C28x with hard FP Timing Benchmarks

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

Tool Chain Version: 16.9.1

BIOS Version: bios_6_52_00_11_eng

XDCTools Version: xdctools_3_50_03_33_core

Benchmark	Cycles
Interrupt Latency	153
Hwi_restore()	19
Hwi_disable()	13
Hwi dispatcher prolog	210
Hwi dispatcher epilog	155
Hwi dispatcher	366
Hardware Interrupt to Blocked Task	588
Hardware Interrupt to Software Interrupt	420
Swi_enable()	86
Swi_disable()	11
Post Software Interrupt Again	33
Post Software Interrupt without Context Switch	121
Post Software Interrupt with Context Switch	226
Create a New Task without Context Switch	3402
Set a Task Priority without a Context Switch	177
Task_yield()	240
Post Semaphore No Waiting Task	47
Post Semaphore No Task Switch	195
Post Semaphore with Task Switch	284
Pend on Semaphore No Context Switch	70
Pend on Semaphore with Task Switch	331
Clock_getTicks()	10
POSIX Create a New Task without Context Switch	6073
POSIX Set a Task Priority without a Context Switch	237
POSIX Post Semaphore No Waiting Task	56
POSIX Post Semaphore No Task Switch	203
POSIX Post Semaphore with Task Switch	292
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.