# tracer: function_graph
#
# CPU  DURATION                  FUNCTION CALLS
# |     |   |                     |   |   |   |
  6)               |  mem_read() {
  6)               |    irq_enter_rcu() {
  6)   0.401 us    |      irqtime_account_irq();
  6)   1.192 us    |    }
  6)               |    __sysvec_irq_work() {
  6)               |      __wake_up() {
  6)   0.300 us    |        _raw_spin_lock_irqsave();
  6)               |        __wake_up_common() {
  6)               |          pollwake() {
  6)               |            default_wake_function() {
  6)               |              try_to_wake_up() {
  6)   0.290 us    |                _raw_spin_lock_irqsave();
  6)               |                select_task_rq_fair() {
  6)   0.281 us    |                  __rcu_read_lock();
  6)   0.290 us    |                  available_idle_cpu();
  6)   0.291 us    |                  cpus_share_cache();
  6)   0.781 us    |                  available_idle_cpu();
  6)   0.281 us    |                  __rcu_read_unlock();
  6)   5.841 us    |                }
  6)               |                set_task_cpu() {
  6)   2.074 us    |                  migrate_task_rq_fair();
  6)   0.400 us    |                  set_task_rq_fair();
  6)   3.667 us    |                }
  6)               |                ttwu_queue_wakelist() {
  6)   2.224 us    |                  __smp_call_single_queue();
  6)   3.346 us    |                }
  6)   0.300 us    |                _raw_spin_unlock_irqrestore();
  6) + 17.834 us   |              }
  6) + 18.474 us   |            }
  6) + 19.036 us   |          }
  6) + 19.717 us   |        }
  6)   1.032 us    |        _raw_spin_unlock_irqrestore();
  6) + 22.452 us   |      }
  6) + 23.374 us   |    }
  6)               |    irq_exit_rcu() {
  6)   0.350 us    |      irqtime_account_irq();
  6)   0.301 us    |      sched_core_idle_cpu();
  6)   1.463 us    |    }
  6)               |    mem_rw() {
  6)               |      get_free_pages_noprof() {
  6)               |        alloc_pages_noprof() {
  6)               |          alloc_pages_mpol_noprof() {
  6)   0.311 us    |            policy_nodemask();
  6)               |            __alloc_pages_noprof() {
  6)   0.280 us    |              __cond_resched();
  6)               |              get_page_from_freelist() {
  6)   0.291 us    |                cond_accept_memory();
  6)   0.301 us    |                _raw_spin_trylock();
  6)   0.280 us    |                _raw_spin_unlock();
  6)   0.511 us    |                prep_new_page();
  6)   2.735 us    |              }
  6)   3.837 us    |            }
  6)   4.949 us    |          }
  6)   5.490 us    |        }
  6)   6.031 us    |      }
  6)               |      access_remote_vm() {
  6)               |        __access_remote_vm() {
  6)               |          down_read_killable() {
  6)   0.291 us    |            __cond_resched();
  6)   0.831 us    |          }
  6)   0.290 us    |          __rcu_read_lock();
  6)   0.291 us    |          __rcu_read_unlock();
  6)               |          get_user_pages_remote() {
  6)   0.311 us    |            is_valid_gup_args();
  6)               |            __get_user_pages() {
  6)               |              gup_vma_lookup() {
  6)               |                find_vma() {
  6)   0.291 us    |                  __rcu_read_lock();
  6)   0.291 us    |                  __rcu_read_unlock();
  6)   1.893 us    |                }
  6)   2.465 us    |              }
  6)               |              check_vma_flags() {
  6)   0.361 us    |                vma_is_secretmem();
  6)   0.942 us    |              }
  6)   0.290 us    |              __cond_resched();
  6)   0.290 us    |              vma_pgtable_walk_begin();
  6)               |              follow_page_pte() {
  6)               |                __pte_offset_map_lock() {
  6)   0.450 us    |                  __pte_offset_map();
  6)   0.300 us    |                  _raw_spin_lock();
  6)   1.573 us    |                }
  6)   0.310 us    |                vm_normal_page();
  6)   0.391 us    |                try_grab_folio();
  6)               |                mark_page_accessed() {
  6)   0.310 us    |                  folio_mark_accessed();
  6)   0.852 us    |                }
  6)   0.281 us    |                _raw_spin_unlock();
  6)   0.291 us    |                __rcu_read_unlock();
  6)   5.610 us    |              }
  6)   0.290 us    |              vma_pgtable_walk_end();
  6) + 12.414 us   |            }
  6) + 13.575 us   |          }
  6)   0.300 us    |          __rcu_read_lock();
  6)   0.280 us    |          __rcu_read_unlock();
  6)   0.300 us    |          up_read();
  6) + 18.956 us   |        }
  6) + 19.506 us   |      }
  6)               |      __check_object_size() {
  6)   0.301 us    |        check_stack_object();
  6)   0.291 us    |        is_vmalloc_addr();
  6)   0.301 us    |        __virt_addr_valid();
  6)   1.953 us    |      }
  6)               |      mmput() {
  6)   0.281 us    |        __cond_resched();
  6)   0.821 us    |      }
  6)               |      free_pages() {
  6)               |        __free_pages() {
  6)               |          free_unref_page() {
  6)   0.300 us    |            get_pfnblock_flags_mask();
  6)   0.290 us    |            _raw_spin_trylock();
  6)   0.320 us    |            free_unref_page_commit();
  6)   0.280 us    |            _raw_spin_unlock();
  6)   2.505 us    |          }
  6)   3.036 us    |        }
  6)   3.577 us    |      }
  6) + 33.653 us   |    }
  6) + 63.319 us   |  }