[libvirt] [PATCH 5/6] virNodeGetMemoryStats: Implement virsh support
virNodeGetMemoryStats: Implement virsh support
Add nodecpustats subcommand to virsh.
This subcommand prints below output.
[Linux]
# build/tools/virsh nodememstats
total : 8058876 kB
free : 5042384 kB
buffers : 832728 kB
cached : 776736 kB
Signed-off-by: Minoru Usui <usui(a)mxm.nes.nec.co.jp>
---
tools/virsh.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
tools/virsh.pod | 4 ++++
2 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index de49489..9e57b27 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -3490,6 +3490,56 @@ cmdNodeinfo(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
}
/*
+ * "nodememstats" command
+ */
+static const vshCmdInfo info_nodememstats[] = {
+ {"help", N_("Prints memory stats of the node.")},
+ {"desc", N_("Returns memory stats of the node.(KB)")},
+ {NULL, NULL}
+};
+
+static bool
+cmdNodememstats(vshControl * ctl, const vshCmd * cmd ATTRIBUTE_UNUSED)
+{
+ int nparams = 0;
+ unsigned int i = 0;
+ virMemoryStatsPtr params = NULL;
+ bool ret = false;
+
+ if (!vshConnectionUsability(ctl, ctl->conn))
+ return false;
+
+ /* get the number of memory parameters */
+ if (virNodeGetMemoryStats(ctl->conn, NULL, &nparams, 0) != 0) {
+ vshError(ctl, "%s",
+ _("Unable to get number of memory stats"));
+ goto cleanup;
+ }
+
+ if (nparams == 0) {
+ /* nothing to output */
+ ret = true;
+ goto cleanup;
+ }
+
+ /* now go get all the memory parameters */
+ params = vshCalloc(ctl, nparams, sizeof(*params));
+ if (virNodeGetMemoryStats(ctl->conn, params, &nparams, 0) != 0) {
+ vshError(ctl, "%s", _("Unable to get memory stats"));
+ goto cleanup;
+ }
+
+ for (i = 0; i < nparams; i++)
+ vshPrint(ctl, "%-15s: %20llu kB\n", params[i].field, params[i].value);
+
+ ret = true;
+
+ cleanup:
+ VIR_FREE(params);
+ return ret;
+}
+
+/*
* "capabilities" command
*/
static const vshCmdInfo info_capabilities[] = {
@@ -10998,6 +11048,7 @@ static const vshCmdDef hostAndHypervisorCmds[] = {
{"freecell", cmdFreecell, opts_freecell, info_freecell, 0},
{"hostname", cmdHostname, NULL, info_hostname, 0},
{"nodeinfo", cmdNodeinfo, NULL, info_nodeinfo, 0},
+ {"nodememstats", cmdNodememstats, NULL, info_nodememstats, 0},
{"qemu-monitor-command", cmdQemuMonitorCommand, opts_qemu_monitor_command,
info_qemu_monitor_command, 0},
{"sysinfo", cmdSysinfo, NULL, info_sysinfo, 0},
diff --git a/tools/virsh.pod b/tools/virsh.pod
index ef01f41..bafc6f2 100644
--- a/tools/virsh.pod
+++ b/tools/virsh.pod
@@ -237,6 +237,10 @@ Print the XML representation of the hypervisor sysinfo, if
available.
Returns basic information about the node, like number and type of CPU,
and size of the physical memory.
+=item B<nodememstats>
+
+Returns memory stats of the node.
+
=item B<capabilities>
Print an XML document describing the capabilities of the hypervisor
--
1.7.1