12:26 a.m.
cpu-accts command shows cpu accounting information of a domain.
[root@bluextal ~]# virsh cpu-accts GuestX1
Total:
cpu_time 165.4
CPU0:
cpu_time 0.0
CPU1:
cpu_time 0.0
CPU2:
cpu_time 0.0
CPU3:
cpu_time 0.0
CPU4:
cpu_time 78.9
CPU5:
cpu_time 0.0
CPU6:
cpu_time 0.0
CPU7:
cpu_time 86.5
This guest using 165secs of cpu in total. CPU4/7 is used mainly.
---
tools/virsh.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
tools/virsh.pod | 5 ++
2 files changed, 121 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index 74655c2..9746500 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -5106,6 +5106,121 @@ cmdSetvcpus(vshControl *ctl, const vshCmd *cmd)
}
/*
+ * "cputime" command
+ */
+static const vshCmdInfo info_cpu_accts[] = {
+ {"help", N_("show domain cpu accounting information")},
+ {"desc", N_("Returns information about the domain's cpu
accounting")},
+ {NULL, NULL},
+};
+
+static const vshCmdOptDef opts_cpu_accts[] = {
+ {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or
uuid")},
+ {NULL, 0, 0, NULL},
+};
+
+static bool
+cmdCPUAccts(vshControl *ctl, const vshCmd *cmd)
+{
+ virDomainPtr dom;
+ virTypedParameterPtr params = NULL;
+ bool ret = true;
+ int i, j, pos, cpu, nparams;
+ int max_id;
+
+ if (!vshConnectionUsability(ctl, ctl->conn))
+ return false;
+
+ if (!(dom = vshCommandOptDomain(ctl, cmd, NULL)))
+ return false;
+
+ /* get max cpu id on the node */
+ max_id = virDomainGetCPUStats(dom, NULL, 0, 0, 0, 0);
+ if (max_id < 0) {
+ vshPrint(ctl, "max id %d\n", max_id);
+ goto cleanup;
+ }
+ /* get supported num of parameter for total statistics */
+ nparams = virDomainGetCPUStats(dom, NULL, 0, -1, 1, 0);
+ if (nparams < 0)
+ goto cleanup;
+
+ if (VIR_ALLOC_N(params, nparams)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+ /* passing start_cpu == -1 gives us domain's total status */
+ nparams = virDomainGetCPUStats(dom, params, nparams, -1, 1, 0);
+ if (nparams < 0)
+ goto cleanup;
+
+ vshPrint(ctl, "Total:\n");
+ for (i = 0; i < nparams; i++) {
+ vshPrint(ctl, "\t%-15s ", params[i].field);
+ switch (params[i].type) {
+ case VIR_TYPED_PARAM_ULLONG:
+ /* Now all UULONG param is used for time accounting in ns */
+ vshPrint(ctl, "%.1lf\n",
+ params[i].value.ul / 1000000000.0);
+ break;
+ default:
+ vshError(ctl, "%s", _("API mismatch?"));
+ goto cleanup;
+ }
+ }
+ VIR_FREE(params);
+ /* get percpu information */
+ nparams = virDomainGetCPUStats(dom, NULL, 0, -1, 1, 0);
+ if (nparams < 0)
+ goto cleanup;
+
+ cpu = 0;
+ while (cpu <= max_id) {
+ int ncpus = 128;
+
+ if (cpu + ncpus - 1 > max_id) /* id starts from 0. */
+ ncpus = max_id + 1 - cpu;
+
+ if (VIR_ALLOC_N(params, nparams * ncpus)) {
+ virReportOOMError();
+ goto cleanup;
+ }
+
+ if (virDomainGetCPUStats(dom, params, nparams, cpu, ncpus, 0) < 0)
+ goto cleanup;
+
+ for (i = 0; i < ncpus; i++) {
+ if (params[i * nparams].type == 0)
+ continue;
+ vshPrint(ctl, "CPU%d:\n", cpu + i);
+
+ for (j = 0; j < nparams; j++) {
+ pos = i * nparams + j;
+ if (params[pos].type == 0)
+ continue;
+ vshPrint(ctl, "\t%-15s ", params[pos].field);
+ switch(params[j].type) {
+ case VIR_TYPED_PARAM_ULLONG:
+ vshPrint(ctl, "%.1lf\n",
+ params[pos].value.ul / 1000000000.0);
+ break;
+ default:
+ vshError(ctl, "%s", _("API mismatch?"));
+ goto cleanup;
+ }
+ }
+ }
+ cpu += ncpus;
+ /* Note: If we handle string type, it should be freed */
+ VIR_FREE(params);
+ }
+cleanup:
+ VIR_FREE(params);
+ virDomainFree(dom);
+ return ret;
+}
+
+/*
* "inject-nmi" command
*/
static const vshCmdInfo info_inject_nmi[] = {
@@ -16014,6 +16129,7 @@ static const vshCmdDef domManagementCmds[] = {
#endif
{"cpu-baseline", cmdCPUBaseline, opts_cpu_baseline, info_cpu_baseline, 0},
{"cpu-compare", cmdCPUCompare, opts_cpu_compare, info_cpu_compare, 0},
+ {"cpu-accts", cmdCPUAccts, opts_cpu_accts, info_cpu_accts, 0},
{"create", cmdCreate, opts_create, info_create, 0},
{"define", cmdDefine, opts_define, info_define, 0},
{"destroy", cmdDestroy, opts_destroy, info_destroy, 0},
diff --git a/tools/virsh.pod b/tools/virsh.pod
index 8599f66..df65935 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -721,6 +721,11 @@ Provide the maximum number of virtual CPUs supported for a guest VM
on
this connection. If provided, the I<type> parameter must be a valid
type attribute for the <domain> element of XML.
+=item B<cpu-accts> I<domain>
+
+Provide cpu accounting information of a domain. The domain should
+be running.
+
=item B<migrate> [I<--live>] [I<--direct>] [I<--p2p>
[I<--tunnelled>]]
[I<--persistent>] [I<--undefinesource>] [I<--suspend>]
[I<--copy-storage-all>]
[I<--copy-storage-inc>] [I<--change-protection>] [I<--verbose>]
--
1.7.4.1