Texas Instruments

Table of Contents

GCC Cortex-A15 with hard FP Timing Benchmarks

Target Platform: ti.platforms.evmDRA7XX

Tool Chain Version: 4.9.3

BIOS Version: bios_6_46_00_22_eng

XDCTools Version: xdctools_3_32_01_11_eng

Benchmark Cycles
Interrupt Latency 735
Hwi_restore() 80
Hwi_disable() 78
Hwi dispatcher prolog 433
Hwi dispatcher epilog 319
Hwi dispatcher 744
Hardware Interrupt to Blocked Task 1375
Hardware Interrupt to Software Interrupt 904
Swi_enable() 316
Swi_disable() 5
Post Software Interrupt Again 167
Post Software Interrupt without Context Switch 313
Post Software Interrupt with Context Switch 373
Create a New Task without Context Switch 2361
Set a Task Priority without a Context Switch 344
Task_yield() 711
Post Semaphore No Waiting Task 178
Post Semaphore No Task Switch 529
Post Semaphore with Task Switch 884
Pend on Semaphore No Context Switch 171
Pend on Semaphore with Task Switch 740
Clock_getTicks() 5
POSIX Create a New Task without Context Switch 3311
POSIX Set a Task Priority without a Context Switch 574
POSIX Post Semaphore No Waiting Task 171
POSIX Post Semaphore No Task Switch 535
POSIX Post Semaphore with Task Switch 921
POSIX Pend on Semaphore No Context Switch 166
POSIX Pend on Semaphore with Task Switch 746

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

“-mcpu=cortex-a15 -mfpu=neon -mfloat-abi=hard -mabi=aapcs -O3 -Wunused -Wunknown-pragmas -ffunction-sections -fdata-sections -Dti_sysbios_Build_useHwiMacros -Dfar= -D__DYNAMIC_REENT__”.

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