Texas Instruments

Table of Contents

TI Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 16.12.0

BIOS Version: bios_6_50_00_06_eng

XDCTools Version: xdctools_3_50_00_09_eng

Benchmark Cycles
Interrupt Latency 459
Hwi_restore() 24
Hwi_disable() 18
Hwi dispatcher prolog 536
Hwi dispatcher epilog 220
Hwi dispatcher 751
Hardware Interrupt to Blocked Task 934
Hardware Interrupt to Software Interrupt 758
Swi_enable() 101
Swi_disable() 6
Post Software Interrupt Again 51
Post Software Interrupt without Context Switch 152
Post Software Interrupt with Context Switch 186
Create a New Task without Context Switch 1410
Set a Task Priority without a Context Switch 147
Task_yield() 250
Post Semaphore No Waiting Task 65
Post Semaphore No Task Switch 211
Post Semaphore with Task Switch 311
Pend on Semaphore No Context Switch 73
Pend on Semaphore with Task Switch 279
Clock_getTicks() 5
POSIX Create a New Task without Context Switch 2643
POSIX Set a Task Priority without a Context Switch 124
POSIX Post Semaphore No Waiting Task 73
POSIX Post Semaphore No Task Switch 219
POSIX Post Semaphore with Task Switch 332
POSIX Pend on Semaphore No Context Switch 79
POSIX Pend on Semaphore with Task Switch 286

The benchmark application was built using BIOS.LibType_Custom with the following compiler options: “–endian=little -mv7A8 –abi=eabi –neon –float_support=vfpv3 -q -ms –opt_for_speed=2 –program_level_compile -o3”.

Timings were obtained with the cache enabled.

See the SYS/BIOS User’s Guide for more information regarding how interrupt latency is calculated.