perfmon: % power level per node

Show % time spent per graph node in power level 0, 1 and 2.

Type: improvement

Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Change-Id: I678ee812fa993af39568e9f9dfbf2396fc13ad42

src/plugins/perfmon/CMakeLists.txt

@@ -29,4 +29,5 @@ add_vpp_plugin(perfmon
   intel/bundle/mem_bw.c
   intel/bundle/cache_hit_miss.c
   intel/bundle/branch_mispred.c
+  intel/bundle/power_license.c
 )

src/plugins/perfmon/intel/bundle/power_license.c

@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2020 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/vnet.h>
+#include <perfmon/perfmon.h>
+#include <perfmon/intel/core.h>
+
+static u8 *
+format_power_licensing (u8 *s, va_list *args)
+{
+  perfmon_node_stats_t *ns = va_arg (*args, perfmon_node_stats_t *);
+  int row = va_arg (*args, int);
+
+  switch (row)
+    {
+    case 0:
+      s = format (s, "%.2f", (ns->value[1] / (f64) ns->value[0]) * 100);
+      break;
+    case 1:
+      s = format (s, "%.2f", (ns->value[2] / (f64) ns->value[0]) * 100);
+      break;
+    case 2:
+      s = format (s, "%.2f", (ns->value[3] / (f64) ns->value[0]) * 100);
+      break;
+    case 3:
+      s = format (s, "%.2f", (ns->value[4] / (f64) ns->value[0]) * 100);
+      break;
+    }
+  return s;
+}
+
+PERFMON_REGISTER_BUNDLE (power_licensing) = {
+  .name = "power-licensing",
+  .description = "Thread power licensing",
+  .source = "intel-core",
+  .type = PERFMON_BUNDLE_TYPE_NODE,
+  .events[0] = INTEL_CORE_E_CPU_CLK_UNHALTED_THREAD_P,
+  .events[1] = INTEL_CORE_E_CORE_POWER_LVL0_TURBO_LICENSE,
+  .events[2] = INTEL_CORE_E_CORE_POWER_LVL1_TURBO_LICENSE,
+  .events[3] = INTEL_CORE_E_CORE_POWER_LVL2_TURBO_LICENSE,
+  .events[4] = INTEL_CORE_E_CORE_POWER_THROTTLE,
+  .n_events = 5,
+  .format_fn = format_power_licensing,
+  .column_headers = PERFMON_STRINGS ("LVL0", "LVL1", "LVL2", "Throttle"),
+};