On Mon, 30 May 2011 11:03:35 +0900 Minoru Usui <usui@mxm.nes.nec.co.jp> wrote:
On Mon, 30 May 2011 09:36:50 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
On Wed, 25 May 2011 15:01:29 +0900 Minoru Usui <usui@mxm.nes.nec.co.jp> wrote:
Hi,
This is v6 of virNodeGetCPUTimeParameters() API. (This time, I rename it to virNodeGetCPUStats()) It returns cpu utilization or cumulative cpu time of the node from /proc/stat since node boots up. This patch only supports linux host.
Can I make a question ?
What "CPU' means here ?
CPU usage statistics from the Guest OS's point of view ?
Do we get the information by asking an daemon or module on the guest to gather statistics on the guest ?
No. This API gets host cpu statistics, not guest.
It's just read statistics from /proc/stat of the host.
ok. I have a patch to get per-domain/per-cpu cpu usage statistics by using cpuacct cgroup. (for fixining #virt-top -1.) yours are per-conn, mine is per-domain. I'd like to remake my patch to use the same style as yours and to use the same macro/params. As... == int virDomainGetCPUStats (virDomainPtr dom, virCPUStatsPtr params, int *nparams, unsigned int flags); == I think "kernel" and "user", for linux. Thank you for your patch. Thanks, -Kame