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-rw-r--r--vpp/api/gmon.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/vpp/api/gmon.c b/vpp/api/gmon.c
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+++ b/vpp/api/gmon.c
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+/*
+ * Copyright (c) 2012 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 <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <netinet/in.h>
+#include <signal.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <time.h>
+#include <fcntl.h>
+#include <string.h>
+#include <vppinfra/clib.h>
+#include <vppinfra/vec.h>
+#include <vppinfra/hash.h>
+#include <vppinfra/bitmap.h>
+#include <vppinfra/fifo.h>
+#include <vppinfra/time.h>
+#include <vppinfra/mheap.h>
+#include <vppinfra/heap.h>
+#include <vppinfra/pool.h>
+#include <vppinfra/format.h>
+
+#include <vlib/vlib.h>
+#include <vlib/unix/unix.h>
+
+#include <svmdb.h>
+
+typedef struct {
+ svmdb_client_t *svmdb_client;
+ f64 *vector_rate_ptr;
+ f64 *input_rate_ptr;
+ pid_t *vpef_pid_ptr;
+ vlib_main_t *vlib_main;
+} gmon_main_t;
+
+#if DPDK == 0
+static inline u64 vnet_get_aggregate_rx_packets (void)
+{ return 0; }
+#else
+#include <vnet/vnet.h>
+#include <vnet/devices/dpdk/dpdk.h>
+#endif
+
+gmon_main_t gmon_main;
+
+static uword
+gmon_process (vlib_main_t * vm,
+ vlib_node_runtime_t * rt,
+ vlib_frame_t * f)
+{
+ f64 vector_rate;
+ u64 input_packets, last_input_packets;
+ f64 last_runtime, dt, now;
+ gmon_main_t *gm = &gmon_main;
+ pid_t vpefpid;
+
+ vpefpid = getpid();
+ *gm->vpef_pid_ptr = vpefpid;
+
+ last_runtime = 0.0;
+ last_input_packets = 0;
+
+ last_runtime = 0.0;
+ last_input_packets = 0;
+
+ while (1) {
+ vlib_process_suspend (vm, 5.0);
+ vector_rate = vlib_last_vector_length_per_node (vm);
+ *gm->vector_rate_ptr = vector_rate;
+ now = vlib_time_now(vm);
+ dt = now - last_runtime;
+ input_packets = vnet_get_aggregate_rx_packets();
+ *gm->input_rate_ptr = (f64)(input_packets - last_input_packets) / dt;
+ last_runtime = now;
+ last_input_packets = input_packets;
+ }
+
+ return 0; /* not so much */
+}
+
+VLIB_REGISTER_NODE (gmon_process_node,static) = {
+ .function = gmon_process,
+ .type = VLIB_NODE_TYPE_PROCESS,
+ .name = "gmon-process",
+};
+
+static clib_error_t *
+gmon_init (vlib_main_t *vm)
+{
+ gmon_main_t *gm = &gmon_main;
+ pid_t *swp = 0;
+ f64 *v = 0;
+
+ gm->vlib_main = vm;
+ gm->svmdb_client = svmdb_map();
+
+ /* Find or create, set to zero */
+ vec_add1 (v, 0.0);
+ svmdb_local_set_vec_variable(gm->svmdb_client,
+ "vlib_vector_rate",
+ (char *)v, sizeof (*v));
+ vec_free(v);
+ vec_add1 (v, 0.0);
+ svmdb_local_set_vec_variable(gm->svmdb_client,
+ "vnet_input_rate",
+ (char *)v, sizeof (*v));
+ vec_free(v);
+
+ vec_add1 (swp, 0.0);
+ svmdb_local_set_vec_variable(gm->svmdb_client,
+ "vpef_pid",
+ (char *)swp, sizeof (*swp));
+ vec_free(swp);
+
+ /* the value cell will never move, so acquire a reference to it */
+ gm->vector_rate_ptr =
+ svmdb_local_get_variable_reference (gm->svmdb_client,
+ SVMDB_NAMESPACE_VEC,
+ "vlib_vector_rate");
+ gm->input_rate_ptr =
+ svmdb_local_get_variable_reference (gm->svmdb_client,
+ SVMDB_NAMESPACE_VEC,
+ "vnet_input_rate");
+ gm->vpef_pid_ptr =
+ svmdb_local_get_variable_reference (gm->svmdb_client,
+ SVMDB_NAMESPACE_VEC,
+ "vpef_pid");
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (gmon_init);
+
+static clib_error_t *gmon_exit (vlib_main_t *vm)
+{
+ gmon_main_t *gm = &gmon_main;
+
+ if (gm->vector_rate_ptr) {
+ *gm->vector_rate_ptr = 0.0;
+ *gm->vpef_pid_ptr = 0;
+ *gm->input_rate_ptr = 0.0;
+ svmdb_unmap (gm->svmdb_client);
+ }
+ return 0;
+}
+VLIB_MAIN_LOOP_EXIT_FUNCTION (gmon_exit);