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Linux 性能优化工具 perf top

1. perf

perf 是一个调查 Linux 中各种性能问题的有力工具。

NAME
       perf - Performance analysis tools for Linux

SYNOPSIS
       perf [--version] [--help] COMMAND [ARGS]

DESCRIPTION
       Performance counters for Linux are a new kernel-based subsystem that provide a framework for all things performance
       analysis. It covers hardware level (CPU/PMU, Performance Monitoring Unit) features and software features (software
       counters, tracepoints) as well.

SEE ALSO
       perf-stat(1), perf-top(1), perf-record(1), perf-report(1), perf-list(1)

性能 counter 是 Linux 新内核中提供了专门的子系统 , 该子系统提供了一个专门的框架用于各种性能分析。包括各种硬件性能指标和软件性能指标。

perf 包含了:perf-stat (perf stat), perf-top (perf top), perf-record (perf record), perf-list (perf list)

注意:在查看manual时需要使用 man perf-top, 但是执行命令时使用:perf top

2. perf list

perf list 主要是用于列出有哪些可用的event,可以供 perf top -e eventname 来分析。

perf list [hw|sw|cache|tracepoint|pmu|event_glob]

perf list hw 可以列出 hard ware 的event, sw 是software的event, 其它类似

[root@localhost ~]# perf list hw
[root@localhost ~]# perf list sw
  cpu-clock                                          [Software event]
  task-clock                                         [Software event]
  page-faults OR faults                              [Software event]
  context-switches OR cs                             [Software event]
  cpu-migrations OR migrations                       [Software event]
  minor-faults                                       [Software event]
  major-faults                                       [Software event]
  alignment-faults                                   [Software event]
  emulation-faults                                   [Software event]
  dummy                                              [Software event]
[root@localhost ~]# perf list pmu
[root@localhost ~]# perf list event_glob

List of pre-defined events (to be used in -e):
[root@localhost ~]#

perf list tracepoint 有搞定700多个(tracepoint events):

 

  ext4:ext4_free_inode                               [Tracepoint event]
  ext4:ext4_request_inode                            [Tracepoint event]
  ext4:ext4_allocate_inode                           [Tracepoint event]
  ext4:ext4_write_begin                              [Tracepoint event]
  ext4:ext4_da_write_begin                           [Tracepoint event]
  ext4:ext4_ordered_write_end                        [Tracepoint event]
  ext4:ext4_writeback_write_end                      [Tracepoint event]
  ext4:ext4_journalled_write_end                     [Tracepoint event]
  ext4:ext4_da_write_end                             [Tracepoint event]
  ext4:ext4_writepage                                [Tracepoint event]
  ext4:ext4_da_writepages                            [Tracepoint event]
  ext4:ext4_da_write_pages                           [Tracepoint event]
  ext4:ext4_da_writepages_result                     [Tracepoint event]
  ext4:ext4_discard_blocks                           [Tracepoint event]
  ext4:ext4_mb_new_inode_pa                          [Tracepoint event]
  ext4:ext4_mb_new_group_pa                          [Tracepoint event]
  ext4:ext4_mb_release_inode_pa                      [Tracepoint event]
  ext4:ext4_mb_release_group_pa                      [Tracepoint event]
  ext4:ext4_discard_preallocations                   [Tracepoint event]
  ext4:ext4_mb_discard_preallocations                [Tracepoint event]
  ext4:ext4_request_blocks                           [Tracepoint event]
  ext4:ext4_allocate_blocks                          [Tracepoint event]
  ext4:ext4_free_blocks                              [Tracepoint event]
  ext4:ext4_sync_file                                [Tracepoint event]
  ext4:ext4_sync_fs                                  [Tracepoint event]
  ext4:ext4_alloc_da_blocks                          [Tracepoint event]
  ext4:ext4_mballoc_alloc                            [Tracepoint event]
  ext4:ext4_mballoc_prealloc                         [Tracepoint event]
  ext4:ext4_mballoc_discard                          [Tracepoint event]
  ext4:ext4_mballoc_free                             [Tracepoint event]
  ext4:ext4_trim_extent                              [Tracepoint event]
  ext4:ext4_trim_all_free                            [Tracepoint event]
  ext4:ext4_update_reserve_space                     [Tracepoint event]
  jbd2:jbd2_checkpoint                               [Tracepoint event]
  jbd2:jbd2_start_commit                             [Tracepoint event]
  jbd2:jbd2_commit_locking                           [Tracepoint event]
  jbd2:jbd2_commit_flushing                          [Tracepoint event]
  jbd2:jbd2_commit_logging                           [Tracepoint event]
  jbd2:jbd2_drop_transaction                         [Tracepoint event]
  jbd2:jbd2_end_commit                               [Tracepoint event]
  jbd2:jbd2_submit_inode_data                        [Tracepoint event]
  jbd2:jbd2_run_stats                                [Tracepoint event]
  jbd2:jbd2_checkpoint_stats                         [Tracepoint event]
  jbd2:jbd2_update_superblock_end                    [Tracepoint event]
  skb:kfree_skb                                      [Tracepoint event]
  skb:consume_skb                                    [Tracepoint event]
  skb:skb_copy_datagram_iovec                        [Tracepoint event]
  net:net_dev_xmit                                   [Tracepoint event]
  net:net_dev_queue                                  [Tracepoint event]
  net:netif_receive_skb                              [Tracepoint event]
  net:netif_rx                                       [Tracepoint event]
  napi:napi_poll                                     [Tracepoint event]
  sock:sock_rcvqueue_full                            [Tracepoint event]
  sock:sock_exceed_buf_limit                         [Tracepoint event]
  udp:udp_fail_queue_rcv_skb                         [Tracepoint event]
  scsi:scsi_dispatch_cmd_start                       [Tracepoint event]
  scsi:scsi_dispatch_cmd_error                       [Tracepoint event]
  scsi:scsi_dispatch_cmd_done                        [Tracepoint event]
  scsi:scsi_dispatch_cmd_timeout                     [Tracepoint event]
  scsi:scsi_eh_wakeup                                [Tracepoint event]
  ras:aer_event                                      [Tracepoint event]
  block:block_rq_abort                               [Tracepoint event]
  block:block_rq_requeue                             [Tracepoint event]
  block:block_rq_complete                            [Tracepoint event]
  block:block_rq_insert                              [Tracepoint event]
  block:block_rq_issue                               [Tracepoint event]
  block:block_bio_bounce                             [Tracepoint event]
  block:block_bio_complete                           [Tracepoint event]
  block:block_bio_backmerge                          [Tracepoint event]
  block:block_bio_frontmerge                         [Tracepoint event]
  block:block_bio_queue                              [Tracepoint event]
  block:block_getrq                                  [Tracepoint event]
  block:block_sleeprq                                [Tracepoint event]
  block:block_plug                                   [Tracepoint event]
  block:block_unplug_timer                           [Tracepoint event]
  block:block_unplug_io                              [Tracepoint event]
  block:block_split                                  [Tracepoint event]
  block:block_remap                                  [Tracepoint event]
  block:block_rq_remap                               [Tracepoint event]
  writeback:writeback_nothread                       [Tracepoint event]
  writeback:writeback_queue                          [Tracepoint event]
  writeback:writeback_exec                           [Tracepoint event]
  writeback:writeback_pages_written                  [Tracepoint event]
  writeback:writeback_nowork                         [Tracepoint event]
  writeback:writeback_bdi_register                   [Tracepoint event]
  writeback:writeback_bdi_unregister                 [Tracepoint event]
  writeback:writeback_task_start                     [Tracepoint event]
  writeback:writeback_task_stop                      [Tracepoint event]
  writeback:wbc_writeback_start                      [Tracepoint event]
  writeback:wbc_writeback_written                    [Tracepoint event]
  writeback:wbc_writeback_wait                       [Tracepoint event]
  writeback:wbc_balance_dirty_start                  [Tracepoint event]
  writeback:wbc_balance_dirty_written                [Tracepoint event]
  writeback:wbc_balance_dirty_wait                   [Tracepoint event]
  writeback:wbc_writepage                            [Tracepoint event]
  kmem:kmalloc                                       [Tracepoint event]
  kmem:kmem_cache_alloc                              [Tracepoint event]
  kmem:kmalloc_node                                  [Tracepoint event]
  kmem:kmem_cache_alloc_node                         [Tracepoint event]
  kmem:kfree                                         [Tracepoint event]
  kmem:kmem_cache_free                               [Tracepoint event]
  kmem:mm_page_free_direct                           [Tracepoint event]
  kmem:mm_pagevec_free                               [Tracepoint event]
  kmem:mm_page_alloc                                 [Tracepoint event]
  kmem:mm_page_alloc_zone_locked                     [Tracepoint event]
  kmem:mm_page_pcpu_drain                            [Tracepoint event]
  kmem:mm_page_alloc_extfrag                         [Tracepoint event]
  kmem:mm_anon_fault                                 [Tracepoint event]
  kmem:mm_anon_pgin                                  [Tracepoint event]
  kmem:mm_anon_cow                                   [Tracepoint event]
  kmem:mm_anon_userfree                              [Tracepoint event]
  kmem:mm_anon_unmap                                 [Tracepoint event]
  kmem:mm_filemap_fault                              [Tracepoint event]
  kmem:mm_filemap_cow                                [Tracepoint event]
  kmem:mm_filemap_unmap                              [Tracepoint event]
  kmem:mm_filemap_userunmap                          [Tracepoint event]
  kmem:mm_pagereclaim_pgout                          [Tracepoint event]
  kmem:mm_pagereclaim_free                           [Tracepoint event]
  kmem:mm_background_writeout                        [Tracepoint event]
  kmem:mm_olddata_writeout                           [Tracepoint event]
  kmem:mm_balancedirty_writeout                      [Tracepoint event]
  kmem:mm_kswapd_ran                                 [Tracepoint event]
  kmem:mm_directreclaim_reclaimall                   [Tracepoint event]
  kmem:mm_directreclaim_reclaimzone                  [Tracepoint event]
  kmem:mm_pagereclaim_shrinkzone                     [Tracepoint event]
  kmem:mm_pagereclaim_shrinkactive                   [Tracepoint event]
  kmem:mm_pagereclaim_shrinkinactive                 [Tracepoint event]
  kmem:mm_kernel_pagefault                           [Tracepoint event]
  kmem:mm_vmscan_kswapd_sleep                        [Tracepoint event]
  kmem:mm_vmscan_kswapd_wake                         [Tracepoint event]
  kmem:mm_vmscan_wakeup_kswapd                       [Tracepoint event]
  kmem:mm_vmscan_direct_reclaim_begin                [Tracepoint event]
  kmem:mm_vmscan_direct_reclaim_end                  [Tracepoint event]
  kmem:mm_vmscan_lru_isolate                         [Tracepoint event]
  kmem:mm_vmscan_writepage                           [Tracepoint event]
  power:power_start                                  [Tracepoint event]
  power:power_frequency                              [Tracepoint event]
  power:power_end                                    [Tracepoint event]
  power:pstate_sample                                [Tracepoint event]
  module:module_load                                 [Tracepoint event]
  module:module_free                                 [Tracepoint event]
  module:module_get                                  [Tracepoint event]
  module:module_put                                  [Tracepoint event]
  module:module_request                              [Tracepoint event]
  workqueue:workqueue_insertion                      [Tracepoint event]
  workqueue:workqueue_execution                      [Tracepoint event]
  workqueue:workqueue_creation                       [Tracepoint event]
  workqueue:workqueue_destruction                    [Tracepoint event]
  signal:signal_generate                             [Tracepoint event]
  signal:signal_deliver                              [Tracepoint event]
  timer:timer_init                                   [Tracepoint event]
  timer:timer_start                                  [Tracepoint event]
  timer:timer_expire_entry                           [Tracepoint event]
  timer:timer_expire_exit                            [Tracepoint event]
  timer:timer_cancel                                 [Tracepoint event]
  timer:hrtimer_init                                 [Tracepoint event]
  timer:hrtimer_start                                [Tracepoint event]
  timer:hrtimer_expire_entry                         [Tracepoint event]
  timer:hrtimer_expire_exit                          [Tracepoint event]
  timer:hrtimer_cancel                               [Tracepoint event]
  timer:itimer_state                                 [Tracepoint event]
  timer:itimer_expire                                [Tracepoint event]
  irq:irq_handler_entry                              [Tracepoint event]
  irq:irq_handler_exit                               [Tracepoint event]
  irq:softirq_entry                                  [Tracepoint event]
  irq:softirq_exit                                   [Tracepoint event]
  irq:softirq_raise                                  [Tracepoint event]
  sched:sched_kthread_stop                           [Tracepoint event]
  sched:sched_kthread_stop_ret                       [Tracepoint event]
  sched:sched_wait_task                              [Tracepoint event]
  sched:sched_wakeup                                 [Tracepoint event]
  sched:sched_wakeup_new                             [Tracepoint event]
  sched:sched_switch                                 [Tracepoint event]
  sched:sched_migrate_task                           [Tracepoint event]
  sched:sched_process_free                           [Tracepoint event]
  sched:sched_process_exit                           [Tracepoint event]
  sched:sched_process_wait                           [Tracepoint event]
  sched:sched_process_fork                           [Tracepoint event]
  sched:sched_stat_wait                              [Tracepoint event]
  sched:sched_stat_sleep                             [Tracepoint event]
  sched:sched_stat_iowait                            [Tracepoint event]
  sched:sched_stat_blocked                           [Tracepoint event]
  sched:sched_stat_runtime                           [Tracepoint event]
  mce:mce_record                                     [Tracepoint event]
  syscalls:sys_enter_sendmmsg                        [Tracepoint event]
  syscalls:sys_exit_sendmmsg                         [Tracepoint event]
  syscalls:sys_enter_recvmmsg                        [Tracepoint event]
  syscalls:sys_exit_recvmmsg                         [Tracepoint event]
  syscalls:sys_enter_socketcall                      [Tracepoint event]
  syscalls:sys_exit_socketcall                       [Tracepoint event]
  syscalls:sys_enter_add_key                         [Tracepoint event]
  syscalls:sys_exit_add_key                          [Tracepoint event]
  syscalls:sys_enter_request_key                     [Tracepoint event]
  syscalls:sys_exit_request_key                      [Tracepoint event]
  syscalls:sys_enter_keyctl                          [Tracepoint event]
  syscalls:sys_exit_keyctl                           [Tracepoint event]
  syscalls:sys_enter_mq_open                         [Tracepoint event]
  syscalls:sys_exit_mq_open                          [Tracepoint event]
  syscalls:sys_enter_mq_unlink                       [Tracepoint event]
  syscalls:sys_exit_mq_unlink                        [Tracepoint event]
  syscalls:sys_enter_mq_timedsend                    [Tracepoint event]
  syscalls:sys_exit_mq_timedsend                     [Tracepoint event]
  syscalls:sys_enter_mq_timedreceive                 [Tracepoint event]
  syscalls:sys_exit_mq_timedreceive                  [Tracepoint event]
  syscalls:sys_enter_mq_notify                       [Tracepoint event]
  syscalls:sys_exit_mq_notify                        [Tracepoint event]
  syscalls:sys_enter_mq_getsetattr                   [Tracepoint event]
  syscalls:sys_exit_mq_getsetattr                    [Tracepoint event]
  syscalls:sys_enter_quotactl                        [Tracepoint event]
  syscalls:sys_exit_quotactl                         [Tracepoint event]
  syscalls:sys_enter_nfsservctl                      [Tracepoint event]
  syscalls:sys_exit_nfsservctl                       [Tracepoint event]
  syscalls:sys_enter_flock                           [Tracepoint event]
  syscalls:sys_exit_flock                            [Tracepoint event]
  syscalls:sys_enter_io_setup                        [Tracepoint event]
  syscalls:sys_exit_io_setup                         [Tracepoint event]
  syscalls:sys_enter_io_destroy                      [Tracepoint event]
  syscalls:sys_exit_io_destroy                       [Tracepoint event]
  syscalls:sys_enter_io_submit                       [Tracepoint event]
  syscalls:sys_exit_io_submit                        [Tracepoint event]
  syscalls:sys_enter_io_cancel                       [Tracepoint event]
  syscalls:sys_exit_io_cancel                        [Tracepoint event]
  syscalls:sys_enter_io_getevents                    [Tracepoint event]
  syscalls:sys_exit_io_getevents                     [Tracepoint event]
  syscalls:sys_enter_eventfd2                        [Tracepoint event]
  syscalls:sys_exit_eventfd2                         [Tracepoint event]
  syscalls:sys_enter_eventfd                         [Tracepoint event]
  syscalls:sys_exit_eventfd                          [Tracepoint event]
  syscalls:sys_enter_timerfd_create                  [Tracepoint event]
  syscalls:sys_exit_timerfd_create                   [Tracepoint event]
  syscalls:sys_enter_timerfd_settime                 [Tracepoint event]
  syscalls:sys_exit_timerfd_settime                  [Tracepoint event]
  syscalls:sys_enter_timerfd_gettime                 [Tracepoint event]
  syscalls:sys_exit_timerfd_gettime                  [Tracepoint event]
  syscalls:sys_enter_signalfd4                       [Tracepoint event]
  syscalls:sys_exit_signalfd4                        [Tracepoint event]
  syscalls:sys_enter_signalfd                        [Tracepoint event]
  syscalls:sys_exit_signalfd                         [Tracepoint event]
  syscalls:sys_enter_epoll_create1                   [Tracepoint event]
  syscalls:sys_exit_epoll_create1                    [Tracepoint event]
  syscalls:sys_enter_epoll_create                    [Tracepoint event]
  syscalls:sys_exit_epoll_create                     [Tracepoint event]
  syscalls:sys_enter_epoll_ctl                       [Tracepoint event]
  syscalls:sys_exit_epoll_ctl                        [Tracepoint event]
  syscalls:sys_enter_epoll_wait                      [Tracepoint event]
  syscalls:sys_exit_epoll_wait                       [Tracepoint event]
  syscalls:sys_enter_epoll_pwait                     [Tracepoint event]
  syscalls:sys_exit_epoll_pwait                      [Tracepoint event]
  syscalls:sys_enter_inotify_init1                   [Tracepoint event]
  syscalls:sys_exit_inotify_init1                    [Tracepoint event]
  syscalls:sys_enter_inotify_init                    [Tracepoint event]
  syscalls:sys_exit_inotify_init                     [Tracepoint event]
  syscalls:sys_enter_inotify_add_watch               [Tracepoint event]
  syscalls:sys_exit_inotify_add_watch                [Tracepoint event]
  syscalls:sys_enter_inotify_rm_watch                [Tracepoint event]
  syscalls:sys_exit_inotify_rm_watch                 [Tracepoint event]
  syscalls:sys_enter_ioprio_set                      [Tracepoint event]
  syscalls:sys_exit_ioprio_set                       [Tracepoint event]
  syscalls:sys_enter_ioprio_get                      [Tracepoint event]
  syscalls:sys_exit_ioprio_get                       [Tracepoint event]
  syscalls:sys_enter_bdflush                         [Tracepoint event]
  syscalls:sys_exit_bdflush                          [Tracepoint event]
  syscalls:sys_enter_statfs                          [Tracepoint event]
  syscalls:sys_exit_statfs                           [Tracepoint event]
  syscalls:sys_enter_statfs64                        [Tracepoint event]
  syscalls:sys_exit_statfs64                         [Tracepoint event]
  syscalls:sys_enter_fstatfs                         [Tracepoint event]
  syscalls:sys_exit_fstatfs                          [Tracepoint event]
  syscalls:sys_enter_fstatfs64                       [Tracepoint event]
  syscalls:sys_exit_fstatfs64                        [Tracepoint event]
  syscalls:sys_enter_ustat                           [Tracepoint event]
  syscalls:sys_exit_ustat                            [Tracepoint event]
  syscalls:sys_enter_utime                           [Tracepoint event]
  syscalls:sys_exit_utime                            [Tracepoint event]
  syscalls:sys_enter_utimensat                       [Tracepoint event]
  syscalls:sys_exit_utimensat                        [Tracepoint event]
  syscalls:sys_enter_futimesat                       [Tracepoint event]
  syscalls:sys_exit_futimesat                        [Tracepoint event]
  syscalls:sys_enter_utimes                          [Tracepoint event]
  syscalls:sys_exit_utimes                           [Tracepoint event]
  syscalls:sys_enter_sync                            [Tracepoint event]
  syscalls:sys_exit_sync                             [Tracepoint event]
  syscalls:sys_enter_syncfs                          [Tracepoint event]
  syscalls:sys_exit_syncfs                           [Tracepoint event]
  syscalls:sys_enter_fsync                           [Tracepoint event]
  syscalls:sys_exit_fsync                            [Tracepoint event]
  syscalls:sys_enter_fdatasync                       [Tracepoint event]
  syscalls:sys_exit_fdatasync                        [Tracepoint event]
  syscalls:sys_enter_vmsplice                        [Tracepoint event]
  syscalls:sys_exit_vmsplice                         [Tracepoint event]
  syscalls:sys_enter_splice                          [Tracepoint event]
  syscalls:sys_exit_splice                           [Tracepoint event]
  syscalls:sys_enter_tee                             [Tracepoint event]
  syscalls:sys_exit_tee                              [Tracepoint event]
  syscalls:sys_enter_setxattr                        [Tracepoint event]
  syscalls:sys_exit_setxattr                         [Tracepoint event]
  syscalls:sys_enter_lsetxattr                       [Tracepoint event]
  syscalls:sys_exit_lsetxattr                        [Tracepoint event]
  syscalls:sys_enter_fsetxattr                       [Tracepoint event]
  syscalls:sys_exit_fsetxattr                        [Tracepoint event]
  syscalls:sys_enter_getxattr                        [Tracepoint event]
  syscalls:sys_exit_getxattr                         [Tracepoint event]
  syscalls:sys_enter_lgetxattr                       [Tracepoint event]
  syscalls:sys_exit_lgetxattr                        [Tracepoint event]
  syscalls:sys_enter_fgetxattr                       [Tracepoint event]
  syscalls:sys_exit_fgetxattr                        [Tracepoint event]
  syscalls:sys_enter_listxattr                       [Tracepoint event]
  syscalls:sys_exit_listxattr                        [Tracepoint event]
  syscalls:sys_enter_llistxattr                      [Tracepoint event]
  syscalls:sys_exit_llistxattr                       [Tracepoint event]
  syscalls:sys_enter_flistxattr                      [Tracepoint event]
  syscalls:sys_exit_flistxattr                       [Tracepoint event]
  syscalls:sys_enter_removexattr                     [Tracepoint event]
  syscalls:sys_exit_removexattr                      [Tracepoint event]
  syscalls:sys_enter_lremovexattr                    [Tracepoint event]
  syscalls:sys_exit_lremovexattr                     [Tracepoint event]
  syscalls:sys_enter_fremovexattr                    [Tracepoint event]
  syscalls:sys_exit_fremovexattr                     [Tracepoint event]
  syscalls:sys_enter_umount                          [Tracepoint event]
  syscalls:sys_exit_umount                           [Tracepoint event]
  syscalls:sys_enter_oldumount                       [Tracepoint event]
  syscalls:sys_exit_oldumount                        [Tracepoint event]
  syscalls:sys_enter_mount                           [Tracepoint event]
  syscalls:sys_exit_mount                            [Tracepoint event]
  syscalls:sys_enter_pivot_root                      [Tracepoint event]
  syscalls:sys_exit_pivot_root                       [Tracepoint event]
  syscalls:sys_enter_sysfs                           [Tracepoint event]
  syscalls:sys_exit_sysfs                            [Tracepoint event]
  syscalls:sys_enter_getcwd                          [Tracepoint event]
  syscalls:sys_exit_getcwd                           [Tracepoint event]
  syscalls:sys_enter_select                          [Tracepoint event]
  syscalls:sys_exit_select                           [Tracepoint event]
  syscalls:sys_enter_pselect6                        [Tracepoint event]
  syscalls:sys_exit_pselect6                         [Tracepoint event]
  syscalls:sys_enter_poll                            [Tracepoint event]
  syscalls:sys_exit_poll                             [Tracepoint event]
  syscalls:sys_enter_ppoll                           [Tracepoint event]
  syscalls:sys_exit_ppoll                            [Tracepoint event]
  syscalls:sys_enter_old_readdir                     [Tracepoint event]
  syscalls:sys_exit_old_readdir                      [Tracepoint event]
  syscalls:sys_enter_getdents                        [Tracepoint event]
  syscalls:sys_exit_getdents                         [Tracepoint event]
  syscalls:sys_enter_getdents64                      [Tracepoint event]
  syscalls:sys_exit_getdents64                       [Tracepoint event]
  syscalls:sys_enter_ioctl                           [Tracepoint event]
  syscalls:sys_exit_ioctl                            [Tracepoint event]
  syscalls:sys_enter_dup3                            [Tracepoint event]
  syscalls:sys_exit_dup3                             [Tracepoint event]
  syscalls:sys_enter_dup2                            [Tracepoint event]
  syscalls:sys_exit_dup2                             [Tracepoint event]
  syscalls:sys_enter_dup                             [Tracepoint event]
  syscalls:sys_exit_dup                              [Tracepoint event]
  syscalls:sys_enter_fcntl                           [Tracepoint event]
  syscalls:sys_exit_fcntl                            [Tracepoint event]
  syscalls:sys_enter_fcntl64                         [Tracepoint event]
  syscalls:sys_exit_fcntl64                          [Tracepoint event]
  syscalls:sys_enter_mknodat                         [Tracepoint event]
  syscalls:sys_exit_mknodat                          [Tracepoint event]
  syscalls:sys_enter_mknod                           [Tracepoint event]
  syscalls:sys_exit_mknod                            [Tracepoint event]
  syscalls:sys_enter_mkdirat                         [Tracepoint event]
  syscalls:sys_exit_mkdirat                          [Tracepoint event]
  syscalls:sys_enter_mkdir                           [Tracepoint event]
  syscalls:sys_exit_mkdir                            [Tracepoint event]
  syscalls:sys_enter_rmdir                           [Tracepoint event]
  syscalls:sys_exit_rmdir                            [Tracepoint event]
  syscalls:sys_enter_unlinkat                        [Tracepoint event]
  syscalls:sys_exit_unlinkat                         [Tracepoint event]
  syscalls:sys_enter_unlink                          [Tracepoint event]
  syscalls:sys_exit_unlink                           [Tracepoint event]
  syscalls:sys_enter_symlinkat                       [Tracepoint event]
  syscalls:sys_exit_symlinkat                        [Tracepoint event]
  syscalls:sys_enter_symlink                         [Tracepoint event]
  syscalls:sys_exit_symlink                          [Tracepoint event]
  syscalls:sys_enter_linkat                          [Tracepoint event]
  syscalls:sys_exit_linkat                           [Tracepoint event]
  syscalls:sys_enter_link                            [Tracepoint event]
  syscalls:sys_exit_link                             [Tracepoint event]
  syscalls:sys_enter_renameat                        [Tracepoint event]
  syscalls:sys_exit_renameat                         [Tracepoint event]
  syscalls:sys_enter_rename                          [Tracepoint event]
  syscalls:sys_exit_rename                           [Tracepoint event]
  syscalls:sys_enter_pipe2                           [Tracepoint event]
  syscalls:sys_exit_pipe2                            [Tracepoint event]
  syscalls:sys_enter_pipe                            [Tracepoint event]
  syscalls:sys_exit_pipe                             [Tracepoint event]
  syscalls:sys_enter_uselib                          [Tracepoint event]
  syscalls:sys_exit_uselib                           [Tracepoint event]
  syscalls:sys_enter_stat                            [Tracepoint event]
  syscalls:sys_exit_stat                             [Tracepoint event]
  syscalls:sys_enter_lstat                           [Tracepoint event]
  syscalls:sys_exit_lstat                            [Tracepoint event]
  syscalls:sys_enter_fstat                           [Tracepoint event]
  syscalls:sys_exit_fstat                            [Tracepoint event]
  syscalls:sys_enter_newstat                         [Tracepoint event]
  syscalls:sys_exit_newstat                          [Tracepoint event]
  syscalls:sys_enter_newlstat                        [Tracepoint event]
  syscalls:sys_exit_newlstat                         [Tracepoint event]
  syscalls:sys_enter_newfstat                        [Tracepoint event]
  syscalls:sys_exit_newfstat                         [Tracepoint event]
  syscalls:sys_enter_readlinkat                      [Tracepoint event]
  syscalls:sys_exit_readlinkat                       [Tracepoint event]
  syscalls:sys_enter_readlink                        [Tracepoint event]
  syscalls:sys_exit_readlink                         [Tracepoint event]
  syscalls:sys_enter_stat64                          [Tracepoint event]
  syscalls:sys_exit_stat64                           [Tracepoint event]
  syscalls:sys_enter_lstat64                         [Tracepoint event]
  syscalls:sys_exit_lstat64                          [Tracepoint event]
  syscalls:sys_enter_fstat64                         [Tracepoint event]
  syscalls:sys_exit_fstat64                          [Tracepoint event]
  syscalls:sys_enter_fstatat64                       [Tracepoint event]
  syscalls:sys_exit_fstatat64                        [Tracepoint event]
  syscalls:sys_enter_lseek                           [Tracepoint event]
  syscalls:sys_exit_lseek                            [Tracepoint event]
  syscalls:sys_enter_llseek                          [Tracepoint event]
  syscalls:sys_exit_llseek                           [Tracepoint event]
  syscalls:sys_enter_read                            [Tracepoint event]
  syscalls:sys_exit_read                             [Tracepoint event]
  syscalls:sys_enter_write                           [Tracepoint event]
  syscalls:sys_exit_write                            [Tracepoint event]
  syscalls:sys_enter_readv                           [Tracepoint event]
  syscalls:sys_exit_readv                            [Tracepoint event]
  syscalls:sys_enter_writev                          [Tracepoint event]
  syscalls:sys_exit_writev                           [Tracepoint event]
  syscalls:sys_enter_preadv                          [Tracepoint event]
  syscalls:sys_exit_preadv                           [Tracepoint event]
  syscalls:sys_enter_pwritev                         [Tracepoint event]
  syscalls:sys_exit_pwritev                          [Tracepoint event]
  syscalls:sys_enter_sendfile                        [Tracepoint event]
  syscalls:sys_exit_sendfile                         [Tracepoint event]
  syscalls:sys_enter_sendfile64                      [Tracepoint event]
  syscalls:sys_exit_sendfile64                       [Tracepoint event]
  syscalls:sys_enter_truncate                        [Tracepoint event]
  syscalls:sys_exit_truncate                         [Tracepoint event]
  syscalls:sys_enter_ftruncate                       [Tracepoint event]
  syscalls:sys_exit_ftruncate                        [Tracepoint event]
  syscalls:sys_enter_faccessat                       [Tracepoint event]
  syscalls:sys_exit_faccessat                        [Tracepoint event]
  syscalls:sys_enter_access                          [Tracepoint event]
  syscalls:sys_exit_access                           [Tracepoint event]
  syscalls:sys_enter_chdir                           [Tracepoint event]
  syscalls:sys_exit_chdir                            [Tracepoint event]
  syscalls:sys_enter_fchdir                          [Tracepoint event]
  syscalls:sys_exit_fchdir                           [Tracepoint event]
  syscalls:sys_enter_chroot                          [Tracepoint event]
  syscalls:sys_exit_chroot                           [Tracepoint event]
  syscalls:sys_enter_fchmod                          [Tracepoint event]
  syscalls:sys_exit_fchmod                           [Tracepoint event]
  syscalls:sys_enter_fchmodat                        [Tracepoint event]
  syscalls:sys_exit_fchmodat                         [Tracepoint event]
  syscalls:sys_enter_chmod                           [Tracepoint event]
  syscalls:sys_exit_chmod                            [Tracepoint event]
  syscalls:sys_enter_fchownat                        [Tracepoint event]
  syscalls:sys_exit_fchownat                         [Tracepoint event]
  syscalls:sys_enter_chown                           [Tracepoint event]
  syscalls:sys_exit_chown                            [Tracepoint event]
  syscalls:sys_enter_lchown                          [Tracepoint event]
  syscalls:sys_exit_lchown                           [Tracepoint event]
  syscalls:sys_enter_fchown                          [Tracepoint event]
  syscalls:sys_exit_fchown                           [Tracepoint event]
  syscalls:sys_enter_open                            [Tracepoint event]
  syscalls:sys_exit_open                             [Tracepoint event]
  syscalls:sys_enter_openat                          [Tracepoint event]
  syscalls:sys_exit_openat                           [Tracepoint event]
  syscalls:sys_enter_creat                           [Tracepoint event]
  syscalls:sys_exit_creat                            [Tracepoint event]
  syscalls:sys_enter_close                           [Tracepoint event]
  syscalls:sys_exit_close                            [Tracepoint event]
  syscalls:sys_enter_vhangup                         [Tracepoint event]
  syscalls:sys_exit_vhangup                          [Tracepoint event]
  syscalls:sys_enter_swapoff                         [Tracepoint event]
  syscalls:sys_exit_swapoff                          [Tracepoint event]
  syscalls:sys_enter_swapon                          [Tracepoint event]
  syscalls:sys_exit_swapon                           [Tracepoint event]
  syscalls:sys_enter_process_vm_readv                [Tracepoint event]
  syscalls:sys_exit_process_vm_readv                 [Tracepoint event]
  syscalls:sys_enter_process_vm_writev               [Tracepoint event]
  syscalls:sys_exit_process_vm_writev                [Tracepoint event]
  syscalls:sys_enter_msync                           [Tracepoint event]
  syscalls:sys_exit_msync                            [Tracepoint event]
  syscalls:sys_enter_mremap                          [Tracepoint event]
  syscalls:sys_exit_mremap                           [Tracepoint event]
  syscalls:sys_enter_mprotect                        [Tracepoint event]
  syscalls:sys_exit_mprotect                         [Tracepoint event]
  syscalls:sys_enter_brk                             [Tracepoint event]
  syscalls:sys_exit_brk                              [Tracepoint event]
  syscalls:sys_enter_munmap                          [Tracepoint event]
  syscalls:sys_exit_munmap                           [Tracepoint event]
  syscalls:sys_enter_mlock                           [Tracepoint event]
  syscalls:sys_exit_mlock                            [Tracepoint event]
  syscalls:sys_enter_munlock                         [Tracepoint event]
  syscalls:sys_exit_munlock                          [Tracepoint event]
  syscalls:sys_enter_mlockall                        [Tracepoint event]
  syscalls:sys_exit_mlockall                         [Tracepoint event]
  syscalls:sys_enter_munlockall                      [Tracepoint event]
  syscalls:sys_exit_munlockall                       [Tracepoint event]
  syscalls:sys_enter_mincore                         [Tracepoint event]
  syscalls:sys_exit_mincore                          [Tracepoint event]
  syscalls:sys_enter_madvise                         [Tracepoint event]
  syscalls:sys_exit_madvise                          [Tracepoint event]
  syscalls:sys_enter_remap_file_pages                [Tracepoint event]
  syscalls:sys_exit_remap_file_pages                 [Tracepoint event]
  syscalls:sys_enter_mmap_pgoff                      [Tracepoint event]
  syscalls:sys_exit_mmap_pgoff                       [Tracepoint event]
  syscalls:sys_enter_perf_event_open                 [Tracepoint event]
  syscalls:sys_exit_perf_event_open                  [Tracepoint event]
  syscalls:sys_enter_kexec_load                      [Tracepoint event]
  syscalls:sys_exit_kexec_load                       [Tracepoint event]
  syscalls:sys_enter_acct                            [Tracepoint event]
  syscalls:sys_exit_acct                             [Tracepoint event]
  syscalls:sys_enter_delete_module                   [Tracepoint event]
  syscalls:sys_exit_delete_module                    [Tracepoint event]
  syscalls:sys_enter_init_module                     [Tracepoint event]
  syscalls:sys_exit_init_module                      [Tracepoint event]
  syscalls:sys_enter_chown16                         [Tracepoint event]
  syscalls:sys_exit_chown16                          [Tracepoint event]
  syscalls:sys_enter_lchown16                        [Tracepoint event]
  syscalls:sys_exit_lchown16                         [Tracepoint event]
  syscalls:sys_enter_fchown16                        [Tracepoint event]
  syscalls:sys_exit_fchown16                         [Tracepoint event]
  syscalls:sys_enter_setregid16                      [Tracepoint event]
  syscalls:sys_exit_setregid16                       [Tracepoint event]
  syscalls:sys_enter_setgid16                        [Tracepoint event]
  syscalls:sys_exit_setgid16                         [Tracepoint event]
  syscalls:sys_enter_setreuid16                      [Tracepoint event]
  syscalls:sys_exit_setreuid16                       [Tracepoint event]
  syscalls:sys_enter_setuid16                        [Tracepoint event]
  syscalls:sys_exit_setuid16                         [Tracepoint event]
  syscalls:sys_enter_setresuid16                     [Tracepoint event]
  syscalls:sys_exit_setresuid16                      [Tracepoint event]
  syscalls:sys_enter_getresuid16                     [Tracepoint event]
  syscalls:sys_exit_getresuid16                      [Tracepoint event]
  syscalls:sys_enter_setresgid16                     [Tracepoint event]
  syscalls:sys_exit_setresgid16                      [Tracepoint event]
  syscalls:sys_enter_getresgid16                     [Tracepoint event]
  syscalls:sys_exit_getresgid16                      [Tracepoint event]
  syscalls:sys_enter_setfsuid16                      [Tracepoint event]
  syscalls:sys_exit_setfsuid16                       [Tracepoint event]
  syscalls:sys_enter_setfsgid16                      [Tracepoint event]
  syscalls:sys_exit_setfsgid16                       [Tracepoint event]
  syscalls:sys_enter_getgroups16                     [Tracepoint event]
  syscalls:sys_exit_getgroups16                      [Tracepoint event]
  syscalls:sys_enter_setgroups16                     [Tracepoint event]
  syscalls:sys_exit_setgroups16                      [Tracepoint event]
  syscalls:sys_enter_getuid16                        [Tracepoint event]
  syscalls:sys_exit_getuid16                         [Tracepoint event]
  syscalls:sys_enter_geteuid16                       [Tracepoint event]
  syscalls:sys_exit_geteuid16                        [Tracepoint event]
  syscalls:sys_enter_getgid16                        [Tracepoint event]
  syscalls:sys_exit_getgid16                         [Tracepoint event]
  syscalls:sys_enter_getegid16                       [Tracepoint event]
  syscalls:sys_exit_getegid16                        [Tracepoint event]
  syscalls:sys_enter_set_robust_list                 [Tracepoint event]
  syscalls:sys_exit_set_robust_list                  [Tracepoint event]
  syscalls:sys_enter_get_robust_list                 [Tracepoint event]
  syscalls:sys_exit_get_robust_list                  [Tracepoint event]
  syscalls:sys_enter_futex                           [Tracepoint event]
  syscalls:sys_exit_futex                            [Tracepoint event]
  syscalls:sys_enter_getgroups                       [Tracepoint event]
  syscalls:sys_exit_getgroups                        [Tracepoint event]
  syscalls:sys_enter_setgroups                       [Tracepoint event]
  syscalls:sys_exit_setgroups                        [Tracepoint event]
  syscalls:sys_enter_setns                           [Tracepoint event]
  syscalls:sys_exit_setns                            [Tracepoint event]
  syscalls:sys_enter_nanosleep                       [Tracepoint event]
  syscalls:sys_exit_nanosleep                        [Tracepoint event]
  syscalls:sys_enter_timer_create                    [Tracepoint event]
  syscalls:sys_exit_timer_create                     [Tracepoint event]
  syscalls:sys_enter_timer_gettime                   [Tracepoint event]
  syscalls:sys_exit_timer_gettime                    [Tracepoint event]
  syscalls:sys_enter_timer_getoverrun                [Tracepoint event]
  syscalls:sys_exit_timer_getoverrun                 [Tracepoint event]
  syscalls:sys_enter_timer_settime                   [Tracepoint event]
  syscalls:sys_exit_timer_settime                    [Tracepoint event]
  syscalls:sys_enter_timer_delete                    [Tracepoint event]
  syscalls:sys_exit_timer_delete                     [Tracepoint event]
  syscalls:sys_enter_clock_settime                   [Tracepoint event]
  syscalls:sys_exit_clock_settime                    [Tracepoint event]
  syscalls:sys_enter_clock_gettime                   [Tracepoint event]
  syscalls:sys_exit_clock_gettime                    [Tracepoint event]
  syscalls:sys_enter_clock_adjtime                   [Tracepoint event]
  syscalls:sys_exit_clock_adjtime                    [Tracepoint event]
  syscalls:sys_enter_clock_getres                    [Tracepoint event]
  syscalls:sys_exit_clock_getres                     [Tracepoint event]
  syscalls:sys_enter_clock_nanosleep                 [Tracepoint event]
  syscalls:sys_exit_clock_nanosleep                  [Tracepoint event]
  syscalls:sys_enter_setpriority                     [Tracepoint event]
  syscalls:sys_exit_setpriority                      [Tracepoint event]
  syscalls:sys_enter_getpriority                     [Tracepoint event]
  syscalls:sys_exit_getpriority                      [Tracepoint event]
  syscalls:sys_enter_reboot                          [Tracepoint event]
  syscalls:sys_exit_reboot                           [Tracepoint event]
  syscalls:sys_enter_setregid                        [Tracepoint event]
  syscalls:sys_exit_setregid                         [Tracepoint event]
  syscalls:sys_enter_setgid                          [Tracepoint event]
  syscalls:sys_exit_setgid                           [Tracepoint event]
  syscalls:sys_enter_setreuid                        [Tracepoint event]
  syscalls:sys_exit_setreuid                         [Tracepoint event]
  syscalls:sys_enter_setuid                          [Tracepoint event]
  syscalls:sys_exit_setuid                           [Tracepoint event]
  syscalls:sys_enter_setresuid                       [Tracepoint event]
  syscalls:sys_exit_setresuid                        [Tracepoint event]
  syscalls:sys_enter_getresuid                       [Tracepoint event]
  syscalls:sys_exit_getresuid                        [Tracepoint event]
  syscalls:sys_enter_setresgid                       [Tracepoint event]
  syscalls:sys_exit_setresgid                        [Tracepoint event]
  syscalls:sys_enter_getresgid                       [Tracepoint event]
  syscalls:sys_exit_getresgid                        [Tracepoint event]
  syscalls:sys_enter_setfsuid                        [Tracepoint event]
  syscalls:sys_exit_setfsuid                         [Tracepoint event]
  syscalls:sys_enter_setfsgid                        [Tracepoint event]
  syscalls:sys_exit_setfsgid                         [Tracepoint event]
  syscalls:sys_enter_times                           [Tracepoint event]
  syscalls:sys_exit_times                            [Tracepoint event]
  syscalls:sys_enter_setpgid                         [Tracepoint event]
  syscalls:sys_exit_setpgid                          [Tracepoint event]
  syscalls:sys_enter_getpgid                         [Tracepoint event]
  syscalls:sys_exit_getpgid                          [Tracepoint event]
  syscalls:sys_enter_getpgrp                         [Tracepoint event]
  syscalls:sys_exit_getpgrp                          [Tracepoint event]
  syscalls:sys_enter_getsid                          [Tracepoint event]
  syscalls:sys_exit_getsid                           [Tracepoint event]
  syscalls:sys_enter_setsid                          [Tracepoint event]
  syscalls:sys_exit_setsid                           [Tracepoint event]
  syscalls:sys_enter_newuname                        [Tracepoint event]
  syscalls:sys_exit_newuname                         [Tracepoint event]
  syscalls:sys_enter_sethostname                     [Tracepoint event]
  syscalls:sys_exit_sethostname                      [Tracepoint event]
  syscalls:sys_enter_setdomainname                   [Tracepoint event]
  syscalls:sys_exit_setdomainname                    [Tracepoint event]
  syscalls:sys_enter_getrlimit                       [Tracepoint event]
  syscalls:sys_exit_getrlimit                        [Tracepoint event]
  syscalls:sys_enter_old_getrlimit                   [Tracepoint event]
  syscalls:sys_exit_old_getrlimit                    [Tracepoint event]
  syscalls:sys_enter_setrlimit                       [Tracepoint event]
  syscalls:sys_exit_setrlimit                        [Tracepoint event]
  syscalls:sys_enter_getrusage                       [Tracepoint event]
  syscalls:sys_exit_getrusage                        [Tracepoint event]
  syscalls:sys_enter_umask                           [Tracepoint event]
  syscalls:sys_exit_umask                            [Tracepoint event]
  syscalls:sys_enter_prctl                           [Tracepoint event]
  syscalls:sys_exit_prctl                            [Tracepoint event]
  syscalls:sys_enter_getcpu                          [Tracepoint event]
  syscalls:sys_exit_getcpu                           [Tracepoint event]
  syscalls:sys_enter_restart_syscall                 [Tracepoint event]
  syscalls:sys_exit_restart_syscall                  [Tracepoint event]
  syscalls:sys_enter_rt_sigprocmask                  [Tracepoint event]
  syscalls:sys_exit_rt_sigprocmask                   [Tracepoint event]
  syscalls:sys_enter_rt_sigpending                   [Tracepoint event]
  syscalls:sys_exit_rt_sigpending                    [Tracepoint event]
  syscalls:sys_enter_rt_sigtimedwait                 [Tracepoint event]
  syscalls:sys_exit_rt_sigtimedwait                  [Tracepoint event]
  syscalls:sys_enter_kill                            [Tracepoint event]
  syscalls:sys_exit_kill                             [Tracepoint event]
  syscalls:sys_enter_tgkill                          [Tracepoint event]
  syscalls:sys_exit_tgkill                           [Tracepoint event]
  syscalls:sys_enter_tkill                           [Tracepoint event]
  syscalls:sys_exit_tkill                            [Tracepoint event]
  syscalls:sys_enter_rt_sigqueueinfo                 [Tracepoint event]
  syscalls:sys_exit_rt_sigqueueinfo                  [Tracepoint event]
  syscalls:sys_enter_rt_tgsigqueueinfo               [Tracepoint event]
  syscalls:sys_exit_rt_tgsigqueueinfo                [Tracepoint event]
  syscalls:sys_enter_sigpending                      [Tracepoint event]
  syscalls:sys_exit_sigpending                       [Tracepoint event]
  syscalls:sys_enter_sigprocmask                     [Tracepoint event]
  syscalls:sys_exit_sigprocmask                      [Tracepoint event]
  syscalls:sys_enter_rt_sigaction                    [Tracepoint event]
  syscalls:sys_exit_rt_sigaction                     [Tracepoint event]
  syscalls:sys_enter_sgetmask                        [Tracepoint event]
  syscalls:sys_exit_sgetmask                         [Tracepoint event]
  syscalls:sys_enter_ssetmask                        [Tracepoint event]
  syscalls:sys_exit_ssetmask                         [Tracepoint event]
  syscalls:sys_enter_signal                          [Tracepoint event]
  syscalls:sys_exit_signal                           [Tracepoint event]
  syscalls:sys_enter_pause                           [Tracepoint event]
  syscalls:sys_exit_pause                            [Tracepoint event]
  syscalls:sys_enter_rt_sigsuspend                   [Tracepoint event]
  syscalls:sys_exit_rt_sigsuspend                    [Tracepoint event]
  syscalls:sys_enter_alarm                           [Tracepoint event]
  syscalls:sys_exit_alarm                            [Tracepoint event]
  syscalls:sys_enter_getpid                          [Tracepoint event]
  syscalls:sys_exit_getpid                           [Tracepoint event]
  syscalls:sys_enter_getppid                         [Tracepoint event]
  syscalls:sys_exit_getppid                          [Tracepoint event]
  syscalls:sys_enter_getuid                          [Tracepoint event]
  syscalls:sys_exit_getuid                           [Tracepoint event]
  syscalls:sys_enter_geteuid                         [Tracepoint event]
  syscalls:sys_exit_geteuid                          [Tracepoint event]
  syscalls:sys_enter_getgid                          [Tracepoint event]
  syscalls:sys_exit_getgid                           [Tracepoint event]
  syscalls:sys_enter_getegid                         [Tracepoint event]
  syscalls:sys_exit_getegid                          [Tracepoint event]
  syscalls:sys_enter_gettid                          [Tracepoint event]
  syscalls:sys_exit_gettid                           [Tracepoint event]
  syscalls:sys_enter_sysinfo                         [Tracepoint event]
  syscalls:sys_exit_sysinfo                          [Tracepoint event]
  syscalls:sys_enter_ptrace                          [Tracepoint event]
  syscalls:sys_exit_ptrace                           [Tracepoint event]
  syscalls:sys_enter_capget                          [Tracepoint event]
  syscalls:sys_exit_capget                           [Tracepoint event]
  syscalls:sys_enter_capset                          [Tracepoint event]
  syscalls:sys_exit_capset                           [Tracepoint event]
  syscalls:sys_enter_sysctl                          [Tracepoint event]
  syscalls:sys_exit_sysctl                           [Tracepoint event]
  syscalls:sys_enter_time                            [Tracepoint event]
  syscalls:sys_exit_time                             [Tracepoint event]
  syscalls:sys_enter_stime                           [Tracepoint event]
  syscalls:sys_exit_stime                            [Tracepoint event]
  syscalls:sys_enter_gettimeofday                    [Tracepoint event]
  syscalls:sys_exit_gettimeofday                     [Tracepoint event]
  syscalls:sys_enter_settimeofday                    [Tracepoint event]
  syscalls:sys_exit_settimeofday                     [Tracepoint event]
  syscalls:sys_enter_adjtimex                        [Tracepoint event]
  syscalls:sys_exit_adjtimex                         [Tracepoint event]
  syscalls:sys_enter_getitimer                       [Tracepoint event]
  syscalls:sys_exit_getitimer                        [Tracepoint event]
  syscalls:sys_enter_setitimer                       [Tracepoint event]
  syscalls:sys_exit_setitimer                        [Tracepoint event]
  syscalls:sys_enter_exit                            [Tracepoint event]
  syscalls:sys_exit_exit                             [Tracepoint event]
  syscalls:sys_enter_exit_group                      [Tracepoint event]
  syscalls:sys_exit_exit_group                       [Tracepoint event]
  syscalls:sys_enter_waitid                          [Tracepoint event]
  syscalls:sys_exit_waitid                           [Tracepoint event]
  syscalls:sys_enter_wait4                           [Tracepoint event]
  syscalls:sys_exit_wait4                            [Tracepoint event]
  syscalls:sys_enter_waitpid                         [Tracepoint event]
  syscalls:sys_exit_waitpid                          [Tracepoint event]
  syscalls:sys_enter_syslog                          [Tracepoint event]
  syscalls:sys_exit_syslog                           [Tracepoint event]
  syscalls:sys_enter_personality                     [Tracepoint event]
  syscalls:sys_exit_personality                      [Tracepoint event]
  syscalls:sys_enter_set_tid_address                 [Tracepoint event]
  syscalls:sys_exit_set_tid_address                  [Tracepoint event]
  syscalls:sys_enter_unshare                         [Tracepoint event]
  syscalls:sys_exit_unshare                          [Tracepoint event]
  syscalls:sys_enter_nice                            [Tracepoint event]
  syscalls:sys_exit_nice                             [Tracepoint event]
  syscalls:sys_enter_sched_setscheduler              [Tracepoint event]
  syscalls:sys_exit_sched_setscheduler               [Tracepoint event]
  syscalls:sys_enter_sched_setparam                  [Tracepoint event]
  syscalls:sys_exit_sched_setparam                   [Tracepoint event]
  syscalls:sys_enter_sched_getscheduler              [Tracepoint event]
  syscalls:sys_exit_sched_getscheduler               [Tracepoint event]
  syscalls:sys_enter_sched_getparam                  [Tracepoint event]
  syscalls:sys_exit_sched_getparam                   [Tracepoint event]
  syscalls:sys_enter_sched_setaffinity               [Tracepoint event]
  syscalls:sys_exit_sched_setaffinity                [Tracepoint event]
  syscalls:sys_enter_sched_getaffinity               [Tracepoint event]
  syscalls:sys_exit_sched_getaffinity                [Tracepoint event]
  syscalls:sys_enter_sched_yield                     [Tracepoint event]
  syscalls:sys_exit_sched_yield                      [Tracepoint event]
  syscalls:sys_enter_sched_get_priority_max          [Tracepoint event]
  syscalls:sys_exit_sched_get_priority_max           [Tracepoint event]
  syscalls:sys_enter_sched_get_priority_min          [Tracepoint event]
  syscalls:sys_exit_sched_get_priority_min           [Tracepoint event]
  syscalls:sys_enter_sched_rr_get_interval           [Tracepoint event]
  syscalls:sys_exit_sched_rr_get_interval            [Tracepoint event]
  syscalls:sys_enter                                 [Tracepoint event]
  syscalls:sys_exit                                  [Tracepoint event]
  irq_vectors:local_timer_entry                      [Tracepoint event]
  irq_vectors:local_timer_exit                       [Tracepoint event]
  irq_vectors:reschedule_entry                       [Tracepoint event]
  irq_vectors:reschedule_exit                        [Tracepoint event]
  irq_vectors:spurious_apic_entry                    [Tracepoint event]
  irq_vectors:spurious_apic_exit                     [Tracepoint event]
  irq_vectors:error_apic_entry                       [Tracepoint event]
  irq_vectors:error_apic_exit                        [Tracepoint event]
  irq_vectors:x86_platform_ipi_entry                 [Tracepoint event]
  irq_vectors:x86_platform_ipi_exit                  [Tracepoint event]
  irq_vectors:irq_work_entry                         [Tracepoint event]
  irq_vectors:irq_work_exit                          [Tracepoint event]
  irq_vectors:call_function_entry                    [Tracepoint event]
  irq_vectors:call_function_exit                     [Tracepoint event]
  irq_vectors:call_function_single_entry             [Tracepoint event]
  irq_vectors:call_function_single_exit              [Tracepoint event]
  irq_vectors:threshold_apic_entry                   [Tracepoint event]
  irq_vectors:threshold_apic_exit                    [Tracepoint event]
  irq_vectors:thermal_apic_entry                     [Tracepoint event]
  irq_vectors:thermal_apic_exit                      [Tracepoint event]

tracepoint

分成了几大类:

ext4 文件系统的tracepoint events,如果是其它文件系统,比如XFS,也有对应的tracepoint event;

jbd2 文件日志的tracepoint events;

skb 内存的tracepoint events;

net,napi,sock,udp:网络的tracepoint events;

scsi, block, writeback 磁盘IO

kmem 内存

sched 调度

syscalls 系统调用

3. perf top -e xxx

上面的 perf list [hw|sw…] 可以知道所有的 tracepoint events, 接下来我们就可以使用 perf top -e tracepoint-event 来专门获得指定的tracepoint的信息:

1)perf top -e cpu-clock: 查看CPU的使用

2)perf top -e faults : 查看 page faults

3)perf top -e block:block_rq_issue : 查看系统IO的请求,比如可以在发现系统IO异常时,可以使用该命令进行调查,就能指定到底是什么原因导致的IO异常。 block_rq_issue 表示 block_request_issue 就是IO请求数。其实从这些可以看出,分析和调查Linux上的各种性能问题,需要我们对Linux内核有比较多的了解,不然恐怕是无从下手的。

本文永久更新链接地址:http://www.linuxidc.com/Linux/2015-10/124552.htm

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