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virNodeGetCPUMap: Implement virsh support.

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- Added a new host command nodecpumap
- Added documentation

Example:
$ virsh nodecpumap
CPUs present:  8
CPUs online:   3
CPU map:       y-y-y---

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Viktor Mihajlovski 2012-10-16 16:05:13 +02:00 committed by Eric Blake
parent d39291d4c0
commit 08842171d4
2 changed files with 45 additions and 0 deletions
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40
tools/virsh-host.c
View File

@ -270,6 +270,45 @@ cmdNodeinfo(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
return true;
}
/*
* "nodecpumap" command
*/
static const vshCmdInfo info_node_cpumap[] = {
{"help", N_("node cpu map")},
{"desc", N_("Displays the node's total number of CPUs, the number of"
" online CPUs and the list of online CPUs.")},
{NULL, NULL}
};
static bool
cmdNodeCpuMap(vshControl *ctl, const vshCmd *cmd ATTRIBUTE_UNUSED)
{
int cpu, cpunum;
unsigned char *cpumap = NULL;
unsigned int online;
bool ret = false;
cpunum = virNodeGetCPUMap(ctl->conn, &cpumap, &online, 0);
if (cpunum < 0) {
vshError(ctl, "%s", _("Unable to get cpu map"));
goto cleanup;
}
vshPrint(ctl, "%-15s %d\n", _("CPUs present:"), cpunum);
vshPrint(ctl, "%-15s %d\n", _("CPUs online:"), online);
vshPrint(ctl, "%-15s ", _("CPU map:"));
for (cpu = 0; cpu < cpunum; cpu++)
vshPrint(ctl, "%c", VIR_CPU_USED(cpumap, cpu) ? 'y' : '-');
vshPrint(ctl, "\n");
ret = true;
cleanup:
VIR_FREE(cpumap);
return ret;
}
/*
* "nodecpustats" command
*/
@ -1046,6 +1085,7 @@ const vshCmdDef hostAndHypervisorCmds[] = {
{"hostname", cmdHostname, NULL, info_hostname, 0},
{"node-memory-tune", cmdNodeMemoryTune,
opts_node_memory_tune, info_node_memory_tune, 0},
{"nodecpumap", cmdNodeCpuMap, NULL, info_node_cpumap, 0},
{"nodecpustats", cmdNodeCpuStats, opts_node_cpustats, info_nodecpustats, 0},
{"nodeinfo", cmdNodeinfo, NULL, info_nodeinfo, 0},
{"nodememstats", cmdNodeMemStats, opts_node_memstats, info_nodememstats, 0},

5
tools/virsh.pod
View File

@ -277,6 +277,11 @@ and size of the physical memory. The output corresponds to virNodeInfo
structure. Specifically, the "CPU socket(s)" field means number of CPU
sockets per NUMA cell.
=item B<nodecpumap>
Displays the node's total number of CPUs, the number of online CPUs
and the list of online CPUs.
=item B<nodecpustats> [I<cpu>] [I<--percent>]
Returns cpu stats of the node.