search for: sflowtool

Hi, I am trying to create a report across all my KVM hypervisors using libvirt API and I need some assistance in figuring out the right API calls. My report will contain the total available memory, CPU, disk across all hypervisors, versus the amount used by the virtual machines. This report will help figure out if we are running low on hypervisor disk, CPU or memory and if we need to add more. I

...bvirt library on the hypervisor and sends hypervisor and VM metrics using the sFlow protocol to a central collector. You could use an sFlow analyzer like Ganglia to record and display the metrics. http://blog.sflow.com/2012/01/using-ganglia-to-monitor-virtual.html Alternatively, you could use the sflowtool to convert sFlow to text and write a Perl/Python/Awk... script to generate your report. http://blog.sflow.com/2011/12/sflowtool.html Are you also using Open vSwitch? I you are, the Host sFlow agent can configure sFlow monitoring to add statistics for each of the vNICs as well as packet flows betw...

Hello, Recently I''ve received some complaints that there is excessive but intermittent latency of network traffic to domUs on some of my servers. Upon investigation it seems that on some servers, indeed traffic is occasionally delayed by up to 140ms where something like 5ms RTT would be expected. The average RTT is not unusual; since this is only occasional packets it only affects the