loadbalancing

NetApp loadbalancing algorithm for determining ethernet load balancing (vifs) differs from Cisco, so it’s normal to see unbalanced…