@@ -897,9 +897,10 @@ ERST
{
.name = "stats",
- .args_type = "target:s",
- .params = "target",
- .help = "show statistics; target is either vm or vcpu",
+ .args_type = "target:s,provider:s?",
+ .params = "target [provider]",
+ .help = "show statistics for the given target (vm or vcpu); optionally filter by "
+ "provider",
.cmd = hmp_info_stats,
},
@@ -2281,6 +2281,7 @@ static StatsSchemaValueList *find_schema_value_list(
}
static void print_stats_results(Monitor *mon, StatsTarget target,
+ bool show_provider,
StatsResult *result,
StatsSchemaList *schema)
{
@@ -2295,8 +2296,10 @@ static void print_stats_results(Monitor *mon, StatsTarget target,
return;
}
- monitor_printf(mon, "provider: %s\n",
- StatsProvider_str(result->provider));
+ if (show_provider) {
+ monitor_printf(mon, "provider: %s\n",
+ StatsProvider_str(result->provider));
+ }
for (stats_list = result->stats; stats_list;
stats_list = stats_list->next,
@@ -2337,7 +2340,8 @@ static void print_stats_results(Monitor *mon, StatsTarget target,
}
/* Create the StatsFilter that is needed for an "info stats" invocation. */
-static StatsFilter *stats_filter(StatsTarget target, int cpu_index)
+static StatsFilter *stats_filter(StatsTarget target, int cpu_index,
+ StatsProvider provider)
{
StatsFilter *filter = g_malloc0(sizeof(*filter));
@@ -2359,15 +2363,31 @@ static StatsFilter *stats_filter(StatsTarget target, int cpu_index)
default:
break;
}
+
+ if (provider == STATS_PROVIDER__MAX) {
+ return filter;
+ }
+
+ /* "info stats" can only query either one or all the providers. */
+ StatsRequest *request = g_new0(StatsRequest, 1);
+ request->provider = provider;
+ StatsRequestList *request_list = g_new0(StatsRequestList, 1);
+ QAPI_LIST_PREPEND(request_list, request);
+ filter->has_providers = true;
+ filter->providers = request_list;
return filter;
}
void hmp_info_stats(Monitor *mon, const QDict *qdict)
{
const char *target_str = qdict_get_str(qdict, "target");
+ const char *provider_str = qdict_get_try_str(qdict, "provider");
+
+ StatsProvider provider = STATS_PROVIDER__MAX;
StatsTarget target;
Error *err = NULL;
StatsResultList *stats = NULL;
+ StatsResultList *entry;
StatsSchemaList *schema = NULL;
StatsFilter *filter = NULL;
@@ -2376,19 +2396,27 @@ void hmp_info_stats(Monitor *mon, const QDict *qdict)
monitor_printf(mon, "invalid stats target %s\n", target_str);
goto exit_no_print;
}
+ if (provider_str) {
+ provider = qapi_enum_parse(&StatsProvider_lookup, provider_str, -1, &err);
+ if (err) {
+ monitor_printf(mon, "invalid stats provider %s\n", provider_str);
+ goto exit_no_print;
+ }
+ }
- schema = qmp_query_stats_schemas(false, 0, &err);
+ schema = qmp_query_stats_schemas(provider_str ? true : false,
+ provider, &err);
if (err) {
goto exit;
}
switch (target) {
case STATS_TARGET_VM:
- filter = stats_filter(target, -1);
- break;
+ filter = stats_filter(target, -1, provider);
+ break;
case STATS_TARGET_VCPU: {}
int cpu_index = monitor_get_cpu_index(mon);
- filter = stats_filter(target, cpu_index);
+ filter = stats_filter(target, cpu_index, provider);
break;
default:
abort();
@@ -2398,8 +2426,8 @@ void hmp_info_stats(Monitor *mon, const QDict *qdict)
if (err) {
goto exit;
}
- if (stats) {
- print_stats_results(mon, target, stats->value, schema);
+ for (entry = stats; entry; entry = entry->next) {
+ print_stats_results(mon, target, provider_str == NULL, entry->value, schema);
}
qapi_free_StatsFilter(filter);
qapi_free_StatsSchemaList(schema);
Allow the user to request statistics for a single provider of interest. Extracted from a patch by Mark Kanda. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- hmp-commands-info.hx | 7 ++++--- monitor/hmp-cmds.c | 46 +++++++++++++++++++++++++++++++++++--------- 2 files changed, 41 insertions(+), 12 deletions(-)