C28x with hard FP Timing Benchmarks

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

Tool Chain Version: 16.9.1

BIOS Version: bios_6_70_00_18_eng

XDCTools Version: xdctools_3_50_04_43_core

Benchmark	Cycles
Interrupt Latency	152
Hwi_restore()	19
Hwi_disable()	13
Hwi dispatcher prolog	210
Hwi dispatcher epilog	157
Hwi dispatcher	368
Hardware Interrupt to Blocked Task	700
Hardware Interrupt to Software Interrupt	420
Swi_enable()	85
Swi_disable()	11
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	4415
Set a Task Priority without a Context Switch	184
Task_yield()	298
Post Semaphore No Waiting Task	90
Post Semaphore No Task Switch	256
Post Semaphore with Task Switch	394
Pend on Semaphore No Context Switch	71
Pend on Semaphore with Task Switch	388
Clock_getTicks()	10
POSIX Create a New Task without Context Switch	7384
POSIX Set a Task Priority without a Context Switch	239
POSIX Post Semaphore No Waiting Task	99
POSIX Post Semaphore No Task Switch	264
POSIX Post Semaphore with Task Switch	402
POSIX Pend on Semaphore No Context Switch	79
POSIX Pend on Semaphore with Task Switch	396

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.