1 Commits

Author	SHA1	Message	Date
Michal Privoznik	fa21f3d927	examples: Introduce nodestats example ... So, this is an exercise to show libvirt capabilities. Firstly, for each host NUMA nodes some statistics are printed out, i.e. total memory and free memory. Then, for each running domain, that has memory strictly bound to certain host nodes, a small statistics of how much memory it takes is printed out too. For instance: # ./examples/nodestats.py NUMA stats NUMA nodes: 0 1 2 3 MemTotal: 3950 3967 3937 3943 MemFree: 66 56 42 41 Domain 'fedora': Overall memory: 1536 MiB Domain 'fedora22': Overall memory: 2048 MiB Domain 'fedora21': Overall memory: 1024 MiB nodes 0-1 Node 0: 1024 MiB nodes 0-1 Domain 'gentoo': Overall memory: 4096 MiB nodes 0-3 Node 0: 1024 MiB nodes 0 Node 1: 1024 MiB nodes 1 Node 2: 1024 MiB nodes 2 Node 3: 1024 MiB nodes 3 We can see 4 host NUMA nodes, all of them having roughly 4GB of RAM. Yeah, all of them has nearly all the memory consumed. Then, there are four domains running. For instance, domain 'fedora' has 1.5GB memory which is not pinned onto any specific host NUMA node. Domain 'gentoo' on the other hand has 4GB memory and has 4 NUMA nodes which are pinned 1:1 to host nodes. Signed-off-by: Michal Privoznik <mprivozn@redhat.com>	2015-07-17 11:42:44 +02:00