找了一台Intel的设备，跑了一次性能测试
可用横屏观看
代码语言：javascript复制Intel Haswell Processor
主频 2808400492Hz
VxWorks 6.9 SMP
循环10遍
数据单位: 微秒
测试项 平均值 最小值 最大值
---------------- -------- -------- --------
/* binary semaphore */
Vx_SemBCreate 0.499 0.478 0.530
Vx_SemBDelete 0.791 0.779 0.810
Vx_SemBGiveNoTask 0.077 0.076 0.077
Vx_SemBGiveTaskInQ 0.103 0.099 0.117
Vx_SemBTakeUnavail 0.075 0.074 0.076
Vx_SemBTakeAvail 0.070 0.069 0.072
/* counting semaphore */
Vx_SemCCreate 0.488 0.466 0.540
Vx_SemCDelete 0.794 0.779 0.820
Vx_SemCGiveNoTask 0.057 0.056 0.057
Vx_SemCGiveTaskInQ 0.112 0.108 0.126
Vx_SemCTakeUnavail 0.044 0.042 0.046
Vx_SemCTakeAvail 0.050 0.050 0.050
/* mutex semaphore */
Vx_SemMCreate 0.487 0.474 0.524
Vx_SemMDelete 0.788 0.772 0.836
Vx_SemMGiveNoTask 0.062 0.062 0.063
Vx_SemMGiveTaskInQ 0.141 0.133 0.163
Vx_SemMTakeUnavailOwn 0.041 0.040 0.042
Vx_SemMTakeAvail 0.052 0.051 0.055
/* reader/writer semaphore */
Vx_SemRWCreate 0.528 0.501 0.580
Vx_SemRWDelete 0.818 0.794 0.846
Vx_SemRWGiveNoTask 0.068 0.067 0.069
Vx_SemRWGiveRNoTask 0.071 0.068 0.087
Vx_SemRWGiveWTaskInQW 0.100 0.091 0.140
Vx_SemRWGiveRTaskInQW 0.077 0.070 0.112
Vx_SemRWGiveWTaskInQR 0.075 0.068 0.092
Vx_SemRWTakeUnavailOwn 0.060 0.058 0.062
Vx_SemRWTakeRUnavailOwn 0.057 0.056 0.063
Vx_SemRWTakeAvail 0.060 0.059 0.061
Vx_SemRWTakeRAvail 0.058 0.058 0.059
/* task-related */
Vx_TaskSpawn 3.795 3.748 3.861
Vx_TaskDelete 3.952 3.914 3.978
Vx_TaskInit 3.205 3.132 3.394
Vx_TaskActivate 0.075 0.070 0.085
Vx_TaskSuspendReady 0.095 0.091 0.116
Vx_TaskSuspendPend 0.075 0.071 0.093
Vx_TaskSuspendSusp 0.072 0.072 0.073
Vx_TaskSuspendDelay 0.074 0.072 0.076
Vx_TaskResumeReady 0.055 0.054 0.055
Vx_TaskResumePend 0.054 0.053 0.055
Vx_TaskResumeSusp 0.075 0.069 0.088
Vx_TaskResumeDelay 0.054 0.053 0.055
Vx_TaskPrioritySetReady 0.099 0.097 0.107
Vx_TaskPrioritySetPend 0.080 0.079 0.081
/* watchdog */
Vx_WdCreate 0.456 0.436 0.496
Vx_WdDelStarted 0.790 0.750 0.819
Vx_WdDelNotStarted 0.787 0.766 0.819
Vx_WdStartQEmpty 0.252 0.246 0.264
Vx_WdStartQFull 0.258 0.251 0.270
Vx_WdCancel 0.063 0.059 0.072
/* message queue */
Vx_MsgQCreate 0.535 0.519 0.596
Vx_MsgQDelete 0.894 0.874 0.935
Vx_MsgQSendNoPend 0.494 0.487 0.515
Vx_MsgQSendPend 0.523 0.517 0.536
Vx_MsgQSendQFull 0.326 0.321 0.342
Vx_MsgQRecvAvail 0.402 0.398 0.418
Vx_MsgQRecvNoAvail 0.236 0.230 0.246
/* events */
Vx_EventSendSelf 0.080 0.078 0.082
Vx_EventReceiveAvailable 0.027 0.025 0.029
Vx_EventReceiveUnavailable 0.038 0.036 0.043
Vx_EventTaskSendWanted 0.087 0.081 0.101
Vx_EventTaskSendUnwanted 0.075 0.071 0.077
/* interrupt response time */
Vx_IntEntNoSched 4.265 4.245 4.292
Vx_IntTotalNoSched 4.304 4.241 4.335
Vx_IntTotalWithSched 4.819 4.786 4.842
Vx_SmpAffIntTotalWithSched 5.917 5.893 5.966
Vx_SmpNoAffIntTotalWithSched 5.917 5.882 5.936
/* context switch */
Vx_CtxSemPend 0.380 0.319 0.844
Vx_CtxSemUnpend 0.336 0.327 0.366
Vx_CtxMsgQPend 0.487 0.466 0.599
Vx_CtxMsgQUnpend 0.881 0.870 0.900
Vx_CtxEventPend 0.323 0.309 0.363
Vx_CtxEventUnpend 0.316 0.299 0.340
Vx_CtxSmpAffinitySemUnPend 1.608 1.582 1.652
Vx_CtxSmpAffinityMsgQUnPend 2.404 2.343 2.483
Vx_CtxSmpAffinityEventUnPend 1.564 1.541 1.591
Vx_CtxSmpNoAffinitySemUnPend 1.567 1.546 1.619
Vx_CtxSmpNoAffinityMsgQUnPend 2.377 2.326 2.438
Vx_CtxSmpNoAffinityEventUnPend 1.535 1.505 1.559
/* binary semaphore in RTP */
Rtp_SemBCreate 1.232 1.209 1.265
Rtp_SemBDelete 1.806 1.786 1.837
Rtp_SemBGiveNoTask 0.408 0.404 0.412
Rtp_SemBGiveTaskInQ 0.434 0.419 0.450
Rtp_SemBTakeUnavail 0.466 0.464 0.471
Rtp_SemBTakeAvail 0.397 0.393 0.400
/* counting semaphore in RTP */
Rtp_SemCCreate 1.215 1.194 1.246
Rtp_SemCDelete 1.808 1.782 1.829
Rtp_SemCGiveNoTask 0.389 0.388 0.390
Rtp_SemCGiveTaskInQ 0.439 0.434 0.451
Rtp_SemCTakeUnavail 0.433 0.430 0.435
Rtp_SemCTakeAvail 0.383 0.380 0.386
/* mutex semaphore in RTP */
Rtp_SemMCreate 1.242 1.216 1.299
Rtp_SemMDelete 1.797 1.782 1.814
Rtp_SemMGiveNoTask 0.090 0.089 0.091
Rtp_SemMGiveTaskInQ 0.590 0.580 0.644
Rtp_SemMTakeUnavailOwn 0.076 0.075 0.078
Rtp_SemMTakeAvail 0.087 0.087 0.089
/* task-related in RTP */
Rtp_TaskSpawn 13.584 13.417 14.045
Rtp_TaskDelete 15.934 15.796 16.012
Rtp_TaskSuspendReady 0.440 0.426 0.493
Rtp_TaskSuspendPend 0.424 0.406 0.446
Rtp_TaskSuspendSusp 0.421 0.419 0.425
Rtp_TaskSuspendDelay 0.420 0.408 0.439
Rtp_TaskResumeReady 0.403 0.401 0.408
Rtp_TaskResumePend 0.404 0.400 0.406
Rtp_TaskResumeSusp 0.418 0.407 0.430
Rtp_TaskResumeDelay 0.405 0.402 0.407
/* message queue in RTP */
Rtp_MsgQCreate 0.897 0.882 0.930
Rtp_MsgQDelete 1.514 1.496 1.534
Rtp_MsgQSendNoPend 0.861 0.846 0.910
Rtp_MsgQSendPend 0.883 0.875 0.889
Rtp_MsgQSendQFull 0.736 0.727 0.742
Rtp_MsgQRecvAvail 0.755 0.743 0.762
Rtp_MsgQRecvNoAvail 0.651 0.645 0.657
/* events in RTP */
Rtp_EventSendSelf 0.308 0.296 0.316
Rtp_EventReceiveAvailable 0.290 0.281 0.299
Rtp_EventReceiveUnavailable 0.359 0.354 0.367
Rtp_EventTaskSendWanted 0.418 0.408 0.445
Rtp_EventTaskSendUnwanted 0.394 0.385 0.400
/* context switch in RTP */
Rtp_CtxSemPend 0.599 0.586 0.614
Rtp_CtxSemUnpend 0.611 0.602 0.627
Rtp_CtxMsgQPend 0.776 0.754 0.807
Rtp_CtxMsgQUnpend 1.183 1.175 1.199
Rtp_CtxEventPend 0.581 0.562 0.607
Rtp_CtxEventUnpend 0.552 0.526 0.571
/* system call in RTP */
Rtp_Syscall 0.232 0.226 0.237
/* RTP to RTP */
Rtp_RtpToRtpSemPend 0.687 0.671 0.710
Rtp_RtpToRtpSemUnpend 0.715 0.708 0.731
Rtp_RtpToRtpMsgQPend 0.871 0.854 0.898
Rtp_RtpToRtpMsgQUnpend 1.364 1.348 1.400
Rtp_RtpToRtpEventPend 0.657 0.645 0.708
Rtp_RtpToRtpEventUnpend 0.627 0.617 0.663
Rtp_RtpToRtpSmpSemUnpend 1.827 1.751 1.971
Rtp_RtpToRtpSmpMsgQUnpend 2.990 2.920 3.146
Rtp_RtpToRtpSmpEventUnpend 1.631 1.549 1.752
相对耗时的
- 创建任务，因为有大块内存操作
- RTP操作，因为有系统调用
总体来说，都是亚微秒级的
