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-rw-r--r--src/plugins/perfmon/intel/bundle/mem_bw.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/plugins/perfmon/intel/bundle/mem_bw.c b/src/plugins/perfmon/intel/bundle/mem_bw.c
new file mode 100644
index 00000000000..672dbb0677d
--- /dev/null
+++ b/src/plugins/perfmon/intel/bundle/mem_bw.c
@@ -0,0 +1,64 @@
+/*
+ * 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 <vppinfra/linux/sysfs.h>
+#include <perfmon/perfmon.h>
+#include <perfmon/intel/uncore.h>
+
+static u8 *
+format_intel_uncore_imc_bw (u8 *s, va_list *args)
+{
+ perfmon_reading_t *r = va_arg (*args, perfmon_reading_t *);
+ int col = va_arg (*args, int);
+ f64 tr = r->time_running * 1e-9;
+
+ switch (col)
+ {
+ case 0:
+ s = format (s, "%9.2f", tr);
+ break;
+ case 1:
+ if (r->time_running)
+ s = format (s, "%9.2f", (f64) r->value[0] * 64 * 1e-6 / tr);
+ break;
+ case 2:
+ if (r->time_running)
+ s = format (s, "%9.2f", (f64) r->value[1] * 64 * 1e-6 / tr);
+ break;
+ case 3:
+ if (r->time_running)
+ s = format (s, "%9.2f",
+ (f64) (r->value[0] + r->value[1]) * 64 * 1e-6 / tr);
+ break;
+ default:
+ break;
+ }
+
+ return s;
+}
+
+PERFMON_REGISTER_BUNDLE (intel_uncore_imc_bw) = {
+ .name = "memory-bandwidth",
+ .description = "memory reads and writes per memory controller channel",
+ .source = "intel-uncore",
+ .type = PERFMON_BUNDLE_TYPE_SYSTEM,
+ .events[0] = INTEL_UNCORE_E_IMC_UNC_M_CAS_COUNT_RD,
+ .events[1] = INTEL_UNCORE_E_IMC_UNC_M_CAS_COUNT_WR,
+ .n_events = 2,
+ .format_fn = format_intel_uncore_imc_bw,
+ .column_headers = PERFMON_STRINGS ("RunTime", "Reads (MB/s)",
+ "Writes (MB/s)", "Total (MB/s)"),
+};