C28x with hard FP Timing Benchmarks

Target Platform: ti.platforms.tms320x28:TMS320F280049M_regresstest:1

Tool Chain Version: 18.12.2

BIOS Version: bios_6_76_01_11_eng_k3

XDCTools Version: xdctools_3_55_01_20_core_eng

Benchmark	Cycles
Interrupt Latency	237
Hwi_restore()	18
Hwi_disable()	15
Hwi dispatcher prolog	211
Hwi dispatcher epilog	163
Hwi dispatcher	374
Hardware Interrupt to Blocked Task	599
Hardware Interrupt to Software Interrupt	423
Swi_enable()	86
Swi_disable()	12
Post Software Interrupt Again	34
Post Software Interrupt without Context Switch	123
Post Software Interrupt with Context Switch	228
Create a New Task without Context Switch	3637
Set a Task Priority without a Context Switch	182
Task_yield()	240
Post Semaphore No Waiting Task	88
Post Semaphore No Task Switch	203
Post Semaphore with Task Switch	292
Pend on Semaphore No Context Switch	72
Pend on Semaphore with Task Switch	331
Clock_getTicks()	11
POSIX Create a New Task without Context Switch	6563
POSIX Set a Task Priority without a Context Switch	235
POSIX Post Semaphore No Waiting Task	99
POSIX Post Semaphore No Task Switch	212
POSIX Post Semaphore with Task Switch	303
POSIX Pend on Semaphore No Context Switch	83
POSIX Pend on Semaphore with Task Switch	340

Runtime performance was optimized by reducing CPU clock speed to eliminate flash wait states.

The C28x targets also supports zero latency interrupts. See ti.sysbios.family.c28.Hwi cdocs for details.

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