| 1 | #
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| 2 | # $Id$
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| 3 | #
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| 4 |
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| 5 | Thanks to Eric Valette <valette@crf.canon.fr> for running the timing
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| 6 | tests and reporting this information.
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| 7 |
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| 8 | Target: 300 Mhz MCP750
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| 9 |
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| 10 | Times are reported in nanoseconds.
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| 11 |
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| 12 | Context Switch
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| 13 |
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| 14 | context switch: self_______________________________________________0.708
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| 15 | context switch: to another task____________________________________0.649
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| 16 | context switch: no floating point contexts_________________________2.360
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| 17 | fp context switch: restore 1st FP task_____________________________6.490
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| 18 | fp context switch: save initialized, restore initialized___________0.767
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| 19 | fp context switch: save idle, restore initialized__________________0.885
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| 20 | fp context switch: save idle, restore idle_________________________6.195
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| 21 |
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| 22 | Task Manager
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| 23 |
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| 24 | rtems_task_create__________________________________________________4.003
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| 25 | rtems_task_ident___________________________________________________4.995
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| 26 | rtems_task_start___________________________________________________1.587
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| 27 | rtems_task_restart: calling task___________________________________1.788
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| 28 | rtems_task_restart: suspended task -- returns to caller____________1.849
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| 29 | rtems_task_restart: blocked task -- returns to caller______________2.082
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| 30 | rtems_task_restart: ready task -- returns to caller________________1.863
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| 31 | rtems_task_restart: suspended task -- preempts caller______________3.102
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| 32 | rtems_task_restart: blocked task -- preempts caller_______________12.744
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| 33 | rtems_task_restart: ready task -- preempts caller__________________3.009
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| 34 | rtems_task_delete: calling task____________________________________6.592
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| 35 | rtems_task_delete: suspended task__________________________________3.460
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| 36 | rtems_task_delete: blocked task____________________________________3.555
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| 37 | rtems_task_delete: ready task______________________________________3.797
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| 38 | rtems_task_suspend: calling task___________________________________3.066
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| 39 | rtems_task_suspend: returns to caller______________________________0.774
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| 40 | rtems_task_resume: task readied -- returns to caller_______________0.733
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| 41 | rtems_task_resume: task readied -- preempts caller_________________1.634
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| 42 | rtems_task_set_priority: obtain current priority___________________0.524
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| 43 | rtems_task_set_priority: returns to caller_________________________0.970
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| 44 | rtems_task_set_priority: preempts caller___________________________3.686
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| 45 | rtems_task_mode: obtain current mode_______________________________0.233
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| 46 | rtems_task_mode: no reschedule_____________________________________0.231
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| 47 | rtems_task_mode: reschedule -- returns to caller___________________1.711
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| 48 | rtems_task_mode: reschedule -- preempts caller_____________________3.304
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| 49 | rtems_task_get_note________________________________________________0.549
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| 50 | rtems_task_set_note________________________________________________0.548
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| 51 | rtems_task_wake_after: yield -- returns to caller__________________3.063
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| 52 | rtems_task_wake_after: yields -- preempts caller___________________3.063
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| 53 | rtems_task_wake_when_______________________________________________3.906
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| 54 |
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| 55 | Interrupt Manager
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| 56 |
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| 57 | interrupt entry overhead: returns to nested interrupt______________1.947
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| 58 | interrupt entry overhead: returns to interrupted task______________2.891
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| 59 | interrupt entry overhead: returns to preempting task_______________0.767
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| 60 | interrupt exit overhead: returns to nested interrupt_______________0.177
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| 61 | interrupt exit overhead: returns to interrupted task_______________0.885
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| 62 | interrupt exit overhead: returns to preempting task________________2.950
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| 63 |
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| 64 | Clock Manager
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| 65 |
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| 66 | rtems_clock_set____________________________________________________1.380
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| 67 | rtems_clock_get____________________________________________________0.164
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| 68 | rtems_clock_tick___________________________________________________5.487
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| 69 |
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| 70 | Timer Manager
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| 71 |
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| 72 | rtems_timer_create_________________________________________________0.959
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| 73 | rtems_timer_ident__________________________________________________4.822
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| 74 | rtems_timer_delete: inactive_______________________________________0.749
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| 75 | rtems_timer_delete: active_________________________________________0.815
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| 76 | rtems_timer_fire_after: inactive___________________________________1.047
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| 77 | rtems_timer_fire_after: active_____________________________________0.951
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| 78 | rtems_timer_fire_when: inactive____________________________________1.145
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| 79 | rtems_timer_fire_when: active______________________________________1.133
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| 80 | rtems_timer_reset: inactive________________________________________0.848
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| 81 | rtems_timer_reset: active__________________________________________0.892
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| 82 | rtems_timer_cancel: inactive_______________________________________0.500
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| 83 | rtems_timer_cancel: active_________________________________________0.552
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| 84 |
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| 85 | Semaphore Manager
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| 86 |
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| 87 | rtems_semaphore_create 4.248
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| 88 | rtems_semaphore_ident______________________________________________5.614
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| 89 | rtems_semaphore_delete_____________________________________________3.953
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| 90 | rtems_semaphore_obtain: available__________________________________0.639
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| 91 | rtems_semaphore_obtain: not available -- NO_WAIT___________________0.638
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| 92 | rtems_semaphore_obtain: not available -- caller blocks_____________3.914
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| 93 | rtems_semaphore_release: no waiting tasks__________________________0.825
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| 94 | rtems_semaphore_release: task readied -- returns to caller_________1.175
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| 95 | rtems_semaphore_release: task readied -- preempts caller___________2.789
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| 96 |
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| 97 | Message Queue Manager
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| 98 |
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| 99 | rtems_message_queue_create________________________________________48.380
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| 100 | rtems_message_queue_ident__________________________________________4.936
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| 101 | rtems_message_queue_delete_________________________________________2.891
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| 102 | rtems_message_queue_send: no waiting tasks_________________________1.149
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| 103 | rtems_message_queue_send: task readied -- returns to caller________1.489
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| 104 | rtems_message_queue_send: task readied -- preempts caller__________3.000
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| 105 | rtems_message_queue_urgent: no waiting tasks_______________________1.145
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| 106 | rtems_message_queue_urgent: task readied -- returns to caller______1.508
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| 107 | rtems_message_queue_urgent: task readied -- preempts caller________2.961
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| 108 | rtems_message_queue_broadcast: no waiting tasks____________________0.866
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| 109 | rtems_message_queue_broadcast: task readied -- returns to caller___9.735
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| 110 | rtems_message_queue_broadcast: task readied -- preempts caller_____2.891
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| 111 | rtems_message_queue_receive: available_____________________________0.874
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| 112 | rtems_message_queue_receive: not available -- NO_WAIT______________0.757
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| 113 | rtems_message_queue_receive: not available -- caller blocks________4.091
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| 114 | rtems_message_queue_flush: no messages flushed_____________________0.554
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| 115 | rtems_message_queue_flush: messages flushed________________________0.605
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| 116 |
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| 117 | Event Manager
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| 118 |
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| 119 | rtems_event_send: no task readied__________________________________0.542
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| 120 | rtems_event_send: task readied -- returns to caller________________1.196
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| 121 | rtems_event_send: task readied -- preempts caller__________________2.558
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| 122 | rtems_event_receive: obtain current events_________________________0.082
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| 123 | rtems_event_receive: available_____________________________________0.590
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| 124 | rtems_event_receive: not available -- NO_WAIT______________________0.551
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| 125 | rtems_event_receive: not available -- caller blocks________________3.545
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| 126 |
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| 127 | Signal Manager
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| 128 |
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| 129 | rtems_signal_catch_________________________________________________0.944
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| 130 | rtems_signal_send: returns to caller_______________________________3.186
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| 131 | rtems_signal_send: signal to self__________________________________5.959
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| 132 | exit ASR overhead: returns to calling task_________________________2.950
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| 133 | exit ASR overhead: returns to preempting task______________________1.180
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| 134 |
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| 135 | Partition Manager
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| 136 |
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| 137 | rtems_partition_create____________________________________________17.464
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| 138 | rtems_partition_ident______________________________________________4.810
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| 139 | rtems_partition_delete_____________________________________________1.475
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| 140 | rtems_partition_get_buffer: available______________________________3.304
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| 141 | rtems_partition_get_buffer: not available__________________________0.472
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| 142 | rtems_partition_return_buffer______________________________________1.947
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| 143 |
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| 144 | Region Manager
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| 145 |
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| 146 | rtems_region_create________________________________________________4.425
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| 147 | rtems_region_ident_________________________________________________4.917
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| 148 | rtems_region_delete________________________________________________1.829
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| 149 | rtems_region_get_segment: available________________________________1.121
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| 150 | rtems_region_get_segment: not available -- NO_WAIT_________________1.770
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| 151 | rtems_region_get_segment: not available -- caller blocks___________6.667
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| 152 | rtems_region_return_segment: no waiting tasks______________________0.944
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| 153 | rtems_region_return_segment: task readied -- returns to caller_____1.298
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| 154 | rtems_region_return_segment: task readied -- preempts caller_______9.322
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| 155 |
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| 156 | Dual-Ported Memory Manager
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| 157 |
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| 158 | rtems_port_create__________________________________________________6.372
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| 159 | rtems_port_ident___________________________________________________4.803
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| 160 | rtems_port_delete__________________________________________________3.245
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| 161 | rtems_port_internal_to_external____________________________________0.490
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| 162 | rtems_port_external_to_internal____________________________________0.502
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| 163 |
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| 164 | IO Manager
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| 165 |
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| 166 | rtems_io_initialize________________________________________________0.090
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| 167 | rtems_io_open______________________________________________________0.075
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| 168 | rtems_io_close_____________________________________________________0.086
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| 169 | rtems_io_read______________________________________________________0.069
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| 170 | rtems_io_write_____________________________________________________0.082
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| 171 | rtems_io_control___________________________________________________0.081
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| 172 |
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| 173 | Rate Monotonic Manager
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| 174 |
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| 175 | rtems_rate_monotonic_create________________________________________7.080
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| 176 | rtems_rate_monotonic_ident_________________________________________4.814
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| 177 | rtems_rate_monotonic_cancel________________________________________5.369
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| 178 | rtems_rate_monotonic_delete: active________________________________1.121
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| 179 | rtems_rate_monotonic_delete: inactive______________________________4.248
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| 180 | rtems_rate_monotonic_period: obtain status_________________________2.419
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| 181 | rtems_rate_monotonic_period: initiate period -- returns to caller__9.204
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| 182 | rtems_rate_monotonic_period: conclude periods -- caller blocks_____2.131
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| 183 |
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| 184 |
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| 185 |
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![[RTEMS Logo]](/images/logo.png){kind=logo}
