drivers/staging/ktap/samples/tracepoints/eventcount.kp

   1 #!/usr/bin/env ktap
   2
   3 # showing all tracepoints in histogram style
   4
   5 s = ptable()
   6
   7 trace *:* {
   8         s[argname] <<< 1
   9 }
  10
  11 trace_end {
  12         histogram(s)
  13 }
  14
  15 #Results:
  16 #^C
  17 #
  18 #                          value ------------- Distribution ------------- count
  19 #                 rcu_utilization |@@@@@                                  225289
  20 #                        cpu_idle |@@@                                    120168
  21 #                    sched_wakeup |@@                                     91950
  22 #                    timer_cancel |@@                                     91232
  23 #                     timer_start |@@                                     91201
  24 #                sched_stat_sleep |@@                                     90981
  25 #               timer_expire_exit |@@                                     90634
  26 #              timer_expire_entry |@@                                     90625
  27 #                  hrtimer_cancel |@                                      75411
  28 #                   hrtimer_start |@                                      74946
  29 #                   softirq_raise |@                                      63117
  30 #                    softirq_exit |@                                      63109
  31 #                   softirq_entry |@                                      63094
  32 #                    sched_switch |@                                      62331
  33 #                 sched_stat_wait |@                                      60491
  34 #             hrtimer_expire_exit |@                                      47538
  35 #            hrtimer_expire_entry |@                                      47530
  36 #              sched_stat_runtime |                                       2780
  37 #                 kmem_cache_free |                                       2684
  38 #                kmem_cache_alloc |                                       2415
  39 #                           kfree |                                       2288
  40 #                        sys_exit |                                       2145
  41 #                       sys_enter |                                       2145
  42 #         sys_exit_rt_sigprocmask |                                       1000
  43 #        sys_enter_rt_sigprocmask |                                       1000
  44 #                      timer_init |                                       912
  45 #              sched_stat_blocked |                                       685
  46 #                         kmalloc |                                       667
  47 #           workqueue_execute_end |                                       621
  48 #         workqueue_execute_start |                                       621
  49 #                sys_enter_select |                                       566
  50 #                 sys_exit_select |                                       566
  51 #                  sys_enter_read |                                       526
  52 #                   sys_exit_read |                                       526
  53 #                    mm_page_free |                                       478
  54 #                   mm_page_alloc |                                       427
  55 #            mm_page_free_batched |                                       382
  56 #                   net_dev_queue |                                       296
  57 #                    net_dev_xmit |                                       296
  58 #                     consume_skb |                                       296
  59 #                  sys_exit_write |                                       290
  60 #                 sys_enter_write |                                       290
  61 #                       kfree_skb |                                       289
  62 #           kmem_cache_alloc_node |                                       269
  63 #                    kmalloc_node |                                       263
  64 #                 sys_enter_close |                                       249
  65 #                  sys_exit_close |                                       249
  66 #                    hrtimer_init |                                       248
  67 #               netif_receive_skb |                                       242
  68 #                  sys_enter_open |                                       237
  69 #                   sys_exit_open |                                       237
  70 #                       napi_poll |                                       226
  71 #              sched_migrate_task |                                       207
  72 #                   sys_exit_poll |                                       173
  73 #                  sys_enter_poll |                                       173
  74 #            workqueue_queue_work |                                       152
  75 #         workqueue_activate_work |                                       152
  76 #                sys_enter_stat64 |                                       133
  77 #                 sys_exit_stat64 |                                       133
  78 #           sys_exit_rt_sigaction |                                       133
  79 #          sys_enter_rt_sigaction |                                       133
  80 #               irq_handler_entry |                                       125
  81 #                irq_handler_exit |                                       125
  82 #       mm_page_alloc_zone_locked |                                       99
  83 #             sys_exit_mmap_pgoff |                                       66
  84 #            sys_enter_mmap_pgoff |                                       66
  85 #                sys_exit_fstat64 |                                       54
  86 #               sys_enter_fstat64 |                                       54
  87 #             sys_enter_nanosleep |                                       51
  88 #              sys_exit_nanosleep |                                       51
  89 #                 block_bio_queue |                                       46
  90 #                 block_bio_remap |                                       46
  91 #              block_bio_complete |                                       46
  92 #                  mix_pool_bytes |                                       44
  93 #              mm_page_pcpu_drain |                                       31
  94 #                   sys_exit_time |                                       23
  95 #                  sys_enter_time |                                       23
  96 #                 sys_exit_access |                                       20
  97 #                sys_enter_access |                                       20
  98 #           mix_pool_bytes_nolock |                                       18
  99 #              sys_enter_mprotect |                                       18
 100 #               sys_exit_mprotect |                                       18
 101 #               sys_enter_geteuid |                                       17
 102 #                sys_exit_geteuid |                                       17
 103 #                sys_enter_munmap |                                       17
 104 #                 sys_exit_munmap |                                       17
 105 #                     block_getrq |                                       16
 106 #                sys_enter_getuid |                                       16
 107 #                sys_enter_getgid |                                       16
 108 #                 sys_exit_getgid |                                       16
 109 #                 sys_exit_getuid |                                       16
 110 #                  block_rq_issue |                                       16
 111 #         scsi_dispatch_cmd_start |                                       16
 112 #               block_rq_complete |                                       16
 113 #          scsi_dispatch_cmd_done |                                       16
 114 #               sys_enter_getegid |                                       16
 115 #                sys_exit_getegid |                                       16
 116 #                 block_rq_insert |                                       16
 117 #         skb_copy_datagram_iovec |                                       15
 118 #                   sys_enter_brk |                                       15
 119 #                    sys_exit_brk |                                       15
 120 #             credit_entropy_bits |                                       14
 121 #                   wbc_writepage |                                       14
 122 #                  sys_exit_clone |                                       12
 123 #              block_touch_buffer |                                       12
 124 #              sched_process_wait |                                       11
 125 #               sys_enter_waitpid |                                       11
 126 #                sys_exit_waitpid |                                       11
 127 #               writeback_written |                                       10
 128 #                 writeback_start |                                       10
 129 #              writeback_queue_io |                                       10
 130 #     ext4_es_lookup_extent_enter |                                       9
 131 #                 sys_enter_ioctl |                                       9
 132 #                  sys_exit_ioctl |                                       9
 133 #       ext4_ext_map_blocks_enter |                                       9
 134 #        ext4_ext_map_blocks_exit |                                       9
 135 #      ext4_es_lookup_extent_exit |                                       9
 136 #           ext4_es_insert_extent |                                       9
 137 #            ext4_ext_show_extent |                                       8
 138 #                 extract_entropy |                                       8
 139 #ext4_es_find_delayed_extent_exit |                                       8
 140 # ext4_es_find_delayed_extent_... |                                       8
 141 #         writeback_pages_written |                                       7
 142 #                   sys_exit_dup2 |                                       7
 143 #                  sys_enter_dup2 |                                       7
 144 #                 signal_generate |                                       7
 145 #               sys_enter_fcntl64 |                                       7
 146 #                sys_exit_fcntl64 |                                       7
 147 #              global_dirty_state |                                       7
 148 #     writeback_dirty_inode_start |                                       7
 149 #             block_bio_backmerge |                                       7
 150 #           writeback_dirty_inode |                                       7
 151 #                sched_wakeup_new |                                       6
 152 #              sched_process_free |                                       6
 153 #            sys_enter_exit_group |                                       6
 154 #                    task_newtask |                                       6
 155 #                 sys_enter_clone |                                       6
 156 #              sched_process_fork |                                       6
 157 #              sched_process_exit |                                       6
 158 #           sys_exit_gettimeofday |                                       5
 159 #                  signal_deliver |                                       5
 160 #          sys_enter_gettimeofday |                                       5
 161 #          writeback_single_inode |                                       4
 162 #                sys_enter_execve |                                       4
 163 #                     task_rename |                                       4
 164 #              sched_process_exec |                                       4
 165 #              block_dirty_buffer |                                       4
 166 #                 sys_exit_execve |                                       4
 167 #                    block_unplug |                                       4
 168 #               sched_stat_iowait |                                       4
 169 #    writeback_single_inode_start |                                       4
 170 #                      block_plug |                                       4
 171 #           writeback_write_inode |                                       3
 172 #                  sys_enter_pipe |                                       3
 173 #            writeback_dirty_page |                                       3
 174 #     writeback_write_inode_start |                                       3
 175 #           ext4_mark_inode_dirty |                                       3
 176 #              ext4_journal_start |                                       3
 177 #                   sys_exit_pipe |                                       3
 178 #           jbd2_drop_transaction |                                       2
 179 #             jbd2_commit_locking |                                       2
 180 #            jbd2_commit_flushing |                                       2
 181 #               jbd2_handle_start |                                       2
 182 #                  jbd2_run_stats |                                       2
 183 #               sys_exit_getdents |                                       2
 184 #           jbd2_checkpoint_stats |                                       2
 185 #             sys_enter_getgroups |                                       2
 186 #               jbd2_start_commit |                                       2
 187 #                 jbd2_end_commit |                                       2
 188 #              ext4_da_writepages |                                       2
 189 #               jbd2_handle_stats |                                       2
 190 #              sys_enter_statfs64 |                                       2
 191 #               sys_exit_statfs64 |                                       2
 192 #              sys_exit_getgroups |                                       2
 193 #                  sys_exit_lseek |                                       2
 194 #                 sys_enter_lseek |                                       2
 195 #              sys_enter_getdents |                                       2
 196 #             ext4_da_write_pages |                                       2
 197 #             jbd2_commit_logging |                                       2
 198 #             ext4_request_blocks |                                       1
 199 #                 sys_exit_openat |                                       1
 200 #     ext4_discard_preallocations |                                       1
 201 #              ext4_mballoc_alloc |                                       1
 202 #                sys_enter_openat |                                       1
 203 #       ext4_da_writepages_result |                                       1
 204 #            ext4_allocate_blocks |                                       1
 205 #              sys_enter_newuname |                                       1
 206 #    ext4_da_update_reserve_space |                                       1
 207 # ext4_get_reserved_cluster_alloc |                                       1
 208 #               sys_exit_newuname |                                       1
 209 #           writeback_wake_thread |                                       1
 210