GCC Cortex-A8 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmTI814X

Tool Chain Version: 7.2.1

BIOS Version: bios_6_73_00_11_eng

XDCTools Version: xdctools_3_50_07_20_core

Benchmark	Cycles
Interrupt Latency	483
Hwi_restore()	33
Hwi_disable()	14
Hwi dispatcher prolog	545
Hwi dispatcher epilog	247
Hwi dispatcher	788
Hardware Interrupt to Blocked Task	1059
Hardware Interrupt to Software Interrupt	836
Swi_enable()	128
Swi_disable()	8
Post Software Interrupt Again	65
Post Software Interrupt without Context Switch	167
Post Software Interrupt with Context Switch	220
Create a New Task without Context Switch	2799
Set a Task Priority without a Context Switch	174
Task_yield()	340
Post Semaphore No Waiting Task	184
Post Semaphore No Task Switch	313
Post Semaphore with Task Switch	407
Pend on Semaphore No Context Switch	80
Pend on Semaphore with Task Switch	384
Clock_getTicks()	4
POSIX Create a New Task without Context Switch	4893
POSIX Set a Task Priority without a Context Switch	165
POSIX Post Semaphore No Waiting Task	150
POSIX Post Semaphore No Task Switch	328
POSIX Post Semaphore with Task Switch	424
POSIX Pend on Semaphore No Context Switch	95
POSIX Pend on Semaphore with Task Switch	391

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.