GCC Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 7.2.1

BIOS Version: bios_6_70_00_18_eng

XDCTools Version: xdctools_3_50_04_43_core

Benchmark	Cycles
Interrupt Latency	475
Hwi_restore()	34
Hwi_disable()	15
Hwi dispatcher prolog	545
Hwi dispatcher epilog	245
Hwi dispatcher	788
Hardware Interrupt to Blocked Task	1176
Hardware Interrupt to Software Interrupt	855
Swi_enable()	129
Swi_disable()	10
Post Software Interrupt Again	66
Post Software Interrupt without Context Switch	167
Post Software Interrupt with Context Switch	219
Create a New Task without Context Switch	2807
Set a Task Priority without a Context Switch	176
Task_yield()	367
Post Semaphore No Waiting Task	179
Post Semaphore No Task Switch	336
Post Semaphore with Task Switch	460
Pend on Semaphore No Context Switch	80
Pend on Semaphore with Task Switch	422
Clock_getTicks()	5
POSIX Create a New Task without Context Switch	5015
POSIX Set a Task Priority without a Context Switch	164
POSIX Post Semaphore No Waiting Task	151
POSIX Post Semaphore No Task Switch	330
POSIX Post Semaphore with Task Switch	488
POSIX Pend on Semaphore No Context Switch	96
POSIX Pend on Semaphore with Task Switch	442

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.