GCC Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.skAM3358

Tool Chain Version: 9.2.1

BIOS Version: bios_6_83_00_16_eng

XDCTools Version: xdctools_3_61_04_30_core_eng

Benchmark	Cycles
Interrupt Latency	485
Hwi_restore()	33
Hwi_disable()	14
Hwi dispatcher prolog	543
Hwi dispatcher epilog	247
Hwi dispatcher	788
Hardware Interrupt to Blocked Task	1063
Hardware Interrupt to Software Interrupt	832
Swi_enable()	130
Swi_disable()	7
Post Software Interrupt Again	65
Post Software Interrupt without Context Switch	198
Post Software Interrupt with Context Switch	219
Create a New Task without Context Switch	2129
Set a Task Priority without a Context Switch	175
Task_yield()	335
Post Semaphore No Waiting Task	144
Post Semaphore No Task Switch	311
Post Semaphore with Task Switch	438
Pend on Semaphore No Context Switch	81
Pend on Semaphore with Task Switch	406
Clock_getTicks()	5
POSIX Create a New Task without Context Switch	3580
POSIX Set a Task Priority without a Context Switch	162
POSIX Post Semaphore No Waiting Task	150
POSIX Post Semaphore No Task Switch	306
POSIX Post Semaphore with Task Switch	444
POSIX Pend on Semaphore No Context Switch	97
POSIX Pend on Semaphore with Task Switch	448

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.