GCC Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 7.2.1

BIOS Version: bios_6_55_00_05_eng

XDCTools Version: xdctools_3_50_05_11_core_eng

Benchmark	Cycles
Interrupt Latency	471
Hwi_restore()	34
Hwi_disable()	15
Hwi dispatcher prolog	546
Hwi dispatcher epilog	248
Hwi dispatcher	788
Hardware Interrupt to Blocked Task	1178
Hardware Interrupt to Software Interrupt	878
Swi_enable()	154
Swi_disable()	10
Post Software Interrupt Again	66
Post Software Interrupt without Context Switch	167
Post Software Interrupt with Context Switch	222
Create a New Task without Context Switch	2713
Set a Task Priority without a Context Switch	174
Task_yield()	372
Post Semaphore No Waiting Task	145
Post Semaphore No Task Switch	312
Post Semaphore with Task Switch	459
Pend on Semaphore No Context Switch	81
Pend on Semaphore with Task Switch	421
Clock_getTicks()	6
POSIX Create a New Task without Context Switch	4865
POSIX Set a Task Priority without a Context Switch	166
POSIX Post Semaphore No Waiting Task	152
POSIX Post Semaphore No Task Switch	307
POSIX Post Semaphore with Task Switch	463
POSIX Pend on Semaphore No Context Switch	96
POSIX Pend on Semaphore with Task Switch	453

The benchmark application was built using BIOS.LibType_Custom with the following compiler options:

“-mcpu=cortex-a8 -mfpu=neon -mfloat-abi=hard -mabi=aapcs -O3 -Wunused -Wunknown-pragmas -ffunction-sections -fdata-sections -g -Dti_sysbios_Build_useHwiMacros -Dfar= -D__DYNAMIC_REENT__”.

Timings were obtained with the cache enabled.

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