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/*
* perfmon.h - performance monitor
*
* Copyright (c) 2018 Cisco Systems 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.
*/
#ifndef __included_perfmon_h__
#define __included_perfmon_h__
#include <vnet/vnet.h>
#include <vnet/ip/ip.h>
#include <vnet/ethernet/ethernet.h>
#include <vlib/log.h>
#include <vppinfra/hash.h>
#include <vppinfra/error.h>
#include <linux/perf_event.h>
#define foreach_perfmon_event \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES, "cpu-cycles") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_INSTRUCTIONS, "instructions") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_REFERENCES, \
"cache-references") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_CACHE_MISSES, "cache-misses") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branches") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BRANCH_MISSES, "branch-misses") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_BUS_CYCLES, "bus-cycles") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND, \
"stall-frontend") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND, \
"stall-backend") \
_(PERF_TYPE_HARDWARE, PERF_COUNT_HW_REF_CPU_CYCLES, "ref-cpu-cycles") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS, "page-faults") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CONTEXT_SWITCHES, "context-switches") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_CPU_MIGRATIONS, "cpu-migrations") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MIN, "minor-pagefaults") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_PAGE_FAULTS_MAJ, "major-pagefaults") \
_(PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS, "emulation-faults")
typedef struct
{
char *name;
int pe_type;
int pe_config;
} perfmon_event_config_t;
typedef enum
{
PERFMON_STATE_OFF = 0,
PERFMON_STATE_RUNNING,
} perfmon_state_t;
typedef struct
{
u8 *thread_and_node_name;
u8 **counter_names;
u64 *counter_values;
u64 *vectors_this_counter;
} perfmon_capture_t;
typedef struct
{
u32 cpuid;
const char **table;
} perfmon_cpuid_and_table_t;
typedef struct
{
u8 *name;
u8 *value;
} name_value_pair_t;
typedef struct
{
/* API message ID base */
u16 msg_id_base;
/* on/off switch for the periodic function */
volatile u8 state;
/* capture pool, hash table */
perfmon_capture_t *capture_pool;
uword *capture_by_thread_and_node_name;
/* CPU-specific event tables, hash table of selected table (if any) */
perfmon_cpuid_and_table_t *perfmon_tables;
uword *perfmon_table;
/* vector of single events to collect */
perfmon_event_config_t *single_events_to_collect;
/* vector of paired events to collect */
perfmon_event_config_t *paired_events_to_collect;
/* Base indices of synthetic event tuples */
u32 ipc_event_index;
u32 mispredict_event_index;
/* Length of time to capture a single event */
f64 timeout_interval;
/* Current event (index) being collected */
u32 current_event;
int n_active;
u32 **rdpmc_indices;
/* mmap base / size of (mapped) struct perf_event_mmap_page */
u8 ***perf_event_pages;
u32 page_size;
/* Current perf_event file descriptors, per thread */
int **pm_fds;
/* thread bitmap */
uword *thread_bitmap;
/* Logging */
vlib_log_class_t log_class;
/* convenience */
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
ethernet_main_t *ethernet_main;
} perfmon_main_t;
extern perfmon_main_t perfmon_main;
extern vlib_node_registration_t perfmon_periodic_node;
uword *perfmon_parse_table (perfmon_main_t * pm, char *path, char *filename);
/* Periodic function events */
#define PERFMON_START 1
#endif /* __included_perfmon_h__ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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