NXP

【zephyr】 - Time Measurement rt1050

2019-07-12 12:44发布

站内文章 / NXP MCU
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目录 1.测试结果展示 1.1 v1.13.0 验证结果  1.2  v1.14.0 新版本测试结果 2.o  sem1测试方法 2.2  read_timer_end_of_swap上下文切换
nxp rt Rt1050 测量结果，存储介质 QSPI

1.测试结果展示

1.1 v1.13.0 验证结果

BUILD: Mar 17 2019 10:29:20 starting test - Time Measurement Timing Results: Clock Frequency: 600 MHz Context switch : 124 cycles , 206 ns Tick overhead :1747 cycles , 2911 ns Thread Creation :2569 cycles , 4281 ns Thread cancel :2276 cycles , 3793 ns Thread abort :6361 cycles , 10601 ns Thread Suspend :2137 cycles , 3561 ns Thread Resume : 418 cycles , 696 ns Thread Yield : 219 cycles , 365 ns Thread Sleep : 308 cycles , 513 ns Heap Malloc : 699 cycles , 1165 ns Heap Free : 597 cycles , 995 ns Semaphore Take with context switch : 394 cycles , 656 ns Semaphore Give with context switch : 793 cycles , 1321 ns Semaphore Take without context switch : 110 cycles , 183 ns Semaphore Give without context switch : 906 cycles , 1510 ns Mutex lock : 119 cycles , 198 ns Mutex unlock : 162 cycles , 270 ns Message Queue Put with context switch :1260 cycles , 2100 ns Message Queue Put without context switch :1032 cycles , 1720 ns Message Queue get with context switch : 931 cycles , 1551 ns Message Queue get without context switch : 926 cycles , 1543 ns MailBox synchronous put :7831 cycles , 13051 ns MailBox synchronous get :1335 cycles , 2225 ns MailBox asynchronous put :2163 cycles , 3605 ns MailBox get without context switch :1017 cycles , 1695 ns Timing Measurement finished PASS - main =================================================================== =================================================================== PROJECT EXECUTION SUCCESSFUL

 1.2  v1.14.0 新版本测试结果

***** Booting Zephyr OS v1.14.0-rc3-27-g09e5acbe54dc ***** starting test - Time Measurement Timing Results: Clock Frequency: 600 MHz Context switch : 385 cycles , 641 ns Interrupt latency : 0 cycles , 0 ns Tick overhead : 0 cycles , 0 ns Thread Creation :1686 cycles , 2810 ns Thread cancel :3159 cycles , 5265 ns Thread abort :6233 cycles , 10388 ns Thread Suspend :5014 cycles , 8356 ns Thread Resume :2481 cycles , 4135 ns Thread Yield :1216 cycles , 2026 ns Thread Sleep :1521 cycles , 2535 ns Heap Malloc : 836 cycles , 1393 ns Heap Free :1108 cycles , 1846 ns Semaphore Take with context switch :9520 cycles , 15866 ns Semaphore Give with context switch :1787 cycles , 2978 ns Semaphore Take without context switch : 146 cycles , 243 ns Semaphore Give without context switch :1674 cycles , 2790 ns Mutex lock : 938 cycles , 1563 ns Mutex unlock :2344 cycles , 3906 ns Message Queue Put with context switch :2740 cycles , 4566 ns Message Queue Put without context switch :1556 cycles , 2593 ns Message Queue get with context switch :3039 cycles , 5065 ns Message Queue get without context switch : 442 cycles , 736 ns MailBox synchronous put :11013 cycles , 18355 ns MailBox synchronous get :2699 cycles , 4498 ns MailBox asynchronous put :5572 cycles , 9286 ns MailBox get without context switch :3778 cycles , 6296 ns Timing Measurement finished PASS - main =================================================================== =================================================================== PROJECT EXECUTION SUCCESSFUL

2.o  sem1测试方法

void thread_sem1_test(void *p1, void *p2, void *p3) { k_sem_give(&sem_bench); /* sync the 2 threads*/ __read_swap_end_time_value = 1; TIMING_INFO_PRE_READ(); sem_start_time = TIMING_INFO_OS_GET_TIME(); k_sem_take(&sem_bench, 10); } //main 函数 创建 sem1_tid = k_thread_create(&my_thread_0, my_stack_area_0, STACK_SIZE, thread_sem1_test, NULL, NULL, NULL, 2 /*priority*/, 0, 0); k_sleep(1000); /* u64_t test_time1 = _tsc_read(); */ sem_end_time = (__common_var_swap_end_time); u32_t sem_cycles = sem_end_time - sem_start_time; 2.1 未有上下文测量 /* Semaphore without context switch*/ TIMING_INFO_PRE_READ(); u32_t sem_give_wo_cxt_start = TIMING_INFO_OS_GET_TIME(); k_sem_give(&sem_bench); TIMING_INFO_PRE_READ(); u32_t sem_give_wo_cxt_end = TIMING_INFO_OS_GET_TIME(); u32_t sem_give_wo_cxt_cycles = sem_give_wo_cxt_end - sem_give_wo_cxt_start; TIMING_INFO_PRE_READ(); u32_t sem_take_wo_cxt_start = TIMING_INFO_OS_GET_TIME(); k_sem_take(&sem_bench, 10); TIMING_INFO_PRE_READ(); u32_t sem_take_wo_cxt_end = TIMING_INFO_OS_GET_TIME(); u32_t sem_take_wo_cxt_cycles = sem_take_wo_cxt_end - sem_take_wo_cxt_start;

2.2  read_timer_end_of_swap上下文切换

结束时间
标题
archarmcoreswap_helper.S #ifdef CONFIG_EXECUTION_BENCHMARKING stm sp!,{r0-r3} /* Save regs r0 to r4 on stack */ push {lr} bl read_timer_end_of_swap #if defined(CONFIG_ARMV6_M_ARMV8_M_BASELINE) pop {r3} mov lr,r3 #else pop {lr} #endif /* CONFIG_ARMV6_M_ARMV8_M_BASELINE */ ldm sp!,{r0-r3} /* Load back regs ro to r4 */ #endif /* CONFIG_EXECUTION_BENCHMARKING */ /* exc return */ bx lr #if defined(CONFIG_ARMV6_M_ARMV8_M_BASELINE) SECTION_FUNC(TEXT, __svc) /* Use EXC_RETURN state to find out if stack frame is on the * MSP or PSP */ ldr r0, =0x4 mov r1, lr tst r1, r0 beq _stack_frame_msp mrs r0, PSP bne _stack_frame_endif _stack_frame_msp: mrs r0, MSP _stack_frame_endif:  

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