C28x with hard FP Timing Benchmarks

Target Platform: ti.platforms.tms320x28:TMS320F280049M:1

Tool Chain Version: 16.9.1

BIOS Version: bios_6_55_00_05_eng

XDCTools Version: xdctools_3_50_05_11_core_eng

Benchmark	Cycles
Interrupt Latency	153
Hwi_restore()	19
Hwi_disable()	13
Hwi dispatcher prolog	211
Hwi dispatcher epilog	156
Hwi dispatcher	366
Hardware Interrupt to Blocked Task	699
Hardware Interrupt to Software Interrupt	422
Swi_enable()	86
Swi_disable()	12
Post Software Interrupt Again	33
Post Software Interrupt without Context Switch	121
Post Software Interrupt with Context Switch	227
Create a New Task without Context Switch	4241
Set a Task Priority without a Context Switch	182
Task_yield()	296
Post Semaphore No Waiting Task	90
Post Semaphore No Task Switch	255
Post Semaphore with Task Switch	392
Pend on Semaphore No Context Switch	70
Pend on Semaphore with Task Switch	386
Clock_getTicks()	11
POSIX Create a New Task without Context Switch	7175
POSIX Set a Task Priority without a Context Switch	237
POSIX Post Semaphore No Waiting Task	100
POSIX Post Semaphore No Task Switch	264
POSIX Post Semaphore with Task Switch	401
POSIX Pend on Semaphore No Context Switch	79
POSIX Pend on Semaphore with Task Switch	395

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.