2 * perfmon.h - performance monitor
4 * Copyright (c) 2018 Cisco Systems and/or its affiliates
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 #ifndef __included_perfmon_h__
18 #define __included_perfmon_h__
20 #include <vnet/vnet.h>
21 #include <vnet/ip/ip.h>
22 #include <vnet/ethernet/ethernet.h>
25 #include <vppinfra/hash.h>
26 #include <vppinfra/error.h>
28 #include <linux/perf_event.h>
30 #define foreach_perfmon_event \
31 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, "cpu-cycles") \
32 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, "instructions") \
33 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, \
35 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, "cache-misses") \
36 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branches") \
37 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, "branch-misses") \
38 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, "bus-cycles") \
39 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, \
41 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, \
43 _(PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES, "ref-cpu-cycles") \
44 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, "page-faults") \
45 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, "context-switches") \
46 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, "cpu-migrations") \
47 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, "minor-pagefaults") \
48 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, "major-pagefaults") \
49 _(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, "emulation-faults")
56 } perfmon_event_config_t;
60 PERFMON_STATE_OFF = 0,
61 PERFMON_STATE_RUNNING,
66 u8 *thread_and_node_name;
69 u64 *vectors_this_counter;
76 } perfmon_cpuid_and_table_t;
86 /* API message ID base */
89 /* on/off switch for the periodic function */
92 /* capture pool, hash table */
93 perfmon_capture_t *capture_pool;
94 uword *capture_by_thread_and_node_name;
96 /* CPU-specific event tables, hash table of selected table (if any) */
97 perfmon_cpuid_and_table_t *perfmon_tables;
100 /* vector of events to collect */
101 perfmon_event_config_t *events_to_collect;
103 /* Base indices of synthetic event tuples */
105 u32 mispredict_event_index;
107 /* Length of time to capture a single event */
108 f64 timeout_interval;
110 /* Current event (index) being collected */
113 /* mmap base / size of (mapped) struct perf_event_mmap_page */
114 u8 **perf_event_pages;
117 /* Current perf_event file descriptors, per thread */
121 vlib_log_class_t log_class;
124 vlib_main_t *vlib_main;
125 vnet_main_t *vnet_main;
126 ethernet_main_t *ethernet_main;
129 extern perfmon_main_t perfmon_main;
131 extern vlib_node_registration_t perfmon_periodic_node;
132 uword *perfmon_parse_table (perfmon_main_t * pm, char *path, char *filename);
134 /* Periodic function events */
135 #define PERFMON_START 1
137 #endif /* __included_perfmon_h__ */
140 * fd.io coding-style-patch-verification: ON
143 * eval: (c-set-style "gnu")