C28x with hard FP Timing Benchmarks

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

Tool Chain Version: 16.9.1

BIOS Version: bios_6_73_00_11_eng

XDCTools Version: xdctools_3_50_07_20_core

Benchmark	Cycles
Interrupt Latency	241
Hwi_restore()	19
Hwi_disable()	13
Hwi dispatcher prolog	211
Hwi dispatcher epilog	157
Hwi dispatcher	367
Hardware Interrupt to Blocked Task	591
Hardware Interrupt to Software Interrupt	422
Swi_enable()	86
Swi_disable()	12
Post Software Interrupt Again	33
Post Software Interrupt without Context Switch	119
Post Software Interrupt with Context Switch	227
Create a New Task without Context Switch	4346
Set a Task Priority without a Context Switch	177
Task_yield()	239
Post Semaphore No Waiting Task	86
Post Semaphore No Task Switch	198
Post Semaphore with Task Switch	286
Pend on Semaphore No Context Switch	71
Pend on Semaphore with Task Switch	329
Clock_getTicks()	11
POSIX Create a New Task without Context Switch	7368
POSIX Set a Task Priority without a Context Switch	232
POSIX Post Semaphore No Waiting Task	96
POSIX Post Semaphore No Task Switch	207
POSIX Post Semaphore with Task Switch	297
POSIX Pend on Semaphore No Context Switch	80
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.