C28x with hard FP Timing Benchmarks

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

Tool Chain Version: 18.1.3

BIOS Version: bios_6_75_00_12_eng_keystone3

XDCTools Version: xdctools_3_51_00_13_core_eng

Benchmark	Cycles
Interrupt Latency	245
Hwi_restore()	19
Hwi_disable()	13
Hwi dispatcher prolog	210
Hwi dispatcher epilog	158
Hwi dispatcher	369
Hardware Interrupt to Blocked Task	593
Hardware Interrupt to Software Interrupt	420
Swi_enable()	87
Swi_disable()	11
Post Software Interrupt Again	33
Post Software Interrupt without Context Switch	119
Post Software Interrupt with Context Switch	226
Create a New Task without Context Switch	4334
Set a Task Priority without a Context Switch	178
Task_yield()	241
Post Semaphore No Waiting Task	87
Post Semaphore No Task Switch	199
Post Semaphore with Task Switch	288
Pend on Semaphore No Context Switch	71
Pend on Semaphore with Task Switch	331
Clock_getTicks()	11
POSIX Create a New Task without Context Switch	7343
POSIX Set a Task Priority without a Context Switch	233
POSIX Post Semaphore No Waiting Task	97
POSIX Post Semaphore No Task Switch	208
POSIX Post Semaphore with Task Switch	298
POSIX Pend on Semaphore No Context Switch	79
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.