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virsh: added --all flag to freecell command

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This will iterate over all NUMA nodes, showing
free memory for each and sum at the end.
Existing default behavior is not changed.
This commit is contained in:
Michal Privoznik 2011-01-28 19:21:57 +01:00 committed by Eric Blake
parent 96f4986aca
commit 30e21374ea
1 changed files with 65 additions and 14 deletions
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57
tools/virsh.c
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@ -2273,36 +2273,87 @@ static const vshCmdInfo info_freecell[] = {
static const vshCmdOptDef opts_freecell[] = {
{"cellno", VSH_OT_INT, 0, N_("NUMA cell number")},
{"all", VSH_OT_BOOL, 0, N_("show free memory for all NUMA cells")},
{NULL, 0, 0, NULL}
};
static int
cmdFreecell(vshControl *ctl, const vshCmd *cmd)
{
int func_ret = FALSE;
int ret;
int cell, cell_given;
unsigned long long memory;
unsigned long long *nodes = NULL;
int all_given;
virNodeInfo info;
if (!vshConnectionUsability(ctl, ctl->conn))
return FALSE;
cell = vshCommandOptInt(cmd, "cellno", &cell_given);
all_given = vshCommandOptBool(cmd, "all");
if (all_given && cell_given) {
vshError(ctl, "%s", _("--cellno and --all are mutually exclusive. "
"Please choose only one."));
goto cleanup;
}
if (all_given) {
if (virNodeGetInfo(ctl->conn, &info) < 0) {
vshError(ctl, "%s", _("failed to get NUMA nodes count"));
goto cleanup;
}
if (!info.nodes) {
vshError(ctl, "%s", _("no NUMA nodes present"));
goto cleanup;
}
if (VIR_ALLOC_N(nodes, info.nodes) < 0) {
vshError(ctl, "%s", _("could not allocate memory"));
goto cleanup;
}
ret = virNodeGetCellsFreeMemory(ctl->conn, nodes, 0, info.nodes);
if (ret != info.nodes) {
vshError(ctl, "%s", _("could not get information about "
"all NUMA nodes"));
goto cleanup;
}
memory = 0;
for (cell = 0; cell < info.nodes; cell++) {
vshPrint(ctl, "%5d: %10llu kB\n", cell, (nodes[cell]/1024));
memory += nodes[cell];
}
vshPrintExtra(ctl, "--------------------\n");
vshPrintExtra(ctl, "%5s: %10llu kB\n", _("Total"), memory/1024);
} else {
if (!cell_given) {
memory = virNodeGetFreeMemory(ctl->conn);
if (memory == 0)
return FALSE;
goto cleanup;
} else {
ret = virNodeGetCellsFreeMemory(ctl->conn, &memory, cell, 1);
if (ret != 1)
return FALSE;
goto cleanup;
}
if (cell == -1)
vshPrint(ctl, "%s: %llu kB\n", _("Total"), (memory/1024));
else
vshPrint(ctl, "%d: %llu kB\n", cell, (memory/1024));
}
return TRUE;
func_ret = TRUE;
cleanup:
VIR_FREE(nodes);
return func_ret;
}
/*