Re: [Libvir] Proposal: Block device and network stats

wr_bytes :-)

> int64_t errs; // In Xen this returns the mysterious 'oo_req'. > }; > typedef struct _virDomainBlockStats *virDomainBlockStatsPtr; then yes that's okay. Those interfaces are what I suggested as the low level ones, I guess they are needed even if tehy don't really scale as the number of domain and more importantly the number of node increases. But it allows to build higher level monitoring implementations. My current POV based on previous monitoring work is that if you are monitoring up to a few dozen machines then aggregating the data to the monitoring application is fine, where you can then apply the user based policy to raise the events (and subsequent rules or UI alerts), but if you want to scale you have to export the monitoring down to each node, and push the policies there, just gathering the events/alerts at the monitoring application or console level. In any case having the low level API is needed so something like those entry points are needed.